265results about How to "Various working modes" patented technology

The invention discloses a lightweight quick response aerial remote sensing inertial-stabilized platform controlling system used for carrying out initiative controlling upon triaxial frames of stabilized platforms. The system comprises a DSP module, an FPGA module, a PWM power driving module, brushless DC torque motors, a stabilized platform frame, a measuring sensor, and an interface circuit. Angular position information, angular rate information and attitude information of the frame output by the measuring sensor are acquired by the DSP module and the FPGA module through the interface circuit in real time. PID controlling algorithm is executed by the DSP module and the FPGA module, and 18 PWM signals for controlling the three brushless DC torque motors are generated. The signals are converted into voltage signals by the PWM power driving module, and the brushless DC torque motors are driven, and the frame is driven to rotate, such that the initiative controlling upon the triaxial frame is realized. According to the invention, an independent mode and a combined mode are realized, and a frame soft lock function and an independent course configuration function under the combined mode are realized. Therefore, the operation of the platform is more reliable and intelligent.

An electro-hydraulic hybrid power drive system comprises an engine, a first motor, a second motor, a first planetary gear set, a second planetary gear set and a hydraulic control gear shifting set connected with the engine, wherein the first motor is coupled with the engine; the second motor is coupled with the first planetary gear set and the second planetary gear set; the first planetary gear set and the second planetary gear set are coaxially connected; the hydraulic control gear shifting set comprises a first gear and a second gear; a wet type dual clutch unit is arranged between the first gear and the second gear; the first gear, the second gear and the wet type dual clutch unit are coaxially connected with the engine. With the adoption of the special electro-hydraulic hybrid power drive system, different work modes can be realized according to different requirements, ultra-low-speed stable operation can be realized, large torque is provided, fuel consumption is reduced, and the work requirement of a vehicle is met.

The invention discloses an exercise index measurement insole and a data processing method corresponding to the same. The motion index measurement insole comprises a piezoelectric sensor, a master chip and a power supply unit, wherein the master chip comprises a three-axis acceleration sensor, a single chip and a Bluetooth transmitting module; the piezoelectric sensor is arranged at the front sole part of the insole, and the master chip is arranged in the middle of the insole; and the power supply unit provides power for the master chip, output ends of the piezoelectric sensor and the three-axis acceleration sensor are connected with an input end of the single chip respectively, and an output end of the single chip is connected with the Bluetooth transmitting module. The exercise index measurement insole disclosed by the invention has high data acquisition accuracy, meanwhile, acceleration and pressure detection data are acquired, and each motion index parameter of a human body can be accurately reflected; the working modes are various, and index measurement modes of various exercises such as running, basketball playing, football playing, rope skipping, walking and the like are provided specifically; and the structure is simple, the cost is low, the use is convenient, and the product is invisible.

The invention discloses a multifunctional microwave extraction apparatus for extracting fragrances and flavors from Chinese cigarette, and belongs to the technical field of equipment of extracting fragrances and flavors from cigarettes. An extraction cavity of the extraction apparatus is vertical bucket-shaped, and the inside of the extraction cavity is provided with a snake-shaped coil pipe passing through the whole extraction cavity from top to bottom; and a microwave source of the extraction cavity consist of two microwave generators and a working power supply connected with the microwave source. A control part comprises temperature control, pressure control and flow rate control; and temperature and pressure sensors for performing the temperature and pressure control are arranged on the snake-shaped coil pipe of the extraction cavity, a flow rate sensor is arranged on a guide pipe between a valve and the extraction cavity, and the electric signal output ends of the sensors are connected with a signal input end of a control system of a computer. The extraction apparatus has the advantages of unique structure, reasonable design, adoption of the snake-shaped coil pipe and the two microwave generators, powerful function, high extraction efficiency and easy operation, and is particularly used for extracting the fragrances and the flavors from the Chinese cigarette.

The invention relates to a voltage regulating device and a voltage regulating method. The voltage regulating device comprises a distribution system and a voltage regulating system, wherein the distribution system is used for acquiring the predictive voltage need by a corresponding power domain to execute a task according to the task information of each power domain in a chip, detecting the operation voltage of each power domain in the chip to acquire the detected voltage of the corresponding power domain and acquiring the voltage distribution control signal of the corresponding power domain according to the predictive voltage and the detected voltage; the voltage regulating system is connected with the distribution system and the power domains in the chip and used for regulating the voltage of the corresponding power domain in the chip according to the control signal output by the distribution system so as to allow the detected voltage of the corresponding power domain reaches the predictive voltage during task execution. The voltage regulating device has the advantages that the voltage of multiple power domains in the chip is controlled at the same time through the voltage regulating device, a digital control part is used to replace an analog circuit in the prior art, and the area of the voltage regulating device in the chip is reduced.

