660 results about "Mains electricity" patented technology

The invention discloses an electric power control method based on a diesel generator, commercial power and photovoltaic grid connection. The method comprises the following steps: acquiring operation data of commercial power, a diesel generator and photovoltaic-energy storage through an energy management system, constructing a multi-target dynamic optimization model, and distributing power by taking the lowest comprehensive operation cost, the highest power supply reliability and the minimum carbon emission as targets; the power analysis and regulation unit adopts a double-loop mechanism of outer-loop Kalman filtering prediction compensation and inner-loop model prediction control, synchronizes the voltage, frequency and phase of the side to be connected with the grid and the power grid side, and smoothly switches the power change rate of each energy source in the process through a self-adaptive sliding mode control strategy; and the grid-connected switching unit intelligently pre-judges the grid-connected switching opportunity by using a long short-term memory (LSTM) network and fuzzy logic fusion model. According to the invention, the energy utilization efficiency and the power supply stability are improved, multi-energy intelligent dynamic regulation and control are realized, the comprehensive operation cost of the system is effectively reduced, and reliable power supply under complex working conditions is ensured.

The invention provides a power supply strategy optimization method for condensation control and a ring main unit, and belongs to the technical field of power supply, and the method specifically comprises the steps: determining the coincidence probability of the ring main unit and humidity intervals of different fluctuation types in a future preset time period according to the humidity monitoring data of the ring main unit, when the coincidence probability is utilized to determine that the distribution data of the coincidence risk time period in the future preset time period meets the requirement, the temperature change condition of the ring main unit under the weather data of the current date is taken as the basis, and the temperature change condition of the ring main unit is determined on the basis of the coincidence probability of the coincidence risk time period and humidity intervals of different fluctuation types; according to the method, the adjustment demand type of the humidity adjustment device of the ring main unit is determined, and the power supply processing strategy of the temperature adjustment device of the photovoltaic device at different monitoring temperatures is determined by using the adjustment demand type and the humidity monitoring data, so that the reliability of the control processing of the condensation risk is improved, and the use of the commercial power is reduced.

The invention discloses an anti-countercurrent system based on V2G equipment and a control method, and the system comprises at least two charging and discharging modules which are connected to one side of a power line, and the other side of the power line is connected to a power grid; the charging and discharging module comprises a first bidirectional electric meter and a V2G charging pile. One end of the V2G charging pile is connected with the power line through the first bidirectional ammeter, and the other end is connected with the charging terminal. The bidirectional main electricity meter is connected between the power line and the power grid; the contactor is connected between the bidirectional main ammeter and the power line. The anti-countercurrent control module is in communication connection with the bidirectional main electric meter, the contactor, the first bidirectional electric meter and the V2G charging pile; according to the invention, a virtualized anti-countercurrent control architecture is adopted, any V2G charging pile or cloud server is used as an anti-countercurrent control module, a traditional hardware controller is replaced by existing equipment computing power, global power regulation and control are realized based on data provided by the bidirectional main ammeter and the first bidirectional ammeter, and the system deployment cost and complexity are significantly reduced.

The invention discloses an intelligent power supply system for an integrated energy cabinet of a communication base station, and the system comprises a power supply parameter collection module which obtains parameters such as an input voltage fluctuation sequence and multipath load current data; the power supply feature extraction module performs fusion analysis on the parameters to generate a power supply feature vector set; the decision space construction module presets a power supply strategy knowledge base and a feature vector set, and establishes a power supply decision space index structure; the power supply decision module matches the optimal power supply strategy combination and outputs a first power supply control instruction set; the power supply execution module drives the power distribution unit to execute load power supply switching and storage battery charging and discharging control. The system comprises an energy pool module, an integrated photovoltaic device, a commercial power device and the like to realize access and dynamic distribution; the anti-countercurrent control unit ensures the energy flow safety; the zero-loss switch array regulates and controls an electric energy path to improve the efficiency; the power supply execution module drives multi-power-supply switching, security isolation and path switching, supports commercial power peak clipping, light stacking and off-peak power utilization, and improves the power supply reliability and energy efficiency of the base station.

