231results about How to "Easy to generate electricity" patented technology

A method and system is provided for optimizing the performance of a power generation and distribution system that monitors the performance of a power system, detects disturbances and calculates statistical information, uses historical performance data and economic factors to analyze and control the production of power. Load demands are predicted by utilizing very short term load forecasts that are based on historical load data, demand patterns and short term load forecasts. Generating units are each assigned a temporal trajectory of output power over consecutive time intervals. The allocation of available resources is assigned so as to minimize costs associated with meeting changing loads.

A solid polymer fuel cell which can stably generate electric power for long, because the cell is enabled to uniformly supply a fuel gas to all anodes by means of extended flow passages which are extended from anode-side flow passages and formed on a anode-side plate on the downstream side of the ends of the anodes in the direction of fuel gas flow, a water absorbing means for nearly uniformly performing water absorption, water retention, and drainage on all channels provided at the ends of the extended flow passages, and a selective gas discharging means for discharging a gas more selectively than water on the upstream side of the water absorbing means. In addition, the power generation characteristics and service life of the fuel cell can be improved further, because the cell can maintain a solid polymer film in a moist state as a whole and can efficiently supply the fuel gas to all anodes by a means for distributing the fuel gas to the inlet sections of the anode-side flow passages and a means for distributing water from a water source to the inlet sections of the anode-side flow passages through holes having a prescribed form and leading to the inlet sections of the anode-side flow passages.

This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

A method and system is provided for predicting loads within a power system through the training of on-line and an off-line neural networks. Load data and load increments are used with an on-line load prediction scheme to generate predicted load values to optimize power generation and minimize costs. This objective is achieved by employing a method and system which predicts short term load trends through the use of historical load data and short term load forecast data.

The invention is a generator for photovoltaic conversion of concentrated sunlight into electricity. A generator according to the invention incorporates a plurality of photovoltaic cells and is intended for operation near the focus of a large paraboloidal reflector pointed at the sun. Within the generator, the entering concentrated light is relayed by secondary optics to the cells arranged in a compact, concave array. The light is delivered to the cells at high concentration, consistent with high photovoltaic conversion efficiency and low cell cost per unit power output. Light enters the generator, preferably first through a sealing window, and passes through a field lens, preferably in the form of a full sphere or ball lens centered on the paraboloid focus. This lens forms a concentric, concave and wide-angle image of the primary reflector, where the intensity of the concentrated light is stabilized against changes in the position of concentrated light entering the generator. Receiving the stabilized light are flat photovoltaic cells made in different shapes and sizes and configured in a concave array corresponding to the concave image of a given primary reflector. Photovoltaic cells in a generator are also sized and interconnected so as to provide a single electrical output that remains high and stable, despite aberrations in the light delivered to the generator caused by, for example, mispointing or bending of the primary reflector. In some embodiments, the cells are set back from the image formed by the ball lens, and part of the light is reflected onto each cell small secondary reflectors in the form of mirrors set around its perimeter.

An improved wave energy converter for use in offshore and deep-sea locations. The wave energy converter is adapted for secure attachment to the bottom of a body of water (e.g., the ocean floor), preferably beyond the breaker zone. The wave energy converter is selectively adjustable in length. A hydraulic power generation system is used to convert the energy present in the waves into hydraulic power that can be use to generate electricity and for other purposes, such as desalinization. The system may include a hydraulic piston assembly, a floatation device that is connected to the piston assembly, high and low pressure hydraulic reservoirs, and a hydraulically driven power generator. The floatation device moves upward in response to rising waves, and downward under the force of gravity in response to falling waves. The system utilizes this downward gravitational force to discharge fluid from the piston assembly, which in turn, drives the power generator. A control system is used to detect water conditions and to selectively adjust the length of the support structure and the fluid flow characteristics to dynamically optimize power generation based on changing water conditions.