The invention belongs to a multi-quadrant photovoltaic energy storage and inversion integrated device. The integrated device comprises a photovoltaic cell power conversion device, an energy storage cell bidirectional energy conversion device, a DC bus energy bidirectional conversion device and the like. Owing to the integrated energy dispatching software based on bus voltage variation, the multi-quadrant photovoltaic, energy storage and inversion integrated multi-power flowing function is realized.

The invention relates to a damping transmission mechanism for an exercise rehabilitation training device, which comprises a motor (1), a transmission device (2), a damper (3) and limb attachment devices (4). The damping transmission mechanism is characterized in that the damper (3) is an electro-rheological damper, the motor (1) is connected with a rotating shaft of the electro-rheological damperthrough the transmission device (2), and both ends of the rotating shaft of the electro-rheological damper are connected with the limb attachment devices (4) respectively. Compared with the prior art,the mechanism has the advantages that the exercise rehabilitation training device applying the damping transmission mechanism has high control accuracy and continuously adjustable damping amplitude.

The invention provides a purification fresh air unit with dehumidifying and energy recycling functions and a dehumidifying and purifying method of the purification fresh air unit. The unit is characterized in that dehumidified air and return air can be subjected to energy exchange, the effect of increasing the temperature of an air outlet can be achieved without passive and active heating, meanwhile, the unit is further provided with a primary return air structure, airflow circulation is formed indoors, the temperature, humidity and cleanliness of indoor air are continuously adjusted, and the effects of saving energy and improving indoor comfort are achieved.

The invention discloses a multi-mode steering system with a nested type dual-rotor steering motor and a control method. The multi-mode steering system comprises a steering shaft, an electromagnetic clutch, a dual-rotor steering motor and an ECU, wherein the electromagnetic clutch comprises an input end and an output end; the electromagnetic clutch is selectively combined with or separated from the input end and the output end; the steering shaft penetrates through a central through hole of the electromagnetic clutch and is capable of driving the input end to rotate; the dual-rotor steering motor comprises an inner rotor and an outer rotor; the inner rotor is connected with the steering shaft which penetrates through the electromagnetic clutch; one end of the outer rotor is connected with the output end of the electromagnetic clutch; a diverter is driven by the other end of the outer rotor; and the ECU is electrically connected with the dual-rotor steering motor and the electromagnetic clutch. The steering system disclosed by the invention has various steering modes and is capable of promoting the safety performance of an automobile and realizing the flexible steering.

The invention relates to a multimode half-duplex frequency modulation transceiver, which belongs to the field of communication. The multimode half-duplex frequency modulation transceiver generates a modulated carrier wave which is required during transmission and a local carrier wave which is required by final stage down frequency conversion during receiving by adopting a carrier wave generating circuit in a direct digital synthesis form, so the contradiction between the modulation accuracy and the linearity, and frequency stability and the frequency accuracy in the design of the multimode half-duplex frequency modulation transceiver is effectively solved. The multimode half-duplex frequency modulation transceiver can compatibly realize a frequency modulation (FM) modulation mode of a narrow band in an analog-and-digital form and can compatibly realize an FM / Chirp modulation mode adopting a step Chirp pulse carrier wave in the analog-and-digital form, so that the adaptability of the multimode half-duplex frequency modulation transceiver is further improved.

The invention relates to a serial-parallel structure stroke increasing distributed hybrid power system. The system comprises a drive unit, an energy unit and a control unit, wherein the energy unit and the control unit are connected with each other; the control unit is connected with the drive unit; the energy unit comprises a power battery pack and an engine; the drive unit comprises a first electric motor, a speed reducer, a first clutch and a second clutch; the engine and the first electric motor are connected through the first clutch; the first electric motor and the speed reducer are connected through the second clutch; the first electric motor is connected with the control unit; and the drive unit further comprises a left hub motor and a right hub motor which are connected with the control unit. Compared with the prior art, the serial-parallel structure stroke increasing distributed hybrid power system has the advantages that the speed reducer is arranged and replaces a gearbox, so that space is reduced; by the adoption of the hub motors, the transmission efficiency is improved, electronic active differential control of left and right rear wheels and cooperative control of the double clutches are achieved, and requirements for power of different running conditions are met.

