49 results about "Emergency power system" patented technology

The invention relates to the technical field of mine emergency power supplies, and discloses a mine emergency power supply system and method based on photovoltaic and energy storage coupling, and the system is characterized in that a photovoltaic power generation module charges an energy storage module in daily life, and carries out the coordinated auxiliary power supply in emergency; the energy storage module outputs direct current to the energy storage, current conversion and voltage boosting all-in-one machine through a direct current bus; the energy storage, conversion and boost all-in-one machine converts direct current into alternating current and supplies power to the mine emergency guarantee module; the energy management module issues a control instruction to the photovoltaic power generation module, the energy storage module, the energy storage conversion and boost all-in-one machine and the mine emergency guarantee module; the mine emergency guarantee module is connected with the alternating current of the energy storage, conversion and boosting all-in-one machine through the quick switching device to supply power to the key load; the multi-level safety protection module is connected with the energy storage module and the mine emergency guarantee module to monitor the safety state. The technical bottleneck of the current mining area energy storage system is effectively solved, and the safety, reliability, economic practicability and comprehensive energy efficiency are remarkably improved.

The invention belongs to the technical field of aircraft power supply system design, and discloses a high-reliability airborne equipment dedicated DC power supply system, which comprises a 1 # permanent magnet machine, a 2 # permanent magnet machine, a 1 # rectification box, a 2 # rectification box, a 1 # main bus bar, a 2 # main bus bar, a 1 # distribution box and a 2 # distribution box, the first permanent magnet machine and the second permanent magnet machine are driven by the main speed reducer to output two paths of three-phase alternating currents, and the two paths of three-phase alternating currents are transmitted to the first rectification box and the second rectification box respectively. The 1 # rectification box and the 2 # rectification box convert three-phase alternating current into 29V direct current and supply power to the 1 # distribution box and the 2 # distribution box. The 1 # main bus bar and the 2 # main bus bar respectively supply power to the 1 # distribution box and the 2 # distribution box through the fuse; the 1 # power distribution box and the 2 # power distribution box enable four paths of direct current input by the 1 # rectification box, the 2 # rectification box, the 1 # main bus bar and the 2 # main bus bar to be isolated and connected in parallel through a diode and then supply power to key electric equipment. According to the invention, the problem that the power supply demand cannot be met by the emergency power supply system is solved, and the power supply reliability of the electric equipment is greatly improved.

The application belongs to the technical field of aviation second power system, and discloses an airplane emergency power gas generating system and method based on water enhancement technology, wherein the system adopts fuel oil and high-pressure gas cylinder gas supply to combust in a gas generator, high-temperature and high-pressure gas is generated as the emergency power of the airplane; when the fuel oil and air are mixed and combusted in the gas generator, water is sprayed in the gas generator, water is used as the combustion coolant, and the compressed air amount used by the gas generator after combustion to generate unit gas is reduced. The aviation kerosene and high-pressure air are used as the fuel and oxidant, the fuel system has the advantage of good compatibility with the airplane, the compressed air amount used by the gas generator to generate unit gas is greatly reduced, the working time of the gas generator system is prolonged, the expensive catalyst is not used, and the problems of short service life of the gas generator system and high price of the catalyst of the traditional emergency power system are avoided.

An emergency power system (100) and emergency lighting dimming method are disclosed. The emergency power system (100) includes a power source (10), a phase-cut waveform generator (11, 13, 300, 310, 311, 400, 410, 411) coupled to the output of the power source (10) and arranged to provide a phase-cut waveform (FIGS. 2 and 3) to a load (12). The load may be one or more emergency lighting devices. A feedback detection module (14, 201) may be is used to monitor the voltage and / or current data supplied to the load (12) by the phase-cut waveform generator. A controller (13, 202-205) controls the phase-cur waveform generator (11, 13, 300, 310, 311, 400, 410, 411) to adjust the power level of the load (12) by modifying the phase-cur waveform based upon the monitored voltage and / or current data and reference data to achieve the appropriate dimming level.