The invention relates to a wave energy, wind energy and tidal current energy combined power generating device. The wave energy, wind energy and tidal current energy combined power generating device comprises a wind driven power generating device, a wave energy power generating device, a tidal current energy power generating device, floating bodies and a battery pack; the wind driven power generating device, the wave energy power generating device and the battery pack are fixed on the floating bodies, the tidal current energy power generating device is connected with the floating bodies through a supporting rod, and the wind driven power generating device, the wave energy power generating device, the tidal current energy power generating device and the battery pack are respectively electrically connected with an inversion rectifier fixed on the floating body through conducting wires. According to the wave energy, wind energy and tidal current energy combined power generating device, the wave energy, the wind energy and the tidal current energy are captured, rectified and transmitted to the battery pack or directly transmitted to be used by loads such as buoys and seabed superchargers, and the first-order transformation from ocean energy to electric energy and the power generation function of the device can be realized. The wave energy, the wind energy and the tidal current energy combined power generating device has advantages of high ocean energy utilization rate, low cost, independence, continuity and stability in power generation, simplicity and convenience in building and the like and can also be used for supplying power to offshore ocean equipment and islands.

This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

The present invention comprises methods for manufacturing solar cell modules having improved fault tolerance and the ability to maximize module power output in response to non-optimal operation of one or more solar cells in the module. To improve the fault tolerance, the individual solar cells may each have a bypass diode coupled thereto to that when a single solar cell faults, only the faulted solar cell is affected. In one embodiment, a transistor may be used to improve the fault tolerance of a solar cell module.

The invention discloses a system and method for controlling a unit power factor single-level AC-DC converter. The system comprises a composite controller, and the composite controller receives a secondary side direct current bus voltage and current signal and a secondary side direct current reference voltage and current signal of the single-level AC-DC isolation converter and converts the received voltages and the currents into an effective alternating current reference value. The effective alternating current reference value and the voltage value are calculated through a multiplying unit into a primary side current reference signal, and the primary side current reference signal, a primary side current signal, a primary side voltage signal and a secondary side voltage signal are input into a current controller. According to the system and method, both-way and single-level AC-DC or DC-AC isolation converting can be achieved, the system is conveniently used in battery charging / discharging or photovoltaic grid connection generating, the cascading modularization single-level isolation AC-DC conversion can be achieved, and the system serves as a power electronic transformer to be applied to high-voltage alternating current input application occasions.

The invention discloses an active power router with an AC / DC through-fault function, comprising a high-voltage rectifier-level MMC-AC / DC (modular multilevel converter-AC / DC) converter connected with ahigh-voltage AC distribution network of an AC / DC distribution network via a high-voltage AC port, and a rectifier-level MMC-AC / DC converter and a transformer isolator-level MMC-DC / DC converter both connected with a high-voltage DC distribution work of a high-voltage DC port. A low-voltage DC port of the transformer isolator-level MMC-DC / DC converter is connected with the DC side of a three-phaseDC / AC converter to form a low-voltage DC interface; a low-voltage AC port of the three-phase DC / AC converter may be connected with a low-voltage AC grid or a single-phase / three-phase AC load. The high-voltage side of the active power router is composed of a hybrid sub-module with negative level output, giving the AC / DC through-fault capacity, and ensuring that the power router can run uninterruptibly and reliably when an external AC / DC grid fails; power generation penetration rate of a distributed clean energy and reliability of power supply can be further improved.

The invention provides a generator for vehicle that is miniaturized and uses space in a generator cover effectively. The generator for vehicle has a rotor boss (2) engaged with a crankshaft (1) with a rotor core (3) engaged with the outer circumference of the rotor boss. A stator core (18) is provided around the outer circumference of the rotor core (3) with a bus ring (25) opposed to one end surface of the rotor core (3). The outer circumference of the bus ring (25) is engaged with a plurality of insulating components (20) surrounding the teeth. A rotation angle detection sensor (37) of the rotor boss (2) is configured opposite to a sensor magnet (10) in front of the rotor boss (2). The stator core (18) has a split structure. Each stator core block (19) is fixed to a generator cover (23) by a bolt. The generator cover (23) is fixed to the outer surface of a crankcase. The rotor core (3) is formed with a plurality of holes (6) for respectively supporting a plurality of rotor magnets (5). The bus ring (25) includes a plurality of terminals (26) and grommets (27-29) connected through bus bars (25a) to the terminals.