The invention provides a flexible turning-over nursing wheelchair bed. The bed comprises a bed body assembly, turning-over mechanisms and a wheelchair assembly. The wheelchair assembly can be combinedwith the bed body assembly to form a bed posture and also can be separated from the bed body assembly to be converted into a wheelchair posture; the turning-over mechanisms are connected to the leftand right sides of the bed body assembly; a turning-over bed sheet is laid on the upper surface of the bed body assembly; the two ends of the turning-over bed sheet are wound around tubular motors ofthe turning-over mechanisms respectively; a preset height difference is formed when the turning-over mechanisms need to turn over, and in the state, the left turning-over mechanism and the right turning-over mechanism are driven by the tubular motors to enable the left side and the right side of the front or the back of a person to form an angle convenient for turning-over. The tubular motors on one side are supported to a certain height to drive a patient on the bed sheet to rise to a certain height, and then the patient is slightly pushed to turn over, so that manpower is saved, and the patient is protected against secondary injury. The wheelchair can be driven out of a sickbed to be changed into a seat type wheelchair posture, so that the space occupancy is improved and the production cost is reduced.

The invention relates to the technical field of teaching assisting devices and particularly relates to a multifunctional seat for students. The multifunctional seat has multiple working modes and relatively high practicability, and the body discomfort of users is unlikely to occur; and the height can be integrally adjusted, and the use limit is relatively low, so that the multifunctional seat canbe effectively suitable for different users, the convenience is brought to the user, and the use reliability is improved. The multifunctional seat comprises a plate body, two groups of support rods, aback plate, a left limiting belt, a right limiting belt, two groups of adjusting fasteners, a clamp head, a buckle, a massaging roll, a rotating shaft, a base plate, a threaded rod and a threaded pipe, wherein two groups of fixed rods are respectively connected to the bottom ends of the front sides of a left support rod and a right support rod; the left and right ends of a left limiting belt anda right limiting belt are respectively fixed on the right side wall of the left support rod and the left side wall of the right support rod; and the top end of the threaded plate is connected with thebottom end of the plate body, the bottom end of the threaded rod is inserted into the top end of the threaded pipe through threads, a placement slot is formed in the top end of the base plate, and aball bearing is arranged in the placement slot.

The invention relates to a high-temporal-spatial-resolution multi-modal carrier dynamics measurement system and measurement method. The measurement system comprises the steps that a femtosecond laserwhich emits near-infrared femtosecond laser; a wavelength selection light path which selects the wavelength of the near-infrared femtosecond laser; a first spatial light path which is used for exciting the surface of the sample to start an ultrafast carrier dynamic process; a second spatial light path which is used for carrying out ultrafast scanning imaging or excitation on the sample to generatetransient cathode fluorescence; a cathode fluorescence collector which is used for collecting transient cathode fluorescence excited on the surface of the sample; a spectrophotometer which is used for splitting the transient cathode fluorescence collected by the cathode fluorescence collector; an optical CCD which is used for carrying out spectral measurement of time integration on the transientcathode fluorescence split by the light splitting spectrometer; a time-resolved fluorescence detector which is used for measuring the transient cathode fluorescence spectrum split by the light splitting spectrometer; and a scanning electron microscope and scanning electron image detection system which is used for detecting a time-resolved scanning secondary electron image.

The invention discloses electronic equipment which aims to solve a technical problem in the prior art that an operation requirement can not be satisfied while the size of the electronic equipment is reduced. The electronic equipment comprises a first main body, a second main body and a connecting device, wherein the first main body is provided with a first display unit; the first display unit is arranged on the first surface of the first main body; the second main body is provided with a second display unit; the second display unit is arranged on the second surface of the second main body; the connecting device is used for connecting the first main body with the second main body; the first main body and the second main body can rotate by the connecting device; and the connecting device is provided with a first end connected with the first main body, and a second end connected with the second main body.

