129results about How to "Meet power needs" patented technology

The invention relates to the technical field of power generation prediction data processing, and discloses a photovoltaic power station power generation prediction method based on multi-model fusion, which combines a photovoltaic physical model, a power generation statistical model and a power generation prediction model, not only considers a physical rule, but also combines statistical learning and machine learning to improve the stability and accuracy of prediction, and improves the prediction efficiency. And predicting the generating capacity of the photovoltaic power station by using environmental meteorological data, electrical parameters of the photovoltaic power station and historical power generation data. Accurate photovoltaic power generation power prediction is beneficial to better arrangement of power generation plans and resource scheduling of the power grid. The prediction precision and stability are improved through multi-model fusion, so that power grid dispatching is more accurate and efficient, and power grid instability factors caused by photovoltaic power generation fluctuation are reduced. Therefore, photovoltaic power generation can be connected to a power grid more stably, the power demand is met, and wide application and development of clean energy are promoted.

The invention discloses a shipborne thermochemical energy storage system suitable for offshore wind power, relates to the technical field of offshore power generation and energy storage, and solves the problems of high operation and maintenance cost in the application of a traditional power transmission line transmission mode in offshore wind power generation. An electric heating device is used for heating a calcium-based thermochemical energy storage material, then energy storage operation is completed, energy storage particles are subjected to waste heat recovery and cooling after the energy storage process is completed, then are stored in a storage tank in a centralized mode and are transported to the land in a shipping mode for secondary power generation, and the particles obtained after energy release are transported to an offshore power generation platform for recycling. The calcium-based thermochemical energy storage material modified by the high-entropy fluorite oxide has high energy density and high cycle stability, so that efficient energy consumption is realized, and the wind and electricity abandoning rate is reduced. The thermal chemical energy storage technology is introduced into an existing offshore wind power system, a new application neighborhood is developed for thermal chemical energy storage, and a new thought is provided for solving the problems of energy consumption and transportation of offshore wind power.

The invention relates to the technical field of photovoltaic inversion, in particular to a high-permeability photovoltaic inversion system indifference control method based on model predictive control. The method comprises the following steps: S1, establishing a comprehensive mathematical model of the photovoltaic inverter system; s2, designing a model prediction control strategy based on a discretization prediction model, and predicting the future state of the system; s3, setting a cost function and constraint conditions, and solving optimal control input by adopting an optimization algorithm; s4, applying control input and adjusting the system; and S5, analyzing the stability of the whole control system. According to the design, the state change of the photovoltaic inverter system in a period of time in the future is predicted in real time, the optimal control input sequence of the minimum cost function is solved through an optimization algorithm, and the photovoltaic inverter system is optimized through detailed modeling of key components such as a photovoltaic array, a direct-current link and an inverter. The system parameters can be automatically adjusted under different environment conditions such as illumination intensity, temperature and wind speed.

The utility model provides a hybrid power system, a four-wheel-drive hybrid power system and a vehicle, and relates to the technical field of automobile parts. The hybrid power system comprises a first motor, a battery electrically connected with the first motor, an engine, a first synchronizer, a second synchronizer and a first differential mechanism. The first motor comprises a first motor shaft and a first motor gear arranged on the first motor shaft in series. The engine comprises an engine output shaft; the first motor shaft and the engine output shaft are coaxially arranged, and the first motor shaft is in power coupling or power separation with the engine output shaft through the first synchronizer; the first motor gear is in power coupling or power separation with the first differential mechanism through the second synchronizer. Power coupling or power separation between different structures is achieved through the first synchronizer and the second synchronizer, power requirements under different working conditions are met, meanwhile, the advantages of being simple in structure, small in size and weight, low in transmission loss and the like are achieved, and the efficiency of a hybrid power system can be improved.