This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

Provided are a piezoelectric thin film including a lead-free ferroelectric material and exhibiting high piezoelectric performance comparable to that of lead zirconate titanate (PZT), and a method of manufacturing the piezoelectric thin film. The piezoelectric thin film of the present invention includes: a LaNiO3 film having a (001) orientation; an interface layer having a (001) orientation and composed of a compound represented by a chemical formula ABO3 (where A is represented by (Bi,Na)1-xCx (0≦x≦1), B is Ti or TiZr, and C is an alkali metal other than Na); and a (Bi,Na,Ba)TiO3 film having a (001) orientation. The LaNiO3 film, the interface layer, and the (Bi,Na,Ba)TiO3 film are laminated in this order.

The invention discloses a field installation method for a vertical-shaft wind-driven generator. The method comprises the following steps of: (1) constructing a bottom base of a central tower column; (2) constructing a reinforced concrete central tower column on the bottom base; (3) installing a crane on the top of the central tower column; and (4) constituting a generating unit by using each installation platform, a generator, a wind wheel and generating equipment, and hoisting all generating units from top to bottom in sequence by using the crane. Each generating unit is hoisted by using the crane according to the following steps of: (a) hoisting a blade onto the central tower column; (b) hoisting a shaft coupling onto the central tower column and connecting with the wind wheel; (c) hoisting a main gear onto the central tower column and connecting with the shaft coupling; and (d) hoisting the generator and the generating equipment onto the installation platform, and meshing the generator with the main gear through a gear transmission system. Due to the adoption of the method, the vertical-shaft wind-driven generator is convenient to install and debug, the installation period is short, and the installation cost is low.

The invention discloses a portable Fresnel-lens solar automatic-tracking power generating and heating dual-purpose device, belonging to the field of solar utilization devices. A Fresnel lens (2) is detachably arranged on a support (1) which is fixedly arranged on a two-dimensional real-time automatic tracking device (3), a heat concentrating functional entity (6) located near a focus part of the Fresnel leans (2) is also provided, one side of the heat concentrating functional entity (6) is provided with a photovoltaic battery board (7), the other side of the heat concentrating functional entity (6) is provided with a holophote (8), the heat concentrating functional entity (6) is arranged on a functional conversion shaft (5) located on the support (1), the functional conversion shaft (5) can be rotated to realize the mutual conversion between power generation and heat concentration, a bearing frame (10) is additionally arranged on the support (1) and is provided with a heated body (9) which is bound to be located in an optical path of sunlight reflected by the holophote (8). The device has the dual functions of power generating and heating which can be converted conveniently, thereby facilitating the utilization of solar energy and improving the sufficient and effective application of solar energy; and moreover, the device has small size and light weight, and is convenient to carry and particularly suitable for field battle troops.

The invention relates to the technical field of vehicle speed monitoring equipment, and discloses a highway speed measuring device which is convenient to install, comprising a support plate. The middle portion of the top end of the support plate is welded to the bottom end of a support rod. The top of one side of the support rod is fixedly connected to one side of a motor bracket. The top end of the motor bracket is threadably connected to a bottom plate of a drive motor. According to the highway measuring device convenient to install, the support frame can be driven to rotate rapidly, and theposition of the support table can be moved to an edge zone through the cooperation of the drive motor, the transmission gear I, the transmission gear II and the transmission screw, and the setting ofthe support frame and the support table, thereby facilitating better installation and maintenance of the speed camera. Therefore, the problem that the lifting device is required to be placed in the middle of the highway when installing or maintaining the speed camera, causing a great potential safety hazard is solved, and the safety and convenience of the speed device during installation and maintenance are improved.

