15results about How to "Meet power demand" patented technology

The invention provides a hydrogen energy power system suitable for a magnetic suspension railway vehicle. The hydrogen energy power system comprises a hydrogen storage system, a hydrogen fuel cell system, a heat dissipation and cooling system, an air filter, a connector and an electronic control unit (ECU). The hydrogen storage system comprises a hydrogen storage control unit (HSU), the hydrogen fuel cell system comprises a power control unit (PCU), and the ECU is used for collecting and processing state information of each system and sending out a control instruction; the ECU is connected with the PCU and the HSU, and the ECU serves as a main control unit and is responsible for receiving an instruction from a vehicle or a train operator and coordinating work of the PCU and the HSU according to the current running state of the vehicle; and the ECU sends a power demand instruction to the PCU and sends a hydrogen supply instruction to the HSU so as to ensure that the fuel cell can output corresponding power according to needs. The engineering construction cost of the track in the project is reduced, the project construction time is saved, funds are saved, and the method is environment-friendly.

The utility model discloses a shell assembly for a battery pack and the battery pack, the shell assembly for the battery pack comprises a first shell, the first shell comprises a bottom plate and two side plates, the bottom plate extends along a first direction, and the two side plates are both connected with the bottom plate and are respectively located at two ends of the bottom plate in the first direction; the two ends, in the third direction, of the second shell are bent towards one side of the second direction, the second shell covers the first shell, the outer edges of the second shell are connected with the first shell so as to define a containing cavity used for installing the battery cell module, and the two ends, in the third direction, of the bottom plate are flush with the two ends, in the third direction, of the battery cell module; wherein the first direction, the second direction and the third direction are perpendicular to one another. According to the shell assembly for the battery pack, the structure is simple, the reduction of the production cost is facilitated, the space utilization rate of the battery pack can be improved, and the electric quantity requirement of the battery pack is met.

The utility model discloses a battery pack, which comprises a shell assembly, a battery pack and a battery pack, the multiple cross beams are arranged in the containing cavity and are arranged at intervals in the first direction; the battery cell modules are arranged between any two adjacent cross beams, and each battery cell module comprises a first module and a second module which are mutually stacked in a second direction; the first cold plate is arranged in the containing cavity, the first cold plate is located between the first module and the second module and penetrates through the multiple cross beams, and the first direction is perpendicular to the second direction. The battery pack disclosed by the utility model can meet the required electric quantity requirement, and is compact in structure, high in space utilization rate and high in safety.

The invention discloses a green energy power supply device for an electric meter, which comprises an L-shaped mounting plate, an electric meter box and a photovoltaic panel, the L-shaped mounting plate is fixed on a proper object, the electric meter box is fixed on the L-shaped mounting plate, the electric meter box is connected with the photovoltaic panel through a wire, the surface of the electric meter box is provided with a box door through a hinge, and the box door is connected with the photovoltaic panel through a wire. An observation window is arranged in the middle of the box door, a plurality of intelligent electric meters are arranged at the upper end in the electric meter box, and a storage battery is arranged at the lower end. Solar energy or wind energy is converted into electric energy to charge the storage battery, the electric energy is provided for the electricity meter through the storage battery, effective utilization of all generated energy is guaranteed, waste of the generated energy is avoided, meanwhile, the photovoltaic panel and the fan blade plate are unfolded in an X shape, the power generation mode is changed according to different conditions, and the power generation efficiency is improved. The limitation that a power supply device has high requirements for ambient light is overcome, and solar power generation and wind power generation can be freely converted in different sunlight environments.

The utility model discloses a sound box with distributed battery packs, which comprises a sound box casing, a loudspeaker, a first battery pack, a first fixing support, a second battery pack, a second fixing support and a connecting wire, the loudspeaker is mounted in the middle of the sound box casing, the first battery pack is mounted in one end of the sound box casing and fixed through the first fixing support, and the second battery pack is mounted in the other end of the sound box casing through the second fixing support. The second battery pack is installed in the other end of the loudspeaker box shell and fixed through the second fixing support, the first battery pack and the second battery pack are distributed on the two sides of the loudspeaker, one end of the connecting wire is electrically connected with the first battery pack, and the other end of the connecting wire is electrically connected with the second battery pack. According to the utility model, the first battery pack and the second battery pack are distributed at two sides of the loudspeaker in the sound box shell and are fixed through the independent fixing brackets, so that the sound box is suitable for a small-size sound box, the internal space of the sound box shell is effectively utilized, the stacking degree of the battery packs is improved, the battery capacity is greatly improved, and the electric quantity requirement of long-time use of the sound box is met.