The invention provides a method and a device for controlling the output power of a hydrogen fuel cell, relates to the technical field of fuel cells, and mainly aims to improve the output power of the hydrogen fuel cell. According to the main technical scheme, a power adjusting instruction of the hydrogen fuel cell is obtained, wherein the power adjusting instruction is used for adjusting the output power of the cell when the vehicle is in the plateau environment; environment parameters and required power of vehicle driving are collected according to the power adjusting instruction; calculating a target air flow by using the environmental parameters, the required power and a preset air flow model; and adjusting the air compressor according to the target air flow so as to control the output power of the hydrogen fuel cell to meet the required power. The invention is used for controlling the output power of the hydrogen fuel cell to meet the required power.

The utility model provides a power supply circuit, a power supply system and a charging pile. The power supply circuit comprises N power modules and N power output ends, wherein N is greater than or equal to 4; the power output ends are in one-to-one correspondence with the power modules, and the power output ends are electrically connected with the corresponding power modules through the electric connecting pieces; wherein one electric connecting piece is connected with at least one other electric connecting piece through the switch element; the number of the switching elements is M, and the # imgabs 0 # imgabs 1 # switching elements are configured to be switched on or off through the switching elements. The control module is used for controlling the power modules to which the two electric connecting pieces connected with the control module belong to output electric power to the same power output end or controlling the power modules to which the two electric connecting pieces connected with the control module belong to respectively output electric power to respective corresponding power output ends; the power output end is configured to output electric power to electric equipment. According to the power supply circuit, the number of the switch elements is limited to be # imgabs2, so that the performance and the cost of the power supply circuit provided by the embodiment of the utility model are more balanced.

The utility model provides a program burning carrier. The program burning carrier comprises a box body, wherein the top of the box body is open; a plurality of spring probes are arranged on the part, outside the box body, of the bottom plate, penetrate through the bottom plate of the box body and extend into the bottom plate; an internal PCBA board slot connector is arranged in the box body, an internal PCBA board is installed in the internal PCBA board slot connector, and the internal PCBA board is connected with an external power supply; the spring probe is electrically connected with the internal PCBA board slot connector; a side plate of the box body is provided with a plurality of adapters, and the adapters are electrically connected with the internal PCBA board slot connector; and a board card to be burnt is arranged at the top of the box body and is electrically connected with the internal PCBA board. According to the PCBA board card program programming carrier, the board card chip program programming carrier is unified, various simulators and wire harnesses can be connected through the adapters, the problem that the simulators and the wire harnesses are switched for multiple times is solved, and the PCBA board card chip program programming efficiency is improved.

The utility model discloses a mountain gravity energy storage system which comprises a water pumping system, a gravity conveying system and an energy storage assembly. The water pumping system comprises a first reservoir, a second reservoir and a first reversible unit. The first reservoir and the second reservoir are communicated through a first auxiliary pool, a connecting pipeline and a second auxiliary pool. The gravity conveying system comprises a conveying rail used for bearing a gravity block, a first storage bin and a second storage bin. The gravity conveying system further comprises a second reversible unit, the second reversible unit drives the gravity block to ascend in the driving mode, and the second reversible unit generates power through the descending potential energy of the gravity block in the power generation mode. By arranging the water pumping system and the gravity conveying system, in the electricity trough period, it is guaranteed that the mountain gravity energy storage system can fully utilize electric energy and conduct gravity energy storage; and in the peak period of power utilization, the first reversible unit and the second reversible unit are driven to generate power, so that the power supply requirement is met, and the stability and the energy storage efficiency of the mountain gravity energy storage system are guaranteed.