This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an induction motor generator. One embodiment of the disclosure refers to systems and methods for reducing loads on a bearing in a transient energy system. In another embodiment, the disclosure refers to an induction motor generator that is optimized for high power transient power generation, yet low power motor operation. Yet another embodiment of the disclosure refers to using a flywheel as a drag pump to cool components of a transient energy system. In yet another embodiment, a slip control scheme is discussed for regulating a DC bus. In yet a further embodiment of the disclosure a method is provided for reducing unnecessary turbine starts by making turbine start a function of the rotational velocity of a flywheel.

The invention relates to a series-parallel hybrid power tractor power system and a control method of the power system. The power system comprises an engine, a first motor, a second motor and a planetary gear mechanism. The planetary gear mechanism is provided with three connecting ends for inputting and outputting power; an output shaft of the engine is connected with the first motor; an output shaft of the first motor is connected with the first connecting end of the planetary gear mechanism; the second motor is connected with the second connecting end of the planetary gear mechanism; the third connecting end of the planetary gear mechanism is used for being connected with a driving axle; the first connecting end and the third connecting end are coaxial. The driving system is unique in power configuration, and according to the control method, the working state is determined by detecting running parameters of a tractor; according to the working state, the driving system is controlled, and the series-parallel hybrid power tractor power system meets various working mode requirements of a hybrid power tractor

The invention belongs to the photovoltaic power generation field, provides a photovoltaic power generation device capable of accommodating a battery panel and solves a problem that a photovoltaic power generation device in the prior art is inconvenient to store the battery panel which is exposed outdoors in any weather, such as rain, snow, hail and the like and is easily damaged. The power generation device includes a mounting base plate, wherein the top of the mounting base plate is provided with a receiving groove, the receiving groove is internally movably equipped with a bearing plate, thetop of the bearing plate is rotatably equipped with a rotation plate, the top of the rotation plate is fixedly equipped with a fixing block, the fixing block is rotatably equipped with a connection plate, and the top of the connection plate is fixedly equipped with the battery panel. The power generation device is advantaged in that the battery panel can be accommodated and can be prevented frombeing damaged in the severe weather, when the battery panel is in operation, the battery panel can be made to be perpendicular to the sunlight, the better power generation is realized, the structure is simple, and the power generation device is convenient to use.

The invention discloses an automobile tail gas waste heat recycling positive and inverse combined cycle cold and hot electricity self-coupling system. System elements comprise a working medium evaporator, a heating preheater, a working medium pump, a condenser, a draught fan, an expanding machine, an electricity generator, a storage battery, a compressor, a throttle valve, an evaporator, a relay, a first stop valve, a second stop valve, a third stop valve and a fourth stop valve. An automobile tail gas waste heat recycling ORC electricity generation loop, an automobile tail gas utilization loop, an electric power storage driving loop, a winter air heating loop and a summer air conditioning refrigerating loop are formed by the elements. The system has the beneficial effects that through the cold and heat electricity self-coupling system, gradient utilization and system integration of automobile tail gas waste heat are achieved, multiple coupling modes can be achieved according to working conditions of different seasons, the poor conditions that an existing automobile air conditioner cannot stably work, and refrigerating and heating intermittency is insufficient are overcome, the requirement of a driver and passengers for refrigerating and heating comfort can be met well, and the good practicability is achieved.

The invention discloses a wave motor of a pinion-and-rack-type oversea floating platform. The wave motor comprises at least two groups of wave energy transmission units; each group of wave energy transmission unit comprises a square floating cylinder and a square guide rod, wherein the square floating cylinder is made of a stainless steel material; the square guide rod is fixedly arranged at the central part of the top surface of the square floating cylinder; two opposite side surfaces of the square guide rod are both provided with guide rails; the guide rails are in sliding fit with a guide groove which is suspended out of the edge of the oversea floating platform; the other side surface of the square guide rod is provided with a gear rack; the gear rack is meshed with a transmission gear; and the transmission gear is internally provided with an overrunning clutch which is installed on a motive power output shaft on the oversea platform. The wave motor provided by the invention has the advantages of simple structure, good anti-corrosion performance, good stability of a transmission mechanism, high transmission efficiency and low cost, and is convenient to maintain.