The utility model relates to the technical field of generators, in particular to an emergency power supply system. The emergency power supply system comprises a variable frequency motor, a unit starting module, an inverter, an energy storage inverter, a starting motor, a power piece and an energy storage battery, a rotor of the variable frequency motor is in transmission connection with the power part; the output end of the variable frequency motor is electrically connected with the input end of the inverter; the unit starting module is electrically connected with the inverter, the starting motor and the energy storage battery. The inverter is electrically connected with the energy storage inverter and the power part and is in communication connection with the energy storage inverter; the energy storage inverter is electrically connected with the energy storage battery and the output end of the inverter; the starting motor is electrically connected with the energy storage battery and is in transmission connection with the power piece, and the problems that a battery is single in function and low in energy use efficiency can be solved.

This invention discloses an emergency mud treatment system for electric cementing trucks, including a power switching valve assembly. The actuator end of the power switching valve assembly is connected to a centrifugal pump drive motor and a speed control valve. The power source port of the power switching valve assembly is connected to an emergency hydraulic pump assembly and a motor-driven hydraulic pump assembly. The emergency hydraulic pump assembly is connected to an emergency power system. The outlet end of the speed control valve is connected to a stirring motor, and the outlet of the stirring motor is connected to a hydraulic oil tank. This invention also discloses an emergency treatment method for the emergency mud treatment system for electric cementing trucks. This invention solves the problem of mud not being discharged from the mixing tank during power supply failures in current electric cementing trucks, reducing the risk of equipment and property damage caused by mud solidification and improving equipment safety and reliability. Utilizing a highly integrated power switching valve assembly, it achieves power switching of the equipment's hydraulic power source in emergency situations. The pipeline is simple, occupies little space, achieves intelligent emergency mud treatment, has a simple structure, and low manufacturing cost.

This application discloses an intelligent fast emergency power supply system with a smart battery unit, relating to the field of modern power electronics technology. The system is centered on an inductive intelligent module X34 that monitors short circuits at the output terminal and a smart battery unit IIU. Its supporting architecture includes an intelligent controller IPo, a composite fast switch Cf, a mains direct transmission branch Dt, and an emergency fault branch Ae. Supporting components include monitoring instruments IA, IA1, IA2, IA3, and an output switch S2. Under the combined action of IPo, X34, and the internal switches of IIU, this system prevents the battery inverter branch from supplying power to short-circuit loads. Even if IPo experiences a temporary malfunction, there will be no failure in battery temperature control or protection. Even if the battery fails to discharge for an extended period, there will be no internal caking or scaling. Therefore, the safety and reliability of this system are unaffected by various interference factors.

The utility model belongs to the technical field of power transmission line on-line monitoring technology, and discloses a power supply emergency guarantee device for a power transmission line visualization device, which comprises a visualization power supply system and an emergency power supply system, and is characterized in that the visualization power supply system comprises a charging and discharging controller, a solar cell panel I and a storage battery; the input end of the charging and discharging controller is electrically connected with a first solar cell panel, the input end of the charging and discharging controller is further electrically connected with a storage battery, the output end of the first solar cell panel is electrically connected with the storage battery, and the output end of the charging and discharging controller is electrically connected with a camera. According to the power supply emergency guarantee device for the power transmission line visualization device, the reliability of power supply of visualization equipment is improved, the operation stability of the equipment in severe weather is supported, stable online is kept, and normal power supply of image transmission equipment is supported, so that long-term stable online of the equipment is ensured, the maintenance frequency of the equipment is reduced, and the operation and maintenance cost is reduced.

The utility model provides an emergency system and an emergency house. Relates to the technical field of emergency refuge facilities. The emergency system is applied to an emergency house. The emergency power supply system comprises a photovoltaic panel, a light storage integrated cabinet and a power generator; the photovoltaic panel and the power generator are respectively connected with the light storage integrated cabinet; wherein the light-storage integrated cabinet is arranged inside a house body of the emergency house, and the photovoltaic panel and the power generator are arranged outside the house body; the emergency basic system comprises an emergency lighting device and an emergency water supply device; the light storage integrated cabinet is further connected with the emergency lighting device and the emergency water supply device. According to the emergency system provided by the invention, the self-sufficiency capability and the survival guarantee level of the emergency house in an emergency are improved.