The invention discloses a power equipment control method based on the Internet of Things, and relates to the technical field of the Internet of Things, which comprises the following steps of: forming a mesh topology structure by power equipment and various sensors, and connecting the power equipment with different communication protocols with an Internet of Things network through middleware, the power equipment is automatically controlled by using a preset control strategy and algorithm, and encryption is performed by using a symmetric encryption algorithm when data communication is performed, and the method has the advantages that the power equipment is connected with the Internet of Things, so that real-time state monitoring can be performed on the power equipment, including operation parameters of the equipment, operation parameters of the equipment and the like. According to the system, the equipment information can be remotely acquired through the Internet of Things platform, such as voltage, current, power, temperature and working state, no matter where the equipment is located, a manager can remotely acquire the equipment information through the Internet of Things platform and carry out remote control operation, such as remote start-stop and parameter adjustment, so that the workload and time cost of manual field inspection are reduced, and the timeliness and convenience of management are improved.

The utility model discloses a new energy vehicle power supply circuit system which comprises a high-voltage inverter, the input end of the high-voltage inverter is connected with an original vehicle 220V socket, and the output end of the high-voltage inverter is connected with the input end of a CDU power distribution system. The output end of the high-voltage inverter is connected with the input end of the DC-DC inverter and one end of the double-storage-battery isolator, the output end of the DC-DC inverter is connected with an air conditioner equipment circuit, and the other end of the double-storage-battery isolator is connected with the input end of the additionally-installed auxiliary battery pack and the input end of the ACC power line switch. The output end of the additional auxiliary battery pack is grounded, and the output end of the ACC power line switch is connected with power supply equipment in a vehicle. Different from a common mode of taking electricity from a main storage battery 12 / 24V low voltage of an engine compartment, the circuit takes electricity from an original 220V high-voltage circuit of a new energy automobile chassis and converts 12V low voltage to supply electricity to an auxiliary storage battery and equipment in the automobile, the equipment in the automobile can be supplied with electricity more adaptively and stably, and the power supply requirement of the equipment in the automobile can be met as much as possible.

The application discloses a kind of automobile emergency starting power supply based on lithium iron phosphate battery, it is related to automobile emergency technical field, including automobile power module, for with automobile power connection;Emergency power supply module is used for power failure detection and emergency power supply control;First battery module, with the second battery module parallel power supply, and when voltage detection module detects low voltage, with the second battery module series power supply;Voltage detection module is used for low voltage detection to first battery module;Temperature detection module is used for low temperature detection when emergency power supply;Trigger control module is used for controlling first battery module and second battery module series when low temperature low voltage;High voltage control module is used for high voltage detection and control trigger control module stop working.The application based on lithium iron phosphate battery automobile emergency starting power supply can control the connection mode of lithium iron phosphate battery pack when low temperature low voltage, to meet the emergency power supply demand, improve power supply efficiency.

The invention provides a display device and a negative voltage adjusting circuit, and belongs to the technical field of display driving. The display device includes a gate drive circuit and a negative voltage adjustment circuit. The gate driving circuit comprises a first transistor and a second transistor. The first transistor is used for accessing a first negative voltage signal. The second transistor is used for accessing a second negative voltage signal. The negative voltage adjusting circuit comprises a clamping sub-circuit and a controllable semiconductor device. The clamping sub-circuit is used for accessing a first negative voltage signal and establishing a clamping voltage according to the first negative voltage signal. And the controllable semiconductor device is connected with the clamping sub-circuit and the gate driving circuit, and is used for outputting a second negative voltage signal to the gate driving circuit according to the first negative voltage signal and the clamping voltage. Therefore, other negative voltage signals required by the gate drive circuit can be obtained by converting the first negative voltage signal, so that the negative voltage power supply requirement of the gate drive circuit can be met by only outputting one path of first negative voltage signal by the power management chip, and the flexibility of circuit configuration can be improved.

