39results about "Power network operation systems integration" patented technology

In accordance with various aspects of the present invention, a method and circuit for reducing power consumption of a power strip is provided. In an exemplary embodiment, a power strip is configured for reducing or eliminating power during idle mode by disengaging an outlet from power input. A power strip may include two or more outlets and two or more outlet circuits, with AC power input connected to the outlets through the outlet circuit(s), which may include a current transformer, a control circuit, and a switch. The current transformer secondary winding provides an output power level signal proportional to the outlet load. If behavior of the current transformer secondary winding indicates that the outlet is drawing substantially no power from the AC power input, the switch facilitates disengaging of the current transformer primary from the outlet.

An improved communication and control architecture for a secondary power distribution assembly that comprises common dual serial data buses that connect corresponding control processor modules directly to associated solid-state power controllers in a plurality of power modules.

The invention discloses a classified microgrid networking system based on terminal users and relates to the microgrid networking system. A user-stage microgrid is composed of a microgrid busbar, a distribution network busbar, a load switch, a power switch, an energy storage switch, a microgrid switch and a distribution network switch; the microgrid busbar is an alternating current or direct current busbar and is connected with a community-stage microgrid through the microgrid switch; the distribution network busbar is connected with a public distribution network through the distribution network switch; a conventional load is connected with the public distribution network; a compatible load is connected with the microgrid busbar or the distribution network busbar through the load switch; a distribution power supply is connected with the microgrid busbar through the power switch; and an energy storage device is connected with the microgrid busbar or the distribution network busbar through the energy storage switch. The classified microgrid networking system based on the terminal users is suitable for microgrid networking of terminal users who use photovoltaic or wind-solar hybrid equipment for distributed generation.

The purpose of the present invention is to provide a method and device for operating a power system, and a rechargeable-battery management device, that extract maximum performance from rechargeable batteries and use said batteries evenly while taking into consideration cost and the operation of the batteries. In order to solve said problem, in this method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and said rechargeable battery is used to supply power during the scheduled time period on the scheduled date.

A method for controlling electrical power consumption for a first group of functional which can be used for operational management during operation of the bioreactor components during operation comprises, inter alia, adjusting a present power control signal for one or more of the functional components from the first group in order to optimise power consumption, when a comparison shows for the first group of functional components that the currently required total electrical power consumption is greater than a predefined total electrical power consumption, such that, for the first group of functional components, an adjusted total electrical power consumption is not greater than the predefined total electrical power consumption. A biotechnological apparatus comprises a bioreactor, a reactor vessel formed in the bioreactor and having a cultivation chamber, and a temperature control device provided with a heat pump and configured to control the temperature of the cultivation chamber.

The invention discloses an energy-saving type electric vehicle charging station. The energy-saving type electric vehicle charging station comprises a master controller, a wind power generator set, a solar power generation device, a diesel engine generator set, a drive, a storage battery set, an AC/DC converter, a DC/DC converter, a voltage measurement device, a fault detection device, a control switch K1, a control switch K2, a control switch K3, a control switch K4, an intelligent power distribution device, a timing switch and a charging device. According to the energy-saving type electric vehicle charging station, wind power and solar power are comprehensively utilized for generating electricity, the electricity generation amount is increased, and the good energy-saving effect is played; an energy storage device is adopted, electric energy can be stored in the non-electric-peak period and released in the electric peak period, and the impact of the charging station to a power grid when electricity is used in the electric peak period is avoided; when a fault of the power grid occurs, automatic emergency power supply is performed by the diesel engine generator set, and the normal and stable operation of the charging station is guaranteed.

The invention relates to a connection and base part for accommodating a pluggable surge arrester, comprising a base (13) and a U-shaped part (17), which is connected or can be connected to the base (13) and has guide and/or latching means for accommodating the complementarily designed surge arrester on the mutually facing limb inner sides, a telecommunication switch (11), which is inserted in the base (13), with connections (21) passed to the outside and an actuating device, which is connected to the telecommunication switch (11) and has a plunger (8), which is accessible via a cutout in the limb connecting section of the U-shaped part (17) in order to be operatively connected to a function display, a thermal release or another monitoring device of the pluggable surge arrester. According to the invention, a connecting link-type, groove-shaped guide (12) is introduced in the base (13) and has a continuously arcuate or arcuate/linear profile, wherein the guide (12) extends between the plunger (8) and the telecommunication switch (11). Furthermore, an actuating rail (9), whose form is similar to that of the connecting link, is inserted into the guide, wherein this actuating rail, with an integral design, has the plunger (8) and an areal part (10) for activating the telecommunication switch (11).

The apparatus is for use with a grid-linked facility and an alarm functionality. The grid-linked facility is of the type having a building containing an electrical load; and a breaker connected to the load and to the grid. The alarm functionality includes electronics adapted to produce information, the information being responsive to the availability of grid power downstream of the breaker; and transmission functionality adapted to receive information and to send received information beyond the building, the transmission functionality being coupled in use to the electronics for the receipt of information therefrom. The apparatus comprises a sensing functionality disposed in use upstream of the breaker; and circuitry coupled in use to the sensing functionality and the transmission functionality to deliver information associated with the availability of grid power upstream of the breaker to the transmission functionality.