The invention discloses a radio frequency plasma source for a micro satellite. The radio frequency plasma source is characterized by comprising a propellant supply system, a radio frequency dischargedevice and an electromagnetic acceleration device, wherein the propellant supply system comprises a propellant storage tank, a pipeline and a flow controller; the radio frequency discharge device comprises a discharge cavity, an antenna and a DC / RF converter, a matcher, a satellite bus and a Faraday shield cylinder, and the electromagnetic acceleration device comprises a magnetic mirror and a magnetic spray pipe. According to the radio frequency plasma source, the ionization rate and the plasma density of the propellant of the plasma source are improved through the radio frequency discharge technology, the plasma is accelerated by the aid of the magnetic mirror and the magnetic spray pipe, and the plasma discharge speed of the plasma source is increased; and the integral structure is compact in design and light, does not need parts such as an electrode, accelerates grid electrode and neutralizer which are prone to corrode and seriously restricts the service life of the plasma source,and the performance and the service life of the plasma source are further improved.

The invention relates to an electromagnetic heater, including a base, a support frame and a heating rod. A middle part of the base is provided with an electromagnetic generation device; a support is rotatably arranged at one side of the base; the support frame is L-shaped; one end of the support frame arranged on the support in a horizontally rotatable manner, and the other end is provided with the heating rod; the heating rod is arranged vertical to the base; the heating rod can move up and down along the support frame; and the heating rod is made of metal material. The electromagnetic heater provided by the invention can heat water in a large metal container with a high height, and can also utilizes the heating rod to heat water in a cup, has multiple working modes, and can satisfy daily requirements of people; and the electromagnetic heater can heat both a metal container and a nonmetal container, is exquisite in structure and has strong practicability.

The invention discloses electronic equipment with a more flexible adjustment mechanism. The electronic equipment comprises a first body, a second body and a first connecting device. The first side of the first body is provided with a display unit. A second of the second body is provided with an input unit. The first body and the second body are connected and rotate through the first connecting device. The first connecting device comprises a first support and a second support. The first support is provided with a first end connected with the first body and a second end connected with the second body. The second support is provided with a third end connected with the first body and a fourth end connected with the second body.

The invention relates to a chromatographic detection device, which comprises a chromatographic column, a detection unit, a switching unit and a control unit, wherein the chromatographic column is connected with the detection unit through the switching unit; the detection unit comprises at least two detection modules; the switching unit is used for selectively communicating the chromatographic column with one of the at least two detection modules by adjusting pressure; the control unit is connected with the switching unit and switching gas respectively; and the control unit is used for controlling the switching unit to further control direction of driving a sample by the switching gas, so that the sample which gets out of the chromatographic column is driven by the switching gas to enter the detection module communicated with the chromatographic column. The invention also provides a chromatographic detection method. The device and the method have the advantages of more detection modes, convenience and fastness in switching, small dead volume, long life of the detector and the like.

The invention discloses a frequency and polarization programmable patch antenna. The frequency and polarization programmable patch antenna comprises a first metal covering layer, a medium layer, a second metal covering layer and four metalized through holes, which are arranged sequentially from top to bottom, wherein the first metal covering layer comprises a feeder line and a radiation patch; the feeder line comprises a microstrip line which is connected with an external feed port; the microstrip line is connected with one side of the radiation patch through a high-resistance line; the radiation patch is a square metal patch; a gap is etched on the other side, close to the radiation patch, of the radiation patch, namely the position of a radiation side; the gap is parallel to the radiation side; the metalized through holes are formed in the two sides of a gap bent part and the two ends of the metalized through holes are connected with the first metal covering layer and the second metal covering layer respectively; the metalized through holes are provided with switches respectively; when a certain switch is conducted, the first metal covering layer is connected with the metalized through hole controlled by the switch and the second metal covering layer. The frequency and polarization programmable patch antenna has the beneficial effects that the programmable antenna has a simple structure of a feed network, a small volume and more working patterns.

The invention relates to the technical field of accessory devices of kitchenware, in particular to an oil splash prevention pot cover. The oil splash prevention pot cover is diversified in working mode, can effectively prevent edible oil in a pot from splashing and prevent a user from being scalded, and has high safety and practicability. In addition, the user can observe the food cooking condition in the pot conveniently, the oil splash prevention pot cover brings convenience to the user, and thus the usage reliability of the oil splash prevention pot cover is improved; the oil splash prevention pot cover comprises a main body and a handle, and a groove is formed in the top wall of the main body; a telescopic rack is arranged on the inner top wall of the groove, and the oil splash prevention pot cover further comprises a threaded rod, a threaded pipe, a connection plate, a drive gear, a driven gear, a servo motor, a chain, an oil absorption felt, a refrigerator, a compressor, a condenser, a capillary tube, an evaporator and a ventilation pipe; the drive gear is mounted on a transmission shaft, the chain sleeves the drive gear and the driven gear, the oil absorption felt is fixed on four sets of hooks, and the refrigerator is mounted in a working cavity; the oil splash prevention pot cover further comprises a transparent baffle, an observing hole is formed in the main body, andthe transparent baffle is mounted in the observing hole.