The invention discloses an energy underground structure energy supply system based on photovoltaic waste heat and an installation method, the energy underground structure energy supply system comprises a ground source heat pump system, a photovoltaic system, an energy storage system and an intelligent direct current power distribution system, and the ground source heat pump system and electric equipment are connected to the intelligent direct current power distribution system through a voltage adapter; the photovoltaic system and the energy storage system are connected into the intelligent direct-current power distribution system through the photovoltaic converter and the energy storage converter respectively, and the ground source heat pump system is divided into a heat pump unit branch, a heat storage box branch and an underground energy structure branch which are connected through the water collecting and distributing device. According to the ground source heat pump energy supply system based on photovoltaic waste heat and the installation method, the ground source heat pump system and the solar photovoltaic system are combined, the photovoltaic system meets the power requirement of a building, the ground source heat pump system achieves stable heat supply and refrigeration, the intelligent direct-current power distribution system is adopted, the intelligent direct-current power distribution system is arranged, and the energy supply efficiency is improved. Flexible interaction of the electric equipment is achieved, and energy consumption is remarkably reduced.

The invention relates to the technical field of plateau field safeguard equipment, in particular to a plateau type multifunctional integrated service safeguard cabin, and solves the problems that existing safeguard equipment is difficult in energy supply in a plateau environment, poor in environmental adaptability, single in function and incapable of meeting comprehensive requirements of personnel life, equipment power supply, communication support and the like in scenes such as emergency rescue and field operation. A plateau type multi-energy integrated service guarantee cabin comprises a guarantee cabin body, a heightened base and an energy, intelligent management, environment regulation and control, water purification, unmanned aerial vehicle service and value-added service extension system. The cabin body is made of high-density polyurethane heat insulation plates, a PLC control module, an inverter and an energy system are arranged to achieve light and wind storage and power supply, and all the systems are linked with a PLC as the core. According to the invention, the PLC control module is used as a core for linkage work of all the systems, energy self-sufficiency, intelligent management and control, environment adaptation and multiple services in the plateau environment are realized, logistics guarantee of continuous field operation of multiple persons can be met, and the safety and convenience of field operation are improved.

The present invention discloses a method for dynamic economic and emission optimization scheduling in combination with a plug-in vehicle power generation unit, which belongs to the field of microgrid scheduling and includes the following steps: using the power demand in each time period and the number of plug-in vehicles that can be connected to the power grid as input parameters of the model; constructing a power generation unit optimization scheduling model; using a peak shaving and valley filling algorithm to allocate the charging and discharging of plug-in vehicles, and reasonably allocating the charging and discharging behaviors of plug-in vehicles to different time periods according to the power demand during peak and valley periods; using a multi-objective genetic algorithm to optimize the power generation of the power generation unit; and obtaining the power generation of the power generation unit at each moment and the number of plug-in vehicles connected to the power grid through optimization and solution. The present invention can effectively balance the power load and significantly improve the safety and stability of the power grid operation by coordinating the charging and discharging behaviors of plug-in vehicles with power generation units, discharging plug-in vehicles during peak periods and charging during valley periods through the coordinated scheduling of the charging and discharging behaviors of plug-in vehicles and power generation units.

The utility model discloses a docking station and an electronic device, the docking station provided by the utility model comprises a main circuit board and an adapter power supply, and the adapter power supply is electrically connected with the main circuit board. Wherein the main circuit board comprises a first circuit and a second circuit, the input end of the first circuit and the input end of the second circuit are both connected with the adapter power supply, and then the first circuit receives power supply voltage of the adapter power supply and outputs first voltage; the second circuit receives the power supply voltage of the adapter power supply and outputs a second voltage, and the first voltage is greater than the second voltage. The adapter power supply is integrated with the main circuit board, so that the space occupied by the adapter power supply independently is reduced, the tidiness of a desktop is improved, and the use experience of a user on the docking station is improved. And the adapter power supply uses the first circuit and the second circuit to output voltages with different voltage values at one time, so that the power supply requirement of the docking station on the electric device is met, the docking station does not need to convert the voltage for the second time, and the conversion efficiency of the power supply voltage is improved.