The invention discloses a main/standby power conversion detection circuit capable of switching off a power supply IC for a power supply module. The main/standby power conversion detection circuit comprises an input voltage module, a reference voltage module, a comparator, an optocoupler module and a power supply IC control module, wherein the input voltage module is connected with the AC input endof the power supply module and is used for filtering and dividing the voltage of the AC input end, the comparator compares the output voltage of the input voltage module with the output voltage of the reference voltage module, the optocoupler module is disconnected when the output voltage of the input voltage module is too low, and the power supply IC is controlled to be disconnected through thepower supply IC control module. The main/standby power conversion detection circuit can continuously detect the input voltage of the AC input end, automatically turn off the power supply IC when the input voltage is under-voltage, and turn on the power supply IC when the input voltage is normal, thereby realizing the under-voltage protection of the power supply IC, and avoiding the problems of heating and even burnout caused by the long-term operation of the power supply IC under the condition of low voltage.

The invention discloses a power control method for a standby power supply mode of electric equipment. The method comprises the following steps: 1, acquiring a voltage value Vi output by a power supplyat any moment; 2, comparing the voltage value Vi at the moment with at least one group of preset voltage limit values, each group of voltage limit values comprising a high voltage limit value higherthan a normal voltage and a low voltage limit value lower than the normal voltage, judging whether the voltage value Vi exceeds the range limited by the voltage limit value or not, if not, returning to the step 1, and if yes, entering a step 3; and 3, reducing the required power of the electric equipment according to the set adjustment amplitude or adjustment speed. The required power of the electric equipment is self-adaptively adjusted according to the voltage value output by the voltage, so that the electric equipment can continuously work under the conditions of poor power grid conditionsor insufficient standby power supply power, unstable output and the like, and the user experience is guaranteed.

The invention provides a fuel cell standby power supply control system and method. The system comprises an alternating-current power supply, a fuel cell standby power supply and a direct-current load,wherein the alternating-current power supply, the fuel cell standby power supply and the direct-current load are independently connected; and the fuel cell standby power supply includes a starting module and a fuel cell, a circuit breaker is arranged between the starting module and the fuel cell, and the alternating-current power supply is independently connected with the starting module and thefuel cell. A capacity starting battery module is added into the fuel cell standby power supply system, and the module is small in capacity, large in current and low in cost and can supply power to a short-time main control board and a load; and the circuit breaker is added between the starting module and a fuel cell main control board, a power supply relation between the fuel cell and the startingmodule can be physically cut off, control is simple, and logic is concise.

The invention discloses a special device for an FTU special power supply, and the device comprises a terminal main body and a stable energy system. The terminal main body comprises heat dissipation holes, water absorption cellucotton and an intermittent drainage assembly. The stable energy system comprises an input module, a first power supply module, a current-limiting resistor module, a super capacitor module and a second power supply module. According to the device, the requirements of a core device and high-power switching operation are met through a stable energy system, water absorptioncellucotton is extruded and drained through the intermittent drainage assembly, rainwater is prevented from seeping into a terminal through the water absorption cellucotton, and the first drainage component and the second drainage component are driven by the motor to extrude from the two sides to the middle at the same time; water in the water-absorbing cellucotton is quickly emptied, and the working efficiency is improved. And intermittent extrusion drainage is carried out on one side during drainage, so that the situation that the heat dissipation capacity of the terminal is affected due tothe fact that the water-absorbing cellucotton is extruded again when absorbing water insufficiently is avoided.

The present application relates to a detection circuit, a control system, an electric appliance device, and a control method and device, and belongs to the technical field of electric appliance equipment. The detection circuit of the present application includes a detecting module configured to detect a signal output by a device to be detected and output the signal so as to determine an instruction received by the device to be detected according to the output of the detecting module. The detection circuit can be used for detecting a DRED. When the detection circuit of the present application is used in an electric appliance device, the electric appliance device can detect the DRED and obtain the instruction received by the DRED.

The invention relates to the technical field of intelligent elevators, in particular to a novel cloud platform community cluster type added elevator power supply intelligent management system which comprises a cloud platform cluster elevator power supply data processing module, elevator power data processing units in all elevators in a community, a remote data receiving and transmitting terminal, an elevator calling module, a weighing device and a current sampling unit. Wherein the cloud platform cluster elevator power supply data processing unit is used for presetting an electric quantity distribution rule of each elevator and sending an elevator operation power utilization result calculated by the rule to each elevator through the remote data receiving and transmitting terminal, and each elevator receives the corresponding result and calculates the elevator speed and load of the operation, so that the effect of planned and regular operation is achieved. The method has predictability and controllability on the influence of the power grid. The elevator control system directly collects the current power grid voltage, a voltage sensor is prevented from being additionally arranged, convenience and simplicity are achieved, and cost is saved. And meanwhile, the situation of power grid tripping caused by serious burden on a power grid due to simultaneous full-load operation of excessive elevators is avoided.