The invention relates to a power generation device, in particular to a hybrid new energy power generation device comprising a mounting base. A swinging lifting frame is arranged on the top of the mounting base. The front end of the swinging lifting frame is movably connected with the mounting base through a rotating shaft. A solar module is arranged in the frame of the swinging lifting frame. A first wind power generation module is arranged on the frame on the rear side of the solar module. The rear end of the mounting base is provided with a first driving device connected with the swinging lifting frame. A second wind power generation module is movably arranged at the bottom of the swinging lifting frame. An energy storage device is arranged in the top concave chamber of the mounting base. The hybrid new energy power generation device is simple in structure, reasonable in design, and convenient to operate, operates in a mode where a variety of power generation ways are mixed, has high working efficiency, can guarantee normal power generation throughout the day, has stable working performance, reduces dependence on local climate conditions, and meets people's use conditions.

The invention belongs to the technical field of combined heat and power generation for heating and relates to a heat storage plate type heat exchanger. 13-20 heat storage type heat exchange plates arelocated and closely arranged between a fixed compression plate and a movable compression plate through guide rods. Each sealing pad is arranged between the corresponding two adjacent heat storage type heat exchange plates. Every two adjacent sealing pads are placed in opposite directions. The heat storage type heat exchange plates are tightly pressed through compression threaded rods, so that theheat storage plate type heat exchanger is formed. Each heat storage type heat exchange plate is provided with a plate type cavity, wherein a phase change heat storage material is encapsulated in eachplate type cavity. By means of phase change latent heat of the phase change material, the plate type heat exchanger has the heat storage capability. When a combined heat and power generation unit participates into load peak shaving of an electric network, the phase change heat storage material mainly stores or releases heat in the form of the phase change latent heat, and the heat storage plate type heat exchanger can achieve the effect of heating load adjustment. By means of the heat storage plate type heat exchanger, the load peak shaving capability of the combined heat and power generationunit during the heating period is enhanced; the grid connection space of new energy power generation is expanded; and the heat storage plate type heat exchanger is suitable for participating into thecombined heat and power generation unit for electrical load peak shaving.

The invention discloses a surfboard, and belongs to the field of outdoor sports equipment. The surfboard is composed of a caudal fin, a micro power generation module, a surfboard body, a storage battery, a controller, a positioning module, a protection plate, LED lamps and solar panels. The micro power generation module consists of a blade, a speed-up machine and a micro-generator. When the surfboard is lost in the sea due to waves, the positioning module allows recovery staff to quickly determine the location of the surfboard, and the recovery rate at night can be enhanced by the light of theLED lamps.

The invention relates to a self-sustained synergistic reaction tank for continuous photocatalysis conversion of pollutants and CO2 and a preparing method thereof, and belongs to the fields of environment protection, new energy and related fields. According to the reaction tank and the method, waste is treated and CO2 is converted synergistically by solar energy to generate electricity and prepare high-value chemical products. The technical problem to be overcome by the reaction tank and the method is to convert CO2 and pollutants only by solar energy and to improve social and economic benefit for pollutant treatment. According to a technical scheme, a photo-anode is adopted to oxidize and degrade the pollutants in an anode chamber, electrons generated in the oxidation process are utilized to promote CO2 conversion in a cathode chamber, the anode chamber and the cathode chamber are separated by a separating membrane, and the chemical potential difference between the two chambers is adjusted by controlling solutions in the anode chamber and the cathode chamber to allow the potential difference to make up insufficient of photovoltage and to meet energy requirements for running of the synergistic reaction tank, thus achieving self-sustained continuous running. According to the synergistic reaction tank and the method, the photocatalytic reaction efficiency in the anode chamber is high, the structure is simple, operability is high, and the synergistic reaction tank and the method are suitable for occasions where pollutants and CO2 are subjected to light coupling treatment for a long term.