The application discloses a power distribution network power supply scheme optimization management method and system based on dynamic sensing, and belongs to the technical field of power supply management. The system comprises a dynamic sensing module, a power distribution analysis module, a power supply optimization module and an execution management module; the dynamic sensing module is used for collecting GIS maps and power consumption data, and operation parameters and environmental parameters of all power supply objects; a three-dimensional scene is built and dynamically mapped; the power distribution analysis module divides and identifies domains according to the relative positions of the power supply objects in the three-dimensional scene, constructs three-dimensional air flow fields for the respective domains and predicts future wind field data, and fits power relationship formulas for the power supply objects; the power supply optimization module fits power consumption curves through the power consumption data, constructs power generation reference curves in combination with the future wind field data and the power relationship formulas; different power generation strategies are established and schemes are randomly built, the stability indexes of the schemes are calculated to set the power supply scheme; and the execution management module adjusts according to the power supply scheme and records the operation parameters and the environmental parameters.

The invention discloses a light storage multifunctional emergency power supply vehicle, and relates to the technical field of transportation devices. The method comprises the following steps: 1, designing and acting an internal structure of the light-storage multifunctional emergency power supply vehicle; 2, the emergency power supply vehicle is connected into the wind and light energy storage system, the power supply vehicle and wind and light power generation form a local original network nuclear storage system, light energy and wind energy are used for energy storage through a storage battery, grid-connected operation is carried out, and the charging and discharging states are kept in the aspect of operation; 3, after receiving a power protection task, disassembling the emergency power supply vehicle and the energy storage part of the movable part from the photovoltaic power generation system, transporting to a power protection site, and connecting the commercial power and a load needing power protection to carry out the power protection task; the system is high in adaptability, can meet the power requirements of various emergency occasions, and particularly can quickly respond to emergencies or natural disasters.

This application discloses a rodless pump-based surface power equipment for underground drainage and gas extraction, belonging to the technical field of underground drainage and gas extraction equipment. It includes: a conveying device for pumping power fluid; a drainage control valve, including a valve adjusting component and a valve body with a power fluid inlet, a power fluid outlet, a power fluid exchange port, and a power fluid return port. The power fluid inlet is connected to the conveying device, the power fluid outlet is connected to a pipeline injected into the formation, the power fluid exchange port is used to export a portion of the power fluid and allow it to return, and performs work on another portion of the power fluid exported through the power fluid outlet during the export process; the power fluid return port is used to return the power fluid to its source; and a driving device for actuating the valve adjusting component. When the driving device actuates the valve adjusting component, the valve adjusting component can connect the power fluid inlet to the power fluid outlet and the power fluid exchange port, or only connect the power fluid inlet to the power fluid exchange port, or connect the power fluid inlet to the power fluid outlet, the power fluid exchange port, and the power fluid return port.

The utility model provides a graphitization production system. The graphitization production system comprises a base, a first graphitization furnace, a second graphitization furnace, a first copper-aluminum bar, a second copper-aluminum bar and a third copper-aluminum bar, the plurality of first graphitization furnaces and the plurality of second graphitization furnaces are respectively arranged on the two sides of the X direction of the foundation; the first copper-aluminum bar, the second copper-aluminum bar and the third copper-aluminum bar are arranged on the two sides of the foundation in the Y direction respectively, and the multiple first graphitization furnaces and the multiple second graphitization furnaces are connected to the first copper-aluminum bar in parallel; the plurality of first graphitization furnaces are respectively connected in parallel to the second copper-aluminum bar through a first switch; the plurality of second graphitization furnaces are respectively connected in parallel to the third copper-aluminum bar through a second switch; the second copper-aluminum bar and the third copper-aluminum bar are connected through a third switch; the second copper aluminum bar is connected with a first transformer, and the third copper aluminum bar is connected with a second transformer. The capacity of the transformer can be fully utilized, and the equipment investment cost is reduced.