The invention belongs to the technical field of emergency power generation, and discloses an emergency power generation method and device, electronic equipment and a medium. The method comprises the following steps: acquiring a real-time electric energy quality parameter of the emergency power supply system for quality evaluation; when the quality evaluation result meets a preset grid connection condition, grid connection is carried out on the emergency power supply system; acquiring real-time device state parameters of the emergency power supply system to perform power supply capability evaluation calculation to obtain power supply duration of the emergency power supply system; and sending an equipment adjustment request according to the current time, the power supply duration and the predicted commercial power recovery time. In the invention, the emergency power supply system is an emergency generator car based on compressed air energy storage, the emergency generator car generates power based on compressed air, and the emergency generator car is pollution-free, low in noise and relatively low in power supply cost; whether the emergency power supply system meets the grid connection requirement or not is determined according to the quality evaluation result, the power supply time is determined through power supply capability evaluation calculation, and the reliability of emergency power supply is improved.

The present application discloses a floating nuclear power generation system in which an emergency power supply system is further strengthened. A floating nuclear power generation system according to the present disclosure comprises: a nuclear reactor; a turbine generator that is driven by steam generated by means of heat from the nuclear reactor; a floating body in which the nuclear reactor and the turbine generator are disposed, and that is moored offshore; and a floating body internal power supply system that has an emergency system which can feed power to prescribed nuclear reactor cooling equipment in at least a time of emergency, and a regular system which can feed power to equipment not connected to the emergency system, wherein regular power generation equipment that generates power by means of natural energy is connected to the emergency system.

An emergency power supply system comprising a hydraulic turbine (1) having a peripheral edge provided with blades or buckets (1B), said hydraulic turbine (1) being housed in a casing (2) adapted to be put under a vacuum, said casing (2) comprising or being associated with a collector (20) adapted to be put under vacuum and adapted to collect water propeled onto the blades or buckets (1B) of the turbine when generating the required emergency supply power.

The application relates to a switching device (10) for supplying a load (50) optionally in grid operation or in island operation, comprising: - a network connection (14) with a first phase conductor connection (14p) and a first neutral conductor connection (14n) for connecting an AC network (60), - an inverter connection (18) with at least two connection terminals (18p, 18p2, 18n) for connecting a bidirectional inverter (30), and - a load terminal (15) with a second phase conductor terminal (15p) and a second neutral conductor terminal (15n) for connecting the load (50), - a mains monitoring switch (11) with an actuating coil (11.1) connected to the mains connection (14) and a monostable contact (11.2) that can be actuated by the actuating coil (11.1), - an electromechanical switching unit (12) with an actuator (12.1), a first switching contact (12.2), in particular a normally closed first switching contact (12.2), and a positively guided auxiliary contact (12.6), wherein the first switching contact (12.2) is arranged in a connecting line between the first phase conductor terminal (14p) and a connection terminal (18p) of the inverter terminal (18) associated with the first phase conductor terminal (14p), and - a status terminal (16) with a connected electrical circuit (13) for signaling a state of the switching device (10). The application also relates to an emergency power system (100) with such a switching device (10) and a method for operating the emergency power system (100).

The invention relates to the technical field of auxiliary power distribution of emergency diesel generators of high-temperature gas cooled reactors, and discloses a circuit for controlling a fuel delivery pump of a diesel engine of a high-temperature gas cooled reactor nuclear power plant, which comprises the following steps of: connecting a power loss signal of a control power supply of a main fuel delivery pump with real fault signals such as thermal overload of a motor and short circuit of a power loop in parallel; and the normally open contact is connected in series with a normally open contact of a bus voltage monitoring relay of an auxiliary machine power distribution cabinet where the main pump is located, thereby realizing accurate screening of fault signals. When the auxiliary machine power distribution cabinet bus is electrified, the real fault triggers the standby pump to start; when the bus loses power, the standby pump is not triggered to start, and only the main fuel delivery pump is normally started after the bus recovers power supply. The problem that double pumps are started at the same time by mistake after the diesel generator is started to recover power supply of the auxiliary machine power distribution cabinet due to power loss of the emergency bus in the high-temperature gas cooled reactor emergency power supply system is solved, the standby function of the standby pump is guaranteed, equipment loss and maintenance cost are reduced, and the operation stability and reliability of the high-temperature gas cooled reactor emergency diesel generator set are improved.