The invention provides a grid-connected and off-grid mode switching control method and device and an energy storage parallel operation system, and relates to the technical field of energy storage systems.The method comprises the steps that if the energy storage parallel operation system is not connected to mains supply within a preset voltage range, the energy storage parallel operation system is controlled to enter an off-grid mode; based on the first voltage characteristic information of the energy storage converter host, controlling the energy storage converter slave to adjust the first voltage parameter; if the electric supply in the preset voltage range is connected to the energy storage parallel operation system, controlling the energy storage converter host to enter a tracking pre-synchronization mode from an off-grid mode, controlling the energy storage converter host to track the electric supply and sequentially adjust the second voltage parameter, and controlling the energy storage converter host to track the energy storage converter host and sequentially adjust the third voltage parameter; and controlling the energy storage converter host and the energy storage converter slave to enter a grid-connected mode at the same time. According to the technical scheme, it is ensured that the voltage parameters of the host and the slave are consistent, parallel operation circulating current oscillation can be avoided to a great extent, and the possibility of system faults is reduced.

The invention discloses a double-voltage adaptive rectification PFC (Power Factor Correction) circuit structure and an electric flame stove. The double-voltage adaptive rectification PFC circuit structure comprises an EMI (Electro-Magnetic Interference) filtering unit, a voltage doubling rectification unit, a full-bridge rectification unit, a circuit switching control unit, a startup protection unit and a power factor correction unit. According to the circuit switching control unit, through conversion of full-bridge rectification or voltage-multiplying rectification, adaptability to commercial power of two different voltages is achieved; according to the power-on protection unit, when 220V mains supply is input, after the circuit voltage is stabilized, the relay RLY2 is completely switched on, and soft start protection is achieved; according to the invention, the MOS tube Q1 / Q2 is alternately connected and disconnected in a time sequence, so that the inductor L2 stores energy or discharges, the capacitor C22 is charged or discharged, the power factor correction unit outputs stable high-voltage electricity to a rear-end circuit or a load, when the MOS tube Q2 is connected, the resistance is zero, the superposed high-voltage electricity is transmitted to the rear-end circuit when the potential of the inductor L2 discharges, and low-loss energy conversion is realized.

The invention relates to the technical field of machine room environment regulation and control, in particular to a communication base station intelligent energy-saving window control design method and system, and the method comprises the steps: obtaining and classifying base station source load data, setting energy-saving window parameters and an off-network strategy, monitoring a power supply state, and cooperatively controlling temperature control equipment in combination with electric quantity temperature difference. According to the method, the thermodynamic state is digitalized by calculating the outdoor cold source potential energy gradient and the indoor thermal load cumulative acceleration and combining the enthalpy difference allowance so as to accurately evaluate the natural cold source potential; the optimal ventilation opening degree and the fan rotating speed are matched through multi-dimensional feature clustering, so that the condensation risk is strictly restrained according to dew point approximation deviation while the heat dissipation efficiency is guaranteed, and in addition, a dual-target evaluation function in an off-grid scene is constructed to solve a non-dominated solution set of endurance time and thermal safety. A dynamic protection threshold value is generated; and when the commercial power is interrupted, a control strategy is adaptively adjusted according to the real-time load and the environment temperature, so that the off-network life cycle of the base station is maximized, and core equipment is ensured to always run within a safe temperature boundary.