The invention relates to the technical field of practical tools, in particular to a practical housework integrated creative tool, which has various working modes, which is effective to clean refractory stain, good in cleaning effect and high in practicality, and which is effective to clean walls, windows and other places, has low application limits and accordingly has better reliability of use. The practical housework integrated creative tool comprises a body, a servo motor, a suction fan, multiple sensor units, a receiver, universal wheels, two roller units and a dust collection chamber; a working chamber is arranged in the body; the universal wheels are mounted at on the right side of the bottom end of the body; the multiple sensor units are mounted on the right wall of the body; the practical housework integrated creative tool also comprises a water tank, a communicating hose, a high pressure water pump, a sprayer, two fixture units, a roll, multiple bristle units, a dust suction pipe, a driving motor, a belt and a rotating motor; a water storage chamber is arranged in the water tank; a spindle is arranged between the two fixture units, the roll sleeves the spindle, and the bristle units are mounted on the sidewall of the roll; the bottom end of each roller unit is provided with a plurality of sucker units.

The invention discloses an energy storage unit for supplying short-time high-power supply and a method. The input of a single-phase low-power power supply (alternating current or direct current, not greater than 6KW) passes through a rectifying and voltage-boosting apparatus, a DC-DC conversion module and an output rectifying and filtering module to transmit electric charges to a high-capacity energy storage which consists of multiple high-capacity capacitor modules and a medium-capacity capacitor module; and the process is completed within a few hundred seconds. After the high-capacity energy storage completes energy storage, single-phase short-time high-power output can be provided for the outside, so that the power supply requirement of a motor direct drive type operating mechanism can be satisfied; the energy storage unit has the advantages of modular structure, high energy storage density, high energy storage speed, diversified working patterns, safety and reliability in use, light weight, convenience in energy storage expansion and the like; the problem of dependence of short-time operation of high-capacity equipment on the conventional high-capacity power supply can be solved; and in addition, long-distance and large-section conductor power transmission can be avoided, the cost is lowered, and the adaptivity and mobility of the short-time high-power equipment are improved.

The invention discloses a household multifunctional water-saving device. In the device, a single chip microcomputer (SCM) is used as the control core, a water flow velocity sensor can provide a water flow velocity signal for the SCM control core, a stepping motor drives a water-saving value to realize the regulation of water flow, and the expected water flow velocity is set through a keyboard while a digital tube is used to display the set value and current value of the water flow velocity. The device has two start modes of infrared induction and keyboard, a user can control the device to work by directly pressing a start button or a stop button and control a tap to open or close through the infrared induction mode. The device has complete functions, high practicability, low cost, simple use method and intuitive digital display, greatly reduces the inconvenience caused by the current household water-consuming device, effectively achieves the purpose for saving water and is suitable to popularize for use.

A two-level charge-discharge system belongs to bidirectional power transformation systems and solves the problem that an existing two-level charge-discharge system is low in capacity, short in power supporting time and simple in operating mode. The two-level charge-discharge system comprises a bidirectional direct-current and alternating-current converter, a controller and N bidirectional direct-current converters. The bidirectional direct-current and alternating-current converter is in parallel connection with input ends of the N bidirectional direct-current converters through a direct-current bus, and output ends of the N bidirectional direct-current converters are connected with N groups of batteries respectively. The controller comprises a mode judging module, an island operating module, a synchronous discharging module, a synchronous charging module, a segmented constant-current charging module and a constant-current and constant-voltage charging module. Driving signals generated by the controller are transmitted to the bidirectional direct-current and alternating-current converter and the N bidirectional direct-current converters respectively. The two-level charge-discharge system is high in capacity, rich in operating modes, high in reliability, capable of realizing five operating modes including island operating, synchronous discharging, synchronous charging, segmented constant-current charging and constant-current and constant-voltage charging, and applicable to megawatt-level power accumulation systems.