The utility model relates to the technical field of generators, in particular to an emergency power supply system. The emergency power supply system comprises a variable frequency motor, a starting control module, an inverter, a starting motor, a power piece and an energy storage battery, the output end of the variable frequency motor is electrically connected with the input end of the inverter; a rotor of the variable frequency motor is in transmission connection with the power part; the starting control module is in communication connection with the inverter and the starting motor and is electrically connected with the energy storage battery. The inverter is in communication connection with the energy storage battery and is electrically connected with the power piece; the starting motor is electrically connected with the energy storage battery and is in transmission connection with the power piece, and the problems that the battery function is single, the load cannot be carried by instant overload of the generator, and the energy use efficiency is low can be solved.

The invention relates to the technical field of automobile emergency power supply fault detection, and discloses an automobile emergency power supply fault detection method and system, and the method comprises the steps: obtaining an original signal of a multi-dimensional parameter through a sensor network; classifying the working conditions according to the voltage and current fluctuation amplitude; the sampling frequency is adaptively adjusted according to the classification result; aiming at the enhanced data set, adopting a decision tree model to analyze a mutual influence relationship among parameters; voltage and temperature subsets are obtained from the abnormal combination identifier, and dynamic change abnormity is judged through cross validation; determining a fault type by adopting a fusion algorithm according to an anomaly judgment result; and finally, an alarm signal is sent to a vehicle control system. Through adaptive frequency adjustment and multi-parameter collaborative analysis, the accuracy and real-time performance of fault diagnosis are remarkably improved, and reliable operation of the automobile emergency power supply system is effectively guaranteed.

The application belongs to the technical field of aviation secondary power system, and discloses an airborne emergency power system based on N2O and an operation method thereof, wherein the system adopts fuel oil and oxygen produced after N2O decomposition to combust in a gas generator, so as to produce high-temperature and high-pressure gas as emergency power of an airplane; wherein, N2O is stored in an N2O high-pressure storage tank system, and a heat preservation device is arranged on the N2O high-pressure storage tank system to stabilize the N2O in liquid state. The application uses aviation kerosene and high-pressure and low-temperature N2O as fuel and oxidant, the fuel and oxidant system has the advantage of good compatibility with the airplane, N2O is heated and decomposed by using the impulse turbine exhaust waste heat, and the waste heat is recycled, so that the working time of the emergency power system and the system thermal efficiency can be effectively prolonged.

The utility model relates to the technical field of hot blowing snow removers, in particular to a vehicle-mounted power supply system of a hot blowing snow sweeper and a monitoring system of the vehicle-mounted power supply system, which comprises a main storage battery pack, a charging system, a vehicle-mounted power / lighting system, a vehicle-mounted instrument control system and a standby emergency power supply system, a charging module is arranged in the charging system, the charging system charges the main storage battery pack by an external power supply through the charging module, the emergency power supply system adopts a bearing vehicle storage battery, and the vehicle-mounted power / lighting system and the vehicle-mounted instrument control system supply power through the main storage battery pack or the bearing vehicle storage battery. According to the vehicle-mounted power supply system of the hot blowing snow sweeper and the monitoring system of the vehicle-mounted power supply system, the storage battery of the bearing vehicle is used as a standby emergency power supply of corollary equipment of the hot blowing snow sweeper and all electric equipment of an instrument system within limited time, so that a direct-current dual-power-supply framework is formed; and the power distribution grade requirements of domestic existing specifications and standards on important equipment are met.

It is easier to ensure a load size that can supply power during emergencies. [Solution] The emergency power supply system 100 is electrically connected to the power grid 90 that normally supplies power to the facility. A gas generator 111 and a power storage unit 121 are installed as emergency power supply devices. These devices can supply power in an emergency to loads 202 and 302, including household electrical appliances, within the facility that are normally supplied with power from the power grid 90, through the wiring that supplies power. The emergency power supply system 100 includes a harmonic reduction unit 140 connected to the wiring that reduces harmonic currents generated in household electrical appliances.

The invention relates to the technical field of emergency diesel generators of emergency power systems, and discloses a power supply circuit suitable for a standby emergency diesel generator set of a high-temperature gas cooled reactor nuclear power plant, and the power supply circuit is additionally provided with a standby emergency diesel generator which is connected to a working bus through an outlet circuit breaker. A standby diesel generator is connected with a transfer bus through an interconnection switch, the transfer bus is connected to two original emergency buses through feeder switches, and the two emergency buses are additionally provided with wire inlet switches led from the transfer bus, so that when any one original emergency diesel generator fails and is unavailable, the standby diesel generator can quickly replace the original emergency diesel generator to execute an emergency power supply function through switching operation; retreating of the unit operation mode is avoided, and the power generation economy, operation stability and accident safety of the nuclear power plant are improved.