The invention relates to a power grid electric quantity distribution method and device, computer equipment, a computer readable storage medium and a computer program product, and the method comprises the steps: obtaining power grid configuration information, determining an electric quantity distribution model according to the power grid configuration information, carrying out the operation solving of the electric quantity distribution model, and determining the electric quantity production index of each power station. And controlling the corresponding power station to supply power according to each electric quantity production index. Wherein the power grid configuration information is obtained based on power stations of a power grid, and the power grid comprises multiple power stations. The model is established according to the power grid configuration information, and the electric quantity production index of each power station is calculated, so that the production capacity of each power station can be coordinated, the transportation loss and energy waste can be reduced, and the power grid operation efficiency can be improved on the basis of meeting the electric energy demand of the power grid.

The utility model provides an energy storage device in a variable pitch system and the variable pitch system. Wherein the energy storage device comprises a super capacitor module and a battery pack; the super-capacitor module and the battery pack are respectively connected with the rectifying circuit; the rectifying circuit is connected with a power grid; the rectifying circuit is further connected with the inverter circuit, and the inverter circuit is connected with a variable-pitch motor in the variable-pitch system. When a power grid supplies power, electric energy is rectified by the rectifying circuit and then charges the super capacitor module and the battery pack; when the power grid stops supplying power, the super-capacitor module or the battery pack feeds back electric energy to the power grid. The energy storage device is additionally provided with the battery pack, and the battery pack is matched with the super capacitor module, so that the electric energy storage amount of the energy storage device is greatly increased; when the power grid is powered off, power can be supplied to the pitch control system for pitch retracting, yaw work and the like, and the electric energy requirements in various scenes can be met.

The invention relates to the technical field of intelligent electric vehicle charging, and discloses a new energy vehicle charging pile intelligent management method based on the Internet of Things, and the method comprises the steps: obtaining a replacement region set through employing a region division strategy according to a charging station set and a threshold distance; adopting a driving planning strategy to obtain a limited charging and swapping station set; according to the existing electric quantity, adopting a pre-reminding strategy to judge whether to recommend a battery charging and replacing station for the user; when the user charges the vehicle in the charging and battery swap station, a charging execution power station is obtained by adopting a charging planning strategy according to the existing electric quantity and the driving path; according to the driving path, adopting a battery replacement planning strategy to obtain a battery replacement execution power station; and according to the charging execution power station and the battery replacement execution power station, adopting a cost comparison strategy to recommend an optimal scheme for the user. In the process that the user drives the electric vehicle, the power station reserve general situations of different charging and swapping stations are predicted, so that the user can select the charging and swapping station with the lowest cost, and the service efficiency and the user satisfaction degree are improved.

The invention discloses a wave energy and tidal current energy combined power generation device used on a buoy, and relates to the technical field of ocean energy utilization, the wave energy and tidal current energy combined power generation device comprises a buoy main body, a connecting module, a plurality of wave energy power generation modules and a plurality of tidal current energy power generation modules, all the wave energy power generation modules are connected with the connecting module, the multiple wave energy power generation modules are evenly arranged around the periphery of the connecting module, the wave energy power generation modules can act to generate power along with ascending and descending of waves, and all the tidal current energy power generation modules are installed at the lower end of the connecting module; and the plurality of tidal current energy power generation modules are uniformly arranged around the center of the connecting module and can act to generate power along with the flowing of the tidal current. The power generation capacity and the power generation efficiency can be improved.

The electric vehicle comprises a lock control circuit, the lock control circuit comprises a USB interface, a first battery pack, an electronic lock, a control module and an identity verification module, the lock control circuit is electrically connected with external power supply equipment through the USB interface, and the external power supply equipment supplies power to the first battery pack, the electronic lock, the control module and the identity verification module; the identity verification module responds to the identity verification instruction and obtains identity recognition information; if the identity identification information is consistent with the preset identity information, the control module obtains a first output voltage of the first battery pack; if the first output voltage is smaller than or equal to the preset voltage threshold value, the control module controls the electronic lock to be unlocked. According to the electric vehicle, the electronic lock in the electric vehicle can be unlocked under the condition that the whole vehicle is insufficient in power or the battery is removed, a physical unlocking structure does not need to be relied on, and safety and convenience are improved.