The invention provides a vapor generator and an electric cooking appliance with a vapor cooking function, and relates to the technical field of electric kitchen appliances. The vapor generator comprises a heating body and a heating assembly arranged at the heating body, a plurality of passages running through the heating body are formed in the heating body at intervals, the heating assembly is used for conducting heat to the heating body, and the heating body transmits heat to water in the passages; the ends of the passages are connected with communicating pipes, and communicating ports of thecommunicating pipes can be at least one kind of a water inlet, a vapor outlet or a pipe interconnection port so that the passages can be communicated with water inlet pipes or vapor outlet pipes or other passages through the communicating pipes. The technical problems in the prior art are solved that the vapor generator is single in work mode, and cannot flexibly adapt to different work environments.

The invention discloses a hanging type electric toothbrush comprising a toothbrush body, a charging seat and a cover cup; a brush handle part comprises a machine main board arranged inside a sleeve. Awaterproof assembly is arranged between the brush handle part and a brush head part and comprises a front seal part, an inner seal part and a sealing sleeve which are arranged sequentially from outside to inside. A waterproof rubber ring is arranged between the sleeve and a bottom cover, and a motor is a magnetic levitation motor. The charging seat is wall-hung, and the toothbrush body is hung onthe charging seat to charge a battery. The cover cup can openly cover the upper part of the charging seat and forms a closed space jointly with the charging seat. When the toothbrush body is hung onthe charging seat, at least the brush head part is in the closed space. The hanging type electric toothbrush feels softer and has better cleaning effect when in use while noise is reduced; a body adopts a reasonable waterproof structure design, so the electric toothbrush can be flushed directly with water, and the service life is ensured; the hanging type wireless charging is more scientific, safer, more convenient, and charge and discharge protection can be carried out.

The invention discloses an oil-electricity hybrid multi-mode automobile drive system. The system is mainly composed of an engine, two clutches, an ISG motor, two overrun clutches, two hub motors, a control unit ECU, a motor controller, a storage battery group and the like. The two ends of an ISG motor rotor are connected with the output end of the engine and a transmission shaft through the first clutch and the second clutch respectively. The two ends of each overrun clutch are connected with the transmission shaft and a corresponding wheel. The wheels are internally provided with the hub motors which can directly drive a vehicle to run. The control unit ECU sends an instruction to the clutches and the motor controller according to signals fed back by a sensor so that the combining / separating of the clutches and power output of the motor can be controlled and the purpose of work mode switching can be achieved. By means of the multi-mode character of the system, the opportunity of working at an efficient range is increased for the engine; and by means of the overrun clutches, the differential function under certain modes can be achieved, the energy consumption of additional loads can also be reduced, and the system efficiency can be improved.

The invention relates to the technical field of auxiliary devices for articles of daily use, in particular to an automatic shoe cleaning machine. According to the automatic shoe cleaning machine, position adjustment of the shoe is not needed for multidirectional cleaning, convenience is brought for a user, the cleaning effect is higher, and the practicability is higher; the operating modes are various, and the cleaned shoe can be quickly dried, thereby improving the use reliability; the automatic shoe cleaning machine comprises a machine body, a first motor, a connecting plate, a spongy cushion layer, an inner sleeve, an outer sleeve and a supporting plate, and the machine body is internally provided with working cavities; the automatic shoe cleaning machine further comprises a partition plate, a sensor, two sets of first supporting frames, two sets of second supporting frames, two sets of first rotating rollers, two sets of second rotating rollers, two sets of driving belts, two setsof servo motors and two sets of belts, wherein the sensor is arranged in a first working cavity, and electrically connected to the first motor and the two sets of servo motors, and the two sets of belts are both provided with a plurality of sets of hairbrushes; the automatic shoe cleaning machine further comprises an electric heating plate, a draught fan, a fixing device and a second motor, wherein the draught fan is arranged in a second working cavity, and the electric heating plate is located at an output end of the draught fan.

The invention discloses a modular energy storage converter parallel operation and hot plug control method. When the modular energy storage converter is disconnected from the power grid and is in an off-grid black-start state, the upper-layer controller issues a power module grid-connected relay closing command at the same time, a main module virtual synchronous machine is generated through an automatic main selection strategy. The rest are slave virtual synchronous machines. A main module virtual synchronous machine is controlled to be softly started to establish load voltage, and then, the slave module virtual synchronous machine is subjected to pulse unlocking and operates in parallel with the master virtual synchronous machine, so that each module of the modular energy storage converteris quickly accessed to a power grid and a load, the problems of single working mode, slower multi-module starting during off-grid operation and electrical impact caused by incorporation of multiple modules into the system in the traditional technical scheme are solved, and good electric energy quality is kept.