The utility model discloses a charging pile emergency power supply system capable of being monitored and controlled in real time, which comprises a central processing unit (CPU), a communication system, a mains supply monitoring system, a power supply switching system, a voltage stabilizing and reducing system, a hardware restarting system, a charging control system and a super capacitor voltage equalizing system, the mains supply monitoring system is used for monitoring current signals of mains supply, the power supply switching system is used for switching circuits and connecting the mains supply or a standby power supply into the circuits, and the voltage stabilization and voltage reduction system is used for ensuring stable charging of the standby power supply. The charging pile is restarted by using the hardware restarting system in the standby power supply state, so that the charging pile ends the current order, uploads the charging data and unlocks the charging pile gun head, thereby solving the problem that the gun head is locked when the commercial power is cut off.

The application discloses an intelligent rapid emergency power supply system based on symbolic method for monitoring high-voltage short-circuit fault, and relates to the technical field of power supply.The system comprises a power supply module, a monitoring module located at the input end of the power supply module and a control module connected with the power supply module and the monitoring module respectively, the power supply module comprises a mains direct transmission unit, an abnormal emergency unit and an energy storage unit which are connected in parallel with each other, and the monitoring module comprises a first intelligent unit arranged on an A-phase power line, a second intelligent unit arranged on a B-phase power line and a third intelligent unit arranged on a C-phase power line; the monitoring module can capture characteristic information on the power lines of each phase at the moment of short-circuit instant of a high-voltage power grid, and the control module can switch the power supply mode of the output end of the power supply module according to the characteristic information, the switching time is less than 0.01 millisecond, and the power supply mode comprises a mains power supply mode, an emergency power supply mode and an energy storage power supply mode. By adopting the system, uninterrupted power supply can be ensured, and the safety and reliability are improved.

The patent right relates to a switching device (10) for supplying a load (50) optionally in grid operation or in island operation, comprising: - a mains connection (14) with a first phase conductor connection (14p) and a first neutral conductor connection (14n), - an inverter connection (18) with at least two connection terminals (18p, 18p2, 18n) for connecting a bidirectional inverter (30), and - a load connection (15) with a second phase conductor connection (15p) and a second neutral conductor connection (15n), - a network monitoring switch (11) with a monostable contact (11.2) that can be actuated by an actuating coil (11.1), - an electromechanical switching unit (12) with an actuator (12.1), a first switching contact (12.2) and a positively guided auxiliary contact (12.6), wherein the first switching contact (12.2) is arranged in a connecting line between the first phase conductor terminal (14p) and a connection terminal (18p) of the inverter terminal (18) associated with the first phase conductor terminal (14p), and - a status terminal (16) with a connected electrical circuit (13) for signaling a state of the switching device (10). The patent right also relates to an emergency power system (100) with such a switching device (10) and a method for operating the emergency power system (100).

The utility model relates to the technical field of photovoltaic industry, and discloses a bidirectional dcdc photovoltaic energy storage system, which comprises a photovoltaic panel. The photovoltaic panel is connected with the DC-DC bidirectional converter, the DC-DC bidirectional converter is respectively in bidirectional connection with the 10kv inverter and the storage battery pack, and the 10kv inverter is respectively connected with a power grid, a direct-current load and an alternating-current load. According to the utility model, the power utilization efficiency is ensured, the reliable power supply, environmental protection and energy saving are ensured through the storage battery, the clean and intelligent storage type emergency power supply system is constructed, and the power supply requirements under various working conditions can be met; and the system can supply power to the power grid through the storage battery in the power utilization peak period, and feed back the power grid to relieve the power utilization pressure.