The invention discloses a megawatt-level optical storage and charging system bidirectional power coordination control method and system based on a network construction technology, and relates to the technical field of power system control. The method comprises the following steps: initializing a multi-port energy router of the megawatt-level optical storage and charging system, and configuring control parameters of a virtual synchronous generator (VSG); a mains supply signal and the maximum mains supply power of a mains supply power grid system connected with the megawatt-level optical storage and charging system are obtained regularly, a grid-connected mode signal is generated if the running state of a mains supply power grid is normal, an off-grid mode signal is generated if the running state is abnormal, and network construction type bidirectional power coordination control is executed according to the signals. According to the invention, switching between the grid-connected mode and the off-grid mode can be rapidly and accurately carried out according to the real-time operation state of the power grid, and stable connection and cooperative operation of the system and the power grid are ensured in the grid-connected mode; in the off-grid mode, the independent and stable operation of the system after the system is separated from the power grid is guaranteed, and the adaptability of the system to different power grid working conditions is improved.

The invention relates to the technical field of power system energy storage equipment testing, in particular to a small and medium-sized industrial and commercial energy storage cabinet twin-trawling testing system which comprises a main loop, a secondary control loop and an anti-countercurrent detection unit, the main loop comprises double testing loops and four sets of alternating current contactors, and multi-machine twin-trawling testing frameworks such as one-to-one, one-trawling-two and one-trawling-three can be flexibly combined; independent switching between grid connection and grid disconnection is supported, the secondary control loop comprises a button with a lamp and a grouping reset button, and the countercurrent prevention detection unit detects the energy flow direction in real time through an intelligent electric meter and a current sensor and has a mains supply charging function. According to the test system, through a double-loop parallel test architecture and a multi-machine flexible combination design, the system can be synchronously butted with multiple energy storage cabinets to carry out parallel test, the test efficiency can be improved, and a safety system with anti-countercurrent detection, rapid mode switching and precise control protection guarantees the test safety; the arrangement of the standardized terminal and the button with the lamp simplifies the operation difficulty, and reduces the test threshold.

The invention provides an energy storage optimization scheduling method and system under microgrid priority fusion constraint, and the method comprises the steps: S1, carrying out the reading and preprocessing of multi-source data, carrying out the unified time axis of historical photovoltaic output, user load, future weather, electricity price, demand unit price, and completing the missing value interpolation and abnormal value elimination, and forming a time series data set; s2, setting decision variables, namely charging power, discharging power, maximum charging power, maximum discharging power, energy storage equipment capacity, commercial power purchase unit price and demand unit price; s3, the overall income is maximized under the specified priority, and the expenditure is reduced; s4, establishing a priority constraint, an energy storage hardware constraint, an electrical load constraint and other constraint conditions, and avoiding target scheduling conflicts according to the corresponding constraint conditions; s5, carrying out two-stage MINLP rapid solution, and searching a feasible solution in a short time by using a rapid exploration method; and deep optimization is carried out through a fine mode.

An electric power system, an energy storage system, and an operation method. The energy storage system is coupled to a mains supply of the electric power system by means of a power supply bus, and the electric power system comprises a plurality of uninterruptible power supplies coupled to the power supply bus. The energy storage system comprises a power adjustment device, a battery module, a direct-current conversion device, and a first controller; and the direct-current conversion device is correspondingly coupled to a plurality of direct-current buses of the uninterruptible power supplies by means of a plurality of external lines. The first controller controls the power adjustment device to convert alternating-current power on the power supply bus into first direct-current power so as to charge the battery module. When the mains supply fails, the first controller controls the direct-current conversion device to convert the first direct-current power into second direct-current power, and supply the second direct-current power to the direct-current buses respectively by means of the external lines.

The invention discloses a power supply management method and system, and relates to the technical field of electronics, and the method comprises the steps: analyzing the fluctuation trend information of voltage and / or current in the operation state data of a dual-power supply module in response to the condition that the voltage of commercial power is not within a voltage fluctuation threshold range, judging whether the dual-power supply module is abnormal or not according to the fluctuation trend information of the voltage and / or the current; in response to the fact that the dual-power supply module is normal, analyzing temperature and humidity data in the operation environment data of the electrical equipment, determining a comprehensive environment health index according to the temperature and humidity data, and judging whether the operation environment of the electrical equipment is safe or not according to the comprehensive environment health index; and switching the main power supply and the standby power supply in response to the fact that the operation environment of the electrical equipment is in the safe state. According to the application, the problems of poor stability, cruising ability, compatibility and the like of an existing server hardware power supply system can be solved, and the reliability and the operation and maintenance efficiency of server operation are improved.

