32results about How to "Increase available power" patented technology

The invention relates to a method for managing battery modules of an energy storage power station of a power grid, and belongs to the technical field of energy storage systems of power grids. The method includes transmitting data sampling requests to single battery management units, starting analog quantity sampling functions of battery module managing units, acquiring initial state data of batteries and processing the initial state data of the batteries and history state data to obtain real-time state data; diagnosing faults according to the real-time state data, and computing residual electric quantities of the batteries according to a battery electric quantity estimation algorithm; implementing module balancing and module cooling algorithms according to the real-time state data and the residual electric quantities of the batteries, and outputting start and stop control signals of module balancing devices and module cooling fans; reporting the real-time state data, residual electric quantities of battery sets and states of the module balancing devices and the module cooling fans to top battery management units, updating the history state data and entering a next cycle. The method in an embodiment of the invention has the advantages that the battery modules are effectively managed, the running safety of the energy storage power station is improved, and an economic benefit of the energy storage power station is increased.

The invention provides a fuel cell hybrid power car energy storage system based on elastic energy storage and an energy distribution method and relates to a fuel cell hybrid power car energy storage structure and an energy distribution method. The problems that a cell used in an existing hybrid power car is slow in charging and short in life and meanwhile pollutes environments are solved. According to the fuel cell hybrid power car energy storage system based on elastic energy storage and the energy distribution method, a fuel cell, a super capacitor and an elastic energy storage device are adopted for energy supplement, and the fuel cell adopts the mode of corresponding fuel supplement for charging and has the characteristics that charging is quick, and pollution is avoided; the super capacitor has the characteristics that the power density is high, and the circular life is long, and the defect that the power density of the fuel cell is low is made up; and the elastic energy storage device has been applied to power grid energy storage and has the characteristics that the energy storage capacity is large, pollution is avoided, and the life is long. The fuel cell hybrid power car energy storage system based on elastic energy storage and the energy distribution method are suitable for a power car provided with a composite energy storage system with the elastic energy storage device, the fuel cell and the super capacitor.

A lithium-ion power battery charging device includes a power supply, a lithium-ion power battery, a power supply component and an insulating partition, the power supply is provided with a plurality of constant voltage output terminals; the lithium-ion power battery includes a casing, a copper-aluminum composite board and a plurality of batteries Single unit, the copper-aluminum composite board is provided with a discharge terminal and a plurality of charging terminals, the charging terminal is electrically connected to the battery cell; Pads and multiple conductive patches, the conductive patches are electrically connected to the constant voltage output terminals; multiple separation grooves are opened on the insulating partition, and the contact rods are pierced through the separation grooves, and the power supply is connected to each battery cell through the power supply component. Make each battery cell on the lithium-ion power battery have an independent charging circuit, realize separate charging for the battery elevator, improve charging efficiency, and ensure that each battery cell on the lithium-ion power battery is fully charged and fully discharged, improving the lithium-ion power battery. actual available power.

A method for calibrating the charging and discharging characteristics of a lithium battery, comprising: 1. Charging the lithium battery to be tested with a constant current, when the battery voltage reaches the rated maximum voltage, the charging ends, and according to the calculated electric quantity at the end of the charging, in the formula, t1 is the charging completion Time, i is the charging current, η is the battery efficiency coefficient, where η=ηT×ηt×ηi, ηT is the temperature influence coefficient, ηt is the aging coefficient, and ηi is the charge-discharge rate coefficient. When the lithium battery to be tested is discharged, when the real-time voltage reaches the rated minimum voltage, the discharge ends, and the maximum charge capacity Q2 is obtained according to the calculation. In the formula, i is the discharge current, t2 is the time when the discharge ends, and η is the battery efficiency coefficient. According to Q1 and Q2, the initial state of charge of the battery is calibrated and the charging voltage-SOC function curve is drawn. This calibration method is implemented in the provided charge and discharge characteristic calibration instrument. The calculation result of the method is accurate, and the application range is wide. The provided charging and discharging characteristic calibrating instrument has simple circuit, compact equipment and simple operation.

The invention discloses a wireless charging node capable of monitoring signal strength in real time. The node is mainly composed of a printed circuit board (PCB) antenna, an energy conversion module, a microprocessor module, a signal strength monitoring module, a sensor module and a wireless radio frequency module. The PCB antenna is connected with the energy conversion module which is connected with the microprocessor module through a constant voltage sub-module, the signal strength monitoring module of the microprocessor module monitors the signal strength acquired by the energy conversion module in real time, and the microprocessor module is connected with the signal strength monitoring module and the sensor module through input-output (IO) ports and connected with the wireless radio frequency module through a serial peripheral interface (SPI). The sensor node cannot only perform wireless charging and acquisition and communication of information, but also monitor the signal strength in real time and manage energy. According to the wireless charging node capable of monitoring signal strength in real time, integrated chips are used, so that the product packaging is facilitated. Besides, the energy conversion ratio is high, usable power is large, and the sensor expansibility is good.

The present invention provides a method for controlling a multi-branch power battery system of a hybrid electric locomotive, the control method is based on a multi-branch power battery system, and the power battery system includes a plurality of parallel battery branches, a battery management system, and a battery The traction converters connected in parallel with the branch circuit and the generator set for charging the battery, each battery branch circuit is equipped with an IGBT element; calculated according to the maximum allowable charging current of each branch circuit provided by the battery management system and the charging current of the diesel generator set The target charging current of the battery in the branch is controlled by the traction converter to control the turn-on time of the IGBT element on each branch so as to control the charging current of each battery branch. The control method provided by the invention can effectively improve the safety, performance and service life of the power battery system.

A method and an apparatus for controlling driving power from a powertrain of a motor vehicle comprising a kickdown switch, wherein an activation of the kickdown switch triggers a default action of temporarily requesting an increase of a maximum power available from the powertrain, the method comprising: -recognizing (101) that a speed limiter, setting an upper speed limit for the vehicle speed, isactive, - comparing (102) a current vehicle speed to a predefined speed threshold, which is below the upper speed limit, -if the current vehicle speed is above the speed threshold and the speed limiter is active, triggering (103) an altered action in response to the activation of the kickdown switch.

The invention provides an electric mobile charging vehicle power output system comprising a power-storing battery charging and distribution system for storing electric power and charging an electric vehicle and comprising a power-storing battery, a power-storing battery high-voltage distribution system, a first power supply interface, a charging gun, and a power battery charging and distribution system, wherein the power battery charging and distribution system is used for storing electric power and supplying power to the mobile charging vehicle, and charging the electric vehicle. The invention also provides a mobile charging vehicle including the power-storing battery charging and distribution system and the power battery charging and distribution system. The electric mobile charging vehicle power output system cooperatively uses the power battery of the mobile charging vehicle and the power-storing battery providing the charging service without changing vehicle structure or increasing hardware facilities, thereby greatly improving the service capability of the mobile charging vehicle and greatly improving the power supply capability of the mobile charging vehicle.