The utility model discloses a mine emergency lifting frequency converter power supply and a mine emergency power supply system. The frequency converter power supply comprises a housing, a power device assembly, a capacitor assembly, a non-inductive bus board, a main control board, a terminal board and a voltage acquisition board. The shell is used for containing electrical elements. The power device assembly is arranged in the shell; the capacitor assembly is arranged in the shell, and the capacitor assembly and the power device assembly are arranged up and down in the shell; the non-inductive bus board is arranged in the shell and is connected with the capacitor assembly, the power device assembly and the quick connecting device; the main control board is installed in the shell and located on the front side of the power device assembly. The terminal board and the voltage acquisition board are installed in the shell and located on the front side of the capacitor assembly. The frequency converter power supply adopts a modular design, is compact in structural design and high in power density, meets the heat dissipation requirement of a power device, meets the requirements of electrical insulation and interference resistance, and is also convenient to mount and dismount.

The utility model discloses an emergency power supply system for a nuclear power plant. The system comprises a first emergency bus; the first working bus is connected with the first emergency bus; the first auxiliary bus is connected with the first working bus and is connected with the first emergency bus through the first working bus; and the conventional island emergency power supply system is connected with the first working bus, and the conventional island emergency power supply system comprises a transformer connected to the first working bus, a conventional island 380V emergency bus connected to the transformer, and a conventional island 380V diesel generator connected to the conventional island 380V emergency bus. According to the utility model, the capacity of the nuclear island diesel generator can be effectively reduced, the construction cost is reduced, and the reliability of the nuclear island emergency power supply is improved while the reliability of the conventional island emergency power supply is ensured.

The invention relates to a rapid switching decision management method and system for a thermal power plant emergency power supply. The method comprises the following steps: collecting and preprocessing emergency power supply system operation data, equipment vibration data, thermal power plant operation data and external environment data; according to a preset multi-class situation, setting a weight for the multi-source data at each moment and calculating a situation fusion degree; constructing a fault prediction model, and outputting a fault prediction result by taking the preprocessed data and the situation fusion degree as input; setting a plurality of candidate emergency power supply switching schemes such as standby commercial power and a diesel engine based on a prediction result, calculating a comprehensive score of each scheme, and selecting an optimal scheme; and power generation data is monitored in real time, and switching is automatically executed when a switching criterion threshold value corresponding to the scheme is reached, so that rapid, safe and stable switching of the emergency power supply is realized.

The application discloses an intelligent rapid emergency power supply system capable of automatically detecting cold online devices, relates to the field of modern power electronics, and comprises an information detection factor, an information switch module, a composite rapid switch, an intelligent controller, a mains direct transmission branch, an impact-resistant rectifier, an enhanced inverter, a filter, a smart battery unit, and monitoring instruments and switches. In view of the problem that certain abnormal probabilities exist in standard ISPS online components and cold online units, the application provides the intelligent rapid emergency power supply system capable of automatically detecting cold online devices, so that low-probability abnormal conditions of ISPS online devices and cold online units can be discovered in time, and the safety and reliability of the ISPS are further improved.

The invention particularly relates to a dual-power-supply switching circuit and method and an emergency power supply system, and the circuit is characterized in that the first end of a first switch assembly is connected with a first AC power supply, the second end of the first switch assembly is connected with a second AC power supply, and the third to fifth ends of the first switch assembly are connected with the first to third ends of a second switch assembly respectively; the sixth end of the first switch assembly is connected with a load; the control and detection system is connected with the first AC power supply, the second AC power supply, the first switch assembly and the second switch assembly, and is used for determining a target switch state of the second switch assembly according to a first fundamental wave voltage amplitude determined by the first AC power supply and a second fundamental wave voltage amplitude determined by the second AC power supply. And when the second switch assembly is in a fault state, the first switch assembly is switched to supply power to the load. Therefore, the problems of low dual-power-supply switching speed, inaccurate fault judgment and the like in related technologies are solved, and rapid and stable switching of the main power supply and the auxiliary power supply is realized.

The utility model relates to the technical field of generators, in particular to an emergency power supply system. The emergency power supply system comprises a variable frequency motor, a reverse dragging control module, an inverter, a power part and an energy storage battery, a rotor of the variable frequency motor is in transmission connection with the power part; the output end of the variable frequency motor is electrically connected with the input end of the inverter; the reverse dragging control module is electrically connected with the variable frequency motor and the inverter and is in communication connection with the inverter. The inverter is electrically connected with the power part and the energy storage battery, the generator can be started without starting a motor, the starting current is small, and the problems that the load cannot be carried due to instant overload of the generator and the energy use efficiency is low can be solved.