The utility model relates to charging pile technical field especially, it relates to a charging pile, including box, the box has first side wall and second side wall, third side wall and fourth side wall, is equipped with the mounting cavity in the box, and the mounting cavity includes the first area between first side wall and intermediate relay, second area and third area, input piece is arranged in the first area, and input piece is used for connecting with commercial power, positive pole assembly and negative pole assembly are arranged in second area along first direction interval, and negative pole assembly includes the fuse and first relay, and positive pole assembly includes the shunt and second relay, and the fuse is connected with first relay electricity, and the fuse is connected with the negative pole of power supply electricity, and first relay is connected with output piece electricity, and the shunt is connected with second relay electricity, and the shunt is connected with the positive pole of power supply electricity, and second relay is connected with output piece electricity, and output piece is used for connecting with charging gun electricity. The components of box are arranged relatively neat, and it is convenient to install.

The utility model provides a power supply module, comprising a commercial power input end used for accessing a commercial power supply; the two energy storage input ends are respectively used for being connected with an energy storage power supply; the power supply switching device comprises a normally-open first change-over switch and a normally-open second change-over switch, the input end of the normally-open first change-over switch is connected with the energy storage input ends, and the input end of the normally-open second change-over switch is connected with the mains supply input end; and the power supply switching device is configured to controllably switch the opening and closing states of the normally-open first change-over switch and the normally-open second change-over switch, and selectively obtain power from the mains supply input end or the energy storage input end. The utility model has the advantages that flexible power supply selection can be provided, and the reliability of power supply is enhanced.

The utility model discloses a low-power-consumption high-efficiency main transformer integrated board for an air-cooled refrigerator, which comprises an X capacitor discharge circuit, a variable-frequency power supply circuit, a bus voltage sampling circuit, a mains supply voltage sampling circuit and an IGBT (Insulated Gate Bipolar Translator) driving circuit, and is characterized in that the X capacitor discharge circuit uses a discharge chip to replace a traditional discharge resistor; the variable-frequency power supply circuit is additionally provided with a variable-frequency power supply switch circuit, the bus and commercial power voltage sampling circuit modifies the resistance value of a divider resistor, and the IGBT driving circuit modifies the resistance value of a resistor. According to the utility model, improvement is made on the basis of a traditional air-cooled refrigerator main transformer integrated plate, the standby power consumption and the operation power consumption of the main transformer integrated plate are reduced, and the low-power-consumption and high-efficiency electric control design is realized.

The application relates to a line voltage power failure detection circuit and a detection method thereof. The line voltage power failure detection circuit comprises a variable voltage power supply module, a main power switch module, a power failure detection module, a first switch control module and a second switch control module. The power output end of the variable voltage power supply module is connected with the signal collection end of the power failure detection module. The signal output end of the power failure detection module is connected with the signal input end of the main power control module. The first signal output end of the main power control module is connected with the controlled end of the first switch control module. The second signal output end of the main power control module is connected with the controlled end of the second switch control module. When the commercial power supply stops, the main power switch module controls the first switch control module to be closed and the second switch control module to be opened, so that the battery or the capacitor is discharged, the capacitor is prevented from being kept in a high-voltage state for a long time, and the risk of electric shock is reduced.

The utility model relates to a power supply control circuit of a high-voltage box, the high-voltage box and an energy storage outdoor cabinet. The power supply control circuit utilizes the AC / DC module to convert AC commercial power into DC voltage to supply power to the load module when the AC commercial power supplies power normally. When the power supply of the alternating-current mains supply is abnormal, the battery cluster outputs battery voltage to supply power to the load module. And through the AC / DC module, when the power supply of the AC commercial power is normal, the DC voltage is controlled to be higher than the battery voltage. Redundant components such as contactors, pre-charging components, fuses and the like in a conventional high-voltage box are omitted. The design of the high-voltage box power supply control loop with high integration level is realized, the volume size of the high-voltage box is reduced, and the production cost is reduced.