The invention discloses a micro-energy collection system, and the system comprises a resonant solenoid coil, a wire equivalent circuit, a frequency conditioning circuit, an up-conversion matching circuit, a power storage circuit, a voltage-stabilizing circuit, a filter circuit, a power management chip, and a standby power circuit. The resonant solenoid coil is connected with the wire equivalent circuit, and the wire equivalent circuit is connected with the frequency conditioning circuit. The frequency conditioning circuit is connected with the up-conversion matching circuit, and the up-conversion matching circuit is connected with the power management chip and the standby power circuit. The power management chip is connected with the filter circuit, and the filter circuit is connected withthe voltage-stabilizing circuit. The voltage-stabilizing circuit is connected with the power storage circuit. The system collects the energy of a surrounding electromagnetic field through the resonant solenoid coil, and stores the electric energy through the frequency conditioning circuit, the up-conversion matching circuit and the power storage circuit. During an electric energy alarm of a node,the system automatically supplies power to the node, and achieves the continuous power supply of the node.

The invention relates to a phase change cold storage air conditioner power dispatching method and device, computer equipment, a storage medium and a computer program product. The method comprises the steps that phase change cold storage air conditioner operation constraints and gas turbine operation constraints are obtained, and a power flow distribution model of active power distribution network operation is determined according to the phase change cold storage air conditioner operation constraints and the gas turbine operation constraints; constructing an active power distribution network day-ahead scheduling model according to the power change data of the renewable energy sources, the gas turbine operation constraint and the power flow distribution model of the active power distribution network; performing optimization solution on the active power distribution network day-ahead scheduling model, and outputting an active power distribution network day-ahead scheduling strategy; and carrying out power regulation on the phase change cold storage air conditioner by utilizing a day-ahead scheduling strategy of the active power distribution network. By adopting the method, the power regulation of the phase change cold storage air conditioner is realized, and the operation cost of a power distribution network is reduced.

The invention relates to the technical field of a micro-grid application, and discloses a black-start system and method for a small hydropower station micro-grid. The system comprises a trunk line with a plurality of loads at the tail end, a power grid branch line, an energy storage switching station, an important load power distribution room branch line and an energy storage management system, the tail end of the trunk line is connected to a bus A, the power grid branch line is connected to a bus B, the branch lines in the energy storage switching station are connected to corresponding buses in a 3/2 wiring mode, and the energy storage management system controls on and off of a switch corresponding to each branch line in the energy storage switching station. The invention also correspondingly provides a black-start method based on the system, the method automatically switches the load according to the output of the small hydropower station and the load condition, gradually recovers power supply in a hydropower-load small-capacity alternate start mode, and can prevent the line charging current and the transformer excitation surge current from being too large. Impact on a black-start main power supply is effectively reduced, and the method can be suitable for a micro-grid containing multiple hydropower stations, energy storage and multiple loads.

The load importance-based three-stage topological operation optimization method provided by the embodiment of the invention comprises the following steps: collecting power distribution network operation data after a fault, and establishing a topological structure for fault identification; establishing a load importance evaluation model according to the power-losing charge in the distribution network operation data; searching a distributed power generation device with adjustable power in the island area of the distribution network, and carrying out first-stage topological optimization; establishing a two-stage topological optimization model, and performing load transfer on the standby feeder line and the distributed power generation device; and after load transfer, if a target substation in an overload operation state still exists, establishing a secondary transfer model, and obtaining the optimal transfer load capacity of the target substation. The method can effectively process the decision of the optimal operation mode of the distribution topology under the fault, improves the power supply reliability of the power distribution network, can check and optimize the maintenance mode of the power distribution network, facilitates the regulation and control of the comprehensive analysis of the load of the cloud platform power distribution network, and also facilitates the optimal utilization of the system capacity of the power distribution network.

The invention provides a household intelligent power utilization optimization method considering uncertainty of power utilization behaviors of users, and aims to solve the problem that power utilization plans cannot be normally carried out due to uncertainty of the power utilization behaviors of the power users. The method comprises: dividing the uncertain behavior of the power consumption of thepower consumer into a power consumption adjusting plan and a power consumption increasing and decreasing task; providing a reliability index method for the uncertain behavior of adjusting the power consumption plan of the power consumer, and normalizing the reliability indexes of various loads to formulate a day-ahead power consumption plan; for the uncertain behavior of increasing or decreasing power utilization tasks of power consumers, providing a power utilization emergency coefficient and a comprehensive power utilization emergency index, rearranging power utilization according to specific behaviors of the consumers, and making a real-time power utilization plan. Based on the two types of user power utilization uncertainty behaviors, the household intelligent power utilization optimization process is divided into two parts, so that the reliability of the household intelligent power utilization plan is improved.