The present disclosure relates to a method of resisting degradation of a fuel cell system of a vehicle. The method is performed using a processor device. The processor device estimates a stationary average power demand of the vehicle by estimating an average power that the vehicle will consume during a predetermined period of time during which the vehicle will be stationary. Idle power that may be extracted from the fuel cell system is determined. The idle power is compared to the estimated stationary average power demand. Based on the comparison, a duration during which the fuel cell system should remain on to meet the estimated stationary average power demand is determined. The fuel cell system is controlled to remain on for the predetermined duration.

The utility model relates to a battery pop-up device based on a lateral battery replacement new energy vehicle, and belongs to the technical field of new energy vehicle batteries. Comprising a pop-up mechanism, the pop-up mechanism comprises a gas generator, the new energy vehicle is provided with a battery bin, one end of a bin frame of the battery bin is provided with a bin inlet and outlet, the other end of the bin frame is provided with a bin end cover, and the gas generator is arranged on the bin end cover. When the battery is inserted in place in the battery bin, a closed space can be formed between the inner end of the battery and the battery bin, and gas generated by combustion of a gas generating agent in the gas generator can act on the inner end of the battery to push the battery out of the battery bin. The gas generator is simple in structure and convenient to operate, when the battery is abnormal, the gas generator can instantly generate a large amount of gas, the battery can obtain enough kinetic energy, the battery is separated from the new energy vehicle, the risk that the battery explodes or burns on the new energy vehicle is eliminated, and therefore the personal and property safety of passengers is guaranteed.

The embodiment of the application relates to the technical field of intelligent charging, and particularly relates to a power distribution method and device based on a charging station and a storage medium, the method comprising: when a to-be-charged vehicle joins the charging station, performing power detection to determine a target charging power, and moving the to-be-charged vehicle to a preset power distribution set, the power distribution set comprising a target vehicle and the target charging power; then, according to user attributes, historical charging conditions and charging start time, determining a charging priority order of the target vehicle in the power distribution set; and finally, according to the charging priority order and the target charging power, sequentially performing power distribution on each target vehicle in the power distribution set. In the method, power detection is first performed to determine the target charging power, and the target charging power can accurately reflect the actual power demand of the vehicle, so that the power distribution result based on the target charging power can effectively improve the energy utilization efficiency of the charging station and avoid power waste.

The invention discloses a direct AC / AC converter model prediction control strategy based on a cuckoo algorithm, and the strategy specifically comprises the steps: S1, selecting a key parameter as a variable, and building a total state-space equation; s2, discretizing the state-space equation of the AC / AC converter, which is finally obtained in the step S1, and calculating a discrete prediction equation of the AC / AC converter, which is predicted at the moment k, within p moments in the future; s3, an objective function is defined according to performance requirements, constraint conditions are given, the discrete prediction equation obtained in the step S2 is substituted into the objective function and simplified, and finally the simplified objective function and constraint conditions are obtained; and S4, carrying out optimization solution on the simplified target function. According to the strategy, the optimal modulation ratio can be obtained, the AC / AC converter works in the optimal state, and the power supply requirement of a power distribution network is met.

The present invention discloses a method and system for controlling power supply of optical fiber communication, which relates to the technical field of power control and power supply. The method and system solve the problems of high risk of power supply interruption, insufficient energy consumption management and lack of real-time fault warning by cooperating with a power supply path identification module, a load distribution control module, a fault warning analysis module and a comprehensive evaluation control module. The method collects node voltage-related data and load current-related data by using distributed sensors, calculates and evaluates the path stability index Lwd, divides the power supply interruption risk level, and starts backup power supply or isolates high-risk nodes when high risk is detected. The load distribution control module calculates the load balancing coefficient Lhp and dynamically adjusts the power transmission ratio to optimize energy utilization. Meanwhile, the fault coupling influence factor Efi is calculated and dynamically evaluated by the fault warning analysis module, and finally the power distribution strategy and the backup power supply mode are adjusted to effectively improve the stability and reliability of the optical fiber communication power supply system.