Method for operating a device (100) for wirelessly transmitting energy towards an electrical load (200) by means of inductive coupling, wherein the device (100) comprises: - a rectifier (108) for generating a DC voltage (US) from a mains AC voltage (UN), - an inverter (102) supplied by the DC voltage (US) configured to generate a pulse-width modulated control signal (AS), and - a power coil (101) controlled by the pulse-width modulated control signal (AS), by means of which an alternating magnetic field can be generated for transmitting the energy during predetermined transmission cycles, - wherein the method comprises the following steps for predetermined operating conditions: - determining, for a plurality of time points during a respective transmission cycle,which energy has been transferred from the device (100) towards the electrical consumer (200) up to the corresponding time during the respective transmission cycle, - comparison of the transferred energy with a maximum value and - if the transferred energy is equal to or greater than the maximum value, switching off the pulse width modulated control signal (AS) for the remaining part of the transmission cycle.

The invention discloses a vehicle-mounted adaptive multi-mode intelligent switching power supply system, and belongs to the electrical field. The system comprises a diesel generating set, a dual-power-supply automatic switching control box, an uninterruptible power supply, a power battery pack, an alternating-current power distribution unit, a direct-current power supply, a direct-current power distribution unit, an alternating-current switching box, a master control panel and a power supply and distribution system cable network. The diesel generating set is used as a standby power supply and is automatically switched with the mains supply through the dual-power-supply automatic switching control box; the uninterruptible power supply realizes alternating current conversion and battery inversion backup; the direct-current power supply provides low-voltage direct-current output; the alternating-current and direct-current power distribution units realize electric energy distribution and control; the alternating current switching box realizes single-path input and multi-path output; and the master control panel centrally controls the start, stop and on-off of the system. The system has the characteristics of multi-mode self-adaption, intelligent switching, fault self-recovery and high reliability, and is suitable for stable power supply of vehicle-mounted equipment such as a military command vehicle.

The invention discloses a main and branch metering user multi-grid-connected point photovoltaic precise metering method, which comprises the following steps: step 1, obtaining an impedance value at a photovoltaic power generation metering point, and obtaining an H-class impedance sample set; 2, obtaining a sparse impedance value by using a K-SVD sparse decomposition algorithm, and constructing a sparse matrix; step 3, updating the discrimination dictionary based on the sparse matrix; 4, decomposing the sparse matrix into a trend term and a periodic term by using an Autoformer model encoder; 5, decomposing the impedance value in real time by using an Autoformer model to obtain real-time mains supply impedance, photovoltaic impedance, sub-metering impedance and other part impedance under different frequencies; and step 6, obtaining the impedance value of each part under the power frequency, and realizing the multi-grid-connection-point distributed photovoltaic accurate metering of the main and branch metering users. According to the invention, no extra hardware is added, and the physical quantity is obtained by using the carrier signal of the electric energy meter to realize accurate metering.

The utility model relates to the technical field of electrical control, in particular to a mobile square cabin electrical control box, which comprises a power supply module, a motor driving module, a control module and a connecting module, and is characterized in that the power supply module is respectively connected to the motor driving module and the control module through the connecting module; the power supply module comprises a battery pack, a mains supply access interface, an inverter and a switching power supply, the connection module comprises a power supply interlocking change-over switch, a grounding terminal strip and an air conditioner, the mains supply access interface is connected to the inverter, one path of output end of the inverter is connected with the base station equipment, and the other path of output end of the inverter is connected with the power supply interlocking change-over switch. According to the utility model, through the first interlocking change-over switch and the second interlocking change-over switch, the flexible switching between the commercial power and the power supply of the battery pack is realized, and the working continuity of the mobile square cabin in various environments is improved.