The invention relates to a constant voltage coreless disc type wind-driven generator, which comprises shells, a fixed shaft arranged on the shell and N coreless windings of coreless generator connected with the fixed shaft. The interior walls of an upper shell and a lower shell are fixed to upper and lower magnetic yokes as well as upper and lower magnetic steels, respectively; and the fixed shaft and the windings are encapsulated and cured together by means of unsaturated polyester dough molding compounds (DMC). The constant voltage coreless disc type wind-driven generator capable of being started to generate electric power in the state of slight wind is formed by sampling the voltage of the windings of the generator, performing combined switching control to the voltages of windings and outputting constant voltage in the alternating current stabilized circuit. The constant voltage coreless disc type wind-driven generator has advantages of high efficiency, small volume, light weight, stable output voltage, high space utility rate and good overall performance.

The invention discloses a wind power generation principle and a facility of a tower type jet injector, belonging to the technical field of wind power generation facility machining. The wind power generation principle and the facility are technically characterized in that a flange on an upright post for supporting a wind collecting plate and a flange on an arc pipe for supporting and fixing a jet injector generator set are used for connection and fixation; a plurality of arc slop cones of the jet injector generator set are connected together in such a way that one is sleeved on another to form a tower type jet injector wind power generator set; airflow in the horizontal direction is changed through each level of arc slop cone to upwards form continuous wind power; and the wind power drives a turbine on a generator mounted in the cone to rotate so as to generate electricity. The invention can be conveniently mounted on prior resources such as roofs, overhead advertising boards, trident building bodies, saves occupation space, reduces the investment cost, improves the wind energy efficiency and provides a product design for solving the sustainable development problem of energy shortage and environment pollution, to which attention is paid all over the world.

The invention discloses an intelligent traffic lamp with an anti-collision upright post, and belongs to the technical field of the traffic lamp. The intelligent traffic lamp comprises a light pole, and two groups of fixing rings are arranged at the outer wall of the bottom part of the light pole at intervals; the outer walls of the fixing rings are provided with elastic buffer rods, the other endsof the elastic buffer rods are provided with limiting ring plates; a rotary shaft is arranged between two groups of limiting ring plates, and the outer wall of the rotary shaft is provided with an anti-collision buffer cylinder; the outer wall in the middle part of the light pole is provided with a traffic light control box, the outer wall at the top part of the light pole is provided with a traffic indicating lamp, the top part of the traffic indicating lamp is provided with a rain shed; the top part of the rain shed is provided with a solar panel bracket, the top part of the solar panel bracket is provided with a solar panel; the bottom part of the solar panel is provided with a storage battery; the device is simple in structure; by using an anti-collision buffer cylinder and an elasticbuffer rod, the influence of damaged light pole on the traffic order caused by the automobile collision is avoided.

The invention discloses a solar energy and wind force combined type power generating device for ships, and relates to the technical field of new energy. The solar energy and wind force combined type power generating device comprises a base plate, a first supporting rod and an electric sliding block. A group of sliding grooves is formed in the lateral circumference face of the first supporting rod.The electric sliding block is in sliding-fit with the first supporting rod. A group of sliding blocks is fixed to the inner wall of the electric sliding block. The sliding blocks are in sliding-fit with the sliding grooves. A plurality of first groove holes are formed in the surface of the electric sliding block. The inner walls of the first groove holes are rotatably connected with third connecting rods by rotating shafts. Through fixing plates, the solar energy and wind force combined type power generating device the ships can be fixed to a ship clamping plate. Through controlling a first motor, the first supporting rod rotates, and further a second motor is controlled to drive the power generating device to rotate, and therefore fan blades always face the wind direction, and the powergenerating effect can be optimized. Through controlling the electric sliding block to slide along the surface of the first supporting rod, the function of being foldable and retractable of a solar energy power generating panel can be achieved.