The utility model discloses a wireless transmission lifting capacity indicating device for a truck with a loading crane, and belongs to the technical field of engineering machinery control. Comprising a tension sensor which is arranged at the head of a suspension arm of the truck with the loading crane and is connected with the tail end of a steel wire rope for hoisting operation; the weighing and transmitting device is arranged at the head of a suspension arm of the truck with the loading crane, and the weighing and transmitting device is electrically connected with the tension sensor; and the receiving and controlling device is arranged on an operation table of the truck with the loading crane, and the receiving and controlling device is in radio connection with the weighing and transmitting device. Through cooperation of the tension sensor, the weighing and transmitting device and the receiving and controlling device, a traditional lifting capacity indicating system is simplified, the measuring accuracy is improved to be within 3%, the cost is reduced, oil pressure, length and angle sensors are removed, the cost is saved by more than 60%, and therefore a truck with the loading crane can be easily accepted by a user, and technology popularization is convenient.

The invention relates to the technical field of mobile power sources, in particular to a butt joint type mobile power source and a processing and assembling method.The butt joint type mobile power source comprises a main power source module and at least one auxiliary power source module, the main power source module comprises a main battery cell, a main fixing support, a main control panel and a main power source shell, and the main battery cell is arranged on the main fixing support; the main control panel is arranged at one end of the main power supply shell, the main power supply shell is provided with a main placement cavity, the main fixing support is arranged in the main placement cavity, and the main battery cell is electrically connected with the main control panel; one end of the main power supply shell is provided with a main butt-joint boss, the other end of the main power supply shell is provided with a main butt-joint groove, the main control panel is arranged at one end of the main butt-joint boss, and the main control panel is provided with a main butt-joint jack; a main butt joint plug is arranged on the groove bottom face of the main butt joint groove. According to the invention, the auxiliary power supply modules can be selected to be added or reduced according to actual requirements, so that the overall power supply capacity is adjusted, and the electric quantity requirements in different scenes are met.

The utility model relates to fan circuit technical field discloses a portable fan gear display circuit with higher reliability and stability, including the main control circuit (110) for output control signal, charging and rotating speed control circuit (120) and display circuit (130), wherein, charging and rotating speed control circuit (120) are triggered by the control signal input, to control the work of motor, and the main control circuit (110) is converted to gear signal according to the duty cycle of current output control signal, display circuit (130) is used for receiving gear signal, and according to gear signal display current motor (M1) gear.

The application discloses an anti-icing conductive coating for a contact net and a preparation method thereof, and belongs to the technical field of coating preparation. The coating comprises an A component and a B component. The A component comprises 12-25 parts of modified fluorosilicon resin, 0.6-1.2 parts of fluorinated modified nano-SiO2, 2-4 parts of TiN / graphene composite material, 2-4 parts of graphene / carbon fiber composite material, 2-4 parts of tetraphenyl ethylene grafted hydroxyl-terminated polydimethylsiloxane polymer, 1-2 parts of metal powder, 1-3 parts of super-conductive carbon black, 0.1-0.5 parts of adhesion promoter, 0.2-0.6 parts of wetting dispersant, 0.1-0.3 parts of defoaming agent and 60-80 parts of solvent. The B component comprises 1.5-4 parts of polyisocyanate curing agent. The coating provided by the application has excellent conductivity, light-heat anti-icing effect, excellent hydrophobic and oleophobic properties, and effectively reduces the aggregation of rainwater or ice and snow on the contact net. The coating has good wear resistance, strong adhesion, good toughness, anti-microcrack and wide application prospect.

The invention provides a vehicle charging control method and system and a vehicle, and the method comprises the steps: obtaining multi-source heterogeneous data of the vehicle, the multi-source heterogeneous data comprising user scene data, vehicle travel data and battery reference state data; respectively inputting the multi-source heterogeneous data into a pre-trained parking time length prediction model and a pre-trained travel demand prediction model, and correspondingly obtaining an expected available charging time length and an estimated minimum required electric quantity; constructing a constraint condition based on the expected available charging duration and the estimated minimum required electric quantity, and solving to obtain a charging power sequence by taking the minimum cumulative aging cost as an optimization target; and executing the charging power sequence to control a charging process of the vehicle. According to the method, the minimum estimated cumulative aging cost is taken as an optimization target, and the stress and aging of the battery in the high charge state can be remarkably reduced, so that the full life cycle of the battery system is prolonged.