The embodiment of the application provides an emergency power supply circuit and a refrigerator, which comprise: a detection module connected with commercial power, the detection module being used for detecting the working state of the commercial power; an emergency power supply comprising a solar cell and a storage battery; a controller connected with the detection module and the emergency power supply respectively, the controller being used for determining the working state of the commercial power according to a comparison signal of the detection module and the emergency power supply, and generating a switching power supply signal when the working state of the commercial power is power-off; and a switching module electrically connected with the controller and electrically connected with a refrigeration assembly, the switching module being used for switching the power supply of the refrigeration assembly to the solar cell or the storage battery according to the switching power supply signal, and the power supply of the solar cell being prior to the power supply of the storage battery. The emergency power supply of the refrigeration assembly can be realized, so that the refrigeration function of the refrigerator is maintained, and the risk of food deterioration is reduced.

Electronic component arrangement of a charging device for electric vehicles in column form, consisting of an elongated housing (1) with a polygonal cross-section and an electronic component carrier (3) accommodating DIN rails (2) as well as a bottom-side mains access, wherein the housing has at least one removable cover enabling component access, characterized in that the housing (1) is designed as a single unit and all mains current and mains voltage carrying electronic components are stacked vertically on top of each other in the housing (1) starting from the bottom-side mains access (4), and furthermore the low-voltage electronic components, in particular those with critical electromagnetic compatibility, are located in the installation space furthest from the bottom side of the housing (1).

The utility model discloses pipeline anti-freezing central water purification equipment with a solar heat tracing band, which comprises an equipment main body, and a water inlet, a raw water tank, a pretreatment system, a membrane filtration system, a water purification tank, a water supply pipe network and a water outlet are arranged in the equipment main body. The water supply pipe network is composed of a water supply pipeline, a temperature sensor and a pipeline heat preservation device. A heat tracing band and a power supply system are arranged in the pipeline heat preservation device, and the power supply system is composed of a solar cell panel, a photovoltaic controller, a storage battery, an AC / DC converter, a mains supply and an inverter. Solar energy can be preferentially used for supplying power to the heat tracing band in the pipeline heat preservation device, meanwhile, the mains supply is adopted as an emergency power supply, and when solar energy is insufficient, the mains supply is switched to supply power to the heat tracing band. The system not only reduces the electric power cost, but also realizes the utilization of clean energy, promotes the development of the energy-saving and environment-friendly cause in China, and promotes the construction of a resource-saving and environment-friendly society.

The application relates to an emergency brake release power supply circuit and equipment. The circuit comprises a control module, a switching component, a first power supply circuit and a second power supply circuit; the control module turns on the connection between the first power supply circuit, the second power supply circuit and the corresponding interface equipment through the switching component, so that, in the case of normal power supply, the control module controls the first power supply circuit to supply power to the equipment standby battery, and in the case of monitoring the corresponding signal, the control module controls the first power supply circuit to provide power supply for the equipment control system, and controls the second power supply circuit to supply power to the brake holding coil; in the case of abnormal power supply, if the corresponding signal is monitored, the equipment standby battery provides power supply for the equipment control system through a DC-DC converter, and the control module controls the first power supply circuit to supply power to the brake holding coil through the switching component. Thus, the application simplifies the circuit, realizes the cost reduction through the reuse and normalization of the circuit.

The invention discloses a zero-carbon building weekly power consumption optimization method considering meteorological factors and power consumption events, and the method comprises the steps: predicting the photovoltaic power generation power and building foundation load per hour in a future week based on a photovoltaic power generation multiple linear regression model and a building foundation load multiple linear regression model; establishing a zero-carbon building power utilization optimization model based on different weather types according to the environment and internal power utilization equipment data in the zero-carbon building and the predicted photovoltaic power generation power and building basic load; the building weekly power consumption optimization method under different meteorological factors is established by considering the influence of the change of the meteorological factors in the next week on building photovoltaic power generation and the influence of the power consumption events arranged by the building in the next week on building load, the operation of main power consumption equipment in the building is optimized, and the building power consumption is met while the building power consumption is met. The method can achieve the optimal economic benefit and guarantee the zero-carbon operation of the building, is used for the weekly operation energy optimization of the zero-carbon building, and improves the energy utilization efficiency.

The utility model provides a high-pole lamp with a wind power energy storage device, which relates to the technical field of lighting street lamps and comprises a control mechanism, the control mechanism comprises a mounting base, a controller is arranged on one side of the mounting base, a console is arranged on one side, far away from the controller, of the mounting base, and a splicing mechanism is arranged on the mounting base. According to the high-pole lamp, the vertical-axis wind driven generator is arranged, wind power can be used for generating power, autonomous power supply is achieved, dependence on the mains supply is reduced, energy can be stored through power generation under the condition that the wind power is sufficient, continuous and stable power supply is provided for the high-pole lamp and accessory equipment of the high-pole lamp, and therefore the power cost is greatly saved; and the energy utilization efficiency is improved.

The utility model discloses a PVT heat pump system and a water heater. The system further comprises a second condenser, an electromagnetic valve, a second electronic expansion valve, a third electronic expansion valve, a first three-way valve and a second three-way valve. According to the PVT heat pump system, the structure of the PVT heat pump system is improved, the condenser and other components are additionally arranged, different branches are set up, based on the novel PVT heat pump system structure, high-temperature hot water of 65-70 DEG C can be produced, the requirements for hot water of 65 DEG C or above in the industries of hot spring hotels, metal processing, food, chemical engineering and the like are met, and when the water temperature of the system is 50 DEG C or above, the energy consumption of the system is reduced. And relatively high COP performance is still realized. In addition, the new PVT heat pump system can perform heating while defrosting, extra mains supply is almost not needed to be provided for defrosting, and the electricity utilization cost of a user is reduced.

The utility model belongs to the technical field of emergency power connection devices, and discloses a special device for emergency power connection of a port yard bridge, which comprises a power taking device and a cable assembly, and the power taking device can be electrically connected with the mains supply of a slide wire; the cable assembly comprises a plug assembly and a socket assembly. One end of the plug assembly is connected with a power-taking device cable; one end of the socket assembly can be electrically connected with a to-be-powered field bridge; the other end of the plug assembly can be electrically connected with the other end of the socket assembly. According to the utility model, the power taking device can be fixed on the slide wire clamping groove and can be electrically connected with the mains supply of the slide wire, and the power taking device can be electrically connected with the field bridge to be supplied with power through the plug assembly and the socket assembly, so that the power-losing field bridge can be quickly recovered to operate, and the field bridge is prevented from occupying a working channel for a long time due to power loss; the normal production activity is influenced; the emergency power supply system can provide emergency power supply for the port yard bridge, is beneficial to improving the stability and reliability of the operation of the yard bridge, and is beneficial to reducing the economic loss caused by the power loss of the yard bridge.

The utility model discloses computing equipment. The computing equipment comprises a cabinet body, a green power module arranged in the cabinet body, and a deployment module, an energy storage module and a load which are arranged in the cabinet body, the allocation module comprises a green power adjustment module, a mains supply adjustment module and a power distribution module, and is used for outputting power adjusted by the green power adjustment module and the mains supply adjustment module from the power distribution module; the green power adjusting module is electrically connected with the green power module, and the commercial power adjusting module is electrically connected with a power grid. The energy storage module is electrically connected with the power distribution module. The power distribution module is used for preferentially using the electric power adjusted by the green power adjustment module to supply power to the energy storage module. The load is electrically connected with the power distribution module and the energy storage module. The computing equipment is used for ensuring that businesses can be orderly and continuously carried out while the increasing computing power requirement is met, and the power utilization cost is effectively reduced.