30 results about "Emergency power system" patented technology

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 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 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.

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 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 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 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.

The invention relates to the technical field of nuclear emergency power supplies, in particular to a self-driven thermoelectric power generation type nuclear emergency power supply, which comprises a thermoelectric power generation device, a heat source, a self-driven circulating pump, a nuclear power plant electrical system and a cooling water tank, natural circulation is established between the thermoelectric power generation device and the heat source; a cold side heat exchange unit of the thermoelectric power generation device is connected with a cooling water tank through a pipeline, the cooling water tank is sequentially connected with a self-driven circulating pump and the thermoelectric power generation device through pipelines, and forced circulation is established between the thermoelectric power generation device and the cooling water tank through the self-driven circulating pump; the thermoelectric power generation device is electrically connected with a nuclear power plant emergency power system. The system utilizes the temperature difference between a heat source and a cold source of a nuclear power plant to generate power, and the nuclear emergency power supply has continuous natural circulation capability within 72 hours after a power failure accident of the whole plant under different nuclear power unit application schemes. The circulating pump is powered by the nuclear emergency power supply, an external power source is not needed, the risk of active equipment failure under power failure of the whole plant is avoided, and the system independence is improved.

The utility model provides an energy storage emergency power supply system carrying a fuel cell, comprising a fuel cell, a cell energy storage module, a first PCS inversion module, a second PCS inversion module, a first DC / DC conversion module, a second DC / DC conversion module and an energy management module, the fuel cell is respectively in circuit connection with the first PCS inversion module and the first DC / DC conversion module, and the cell energy storage module is in circuit connection with the second PCS inversion module and the second DC / DC conversion module. The battery energy storage module is respectively in circuit connection with the first DC / DC conversion module, the second DC / DC conversion module and the second PCS inversion module, the battery energy storage module is in communication connection with the fuel battery, and the energy management module is respectively in communication connection with the first PCS inversion module, the second PCS inversion module, the first DC / DC conversion module, the second DC / DC conversion module and the fuel battery. The self-generating and self-using functions of the energy storage emergency power supply system can be realized based on self-generating of the fuel cell, self-charging and electricity storage of the cell energy storage module and alternating current and direct current hybrid conversion between the PCS inversion module and the DC / DC conversion module, and redundant electric energy can be stored.

The invention relates to the field of hybrid power mine emergency power supply system control, and discloses a mine hybrid emergency power supply system capable of realizing seamless switching and a control method. The method comprises the following steps: firstly, establishing a multi-time scale prediction model through a dynamic model reconstruction technology, and carrying out precise mathematical modeling on a microgrid switching process; secondly, performing decomposition acceleration calculation on a mixed integer programming problem by adopting a parallel solving framework, and realizing rapid solving of a control strategy in combination with hardware acceleration; thirdly, constructing a resource dynamic allocation mechanism, and optimizing system computing resource utilization efficiency through a self-adaptive scheduling algorithm; and finally, deploying a delay self-correction module to carry out real-time compensation on signal transmission delay. According to the method, the problem of decision delay caused by overload calculation of a traditional model prediction control algorithm is effectively solved, the system switching decision time is shortened to be within the international standard requirement range, the 20ms-level seamless switching capacity of the mains supply and the energy storage power supply system is achieved, and the reliability and safety of the mine emergency power supply system are remarkably improved.

The utility model relates to a kind of power plant composite emergency power supply system, comprising: emergency bus is connected with station service power supply system, emergency diesel generator set, battery energy storage system and electric load respectively;Emergency switching component is connected between the power supply circuit of emergency diesel generator set and emergency bus and the power supply circuit between battery energy storage system and emergency bus respectively, to switch battery energy storage system for electric load emergency power supply when station service power supply system fails and emergency diesel generator set does not complete starting;And after emergency diesel generator set completes starting, switch emergency diesel generator set for electric load emergency power supply, for reducing the wear caused by rapid starting of emergency diesel generator set, and then the service life of emergency diesel generator set can be improved.

The invention discloses a multi-directional topological alternating current and direct current intelligent conversion emergency power supply system and a working method thereof, and the method comprises the steps: a redundancy design module configures redundant solid-state relays in solid-state relay matrixes of all emergency power supply terminals according to historical use frequencies and historical fault frequencies of various energy load connection modes; the data acquisition module acquires energy state characteristics, load demand characteristics and solid-state relay state data of each emergency power supply terminal in real time under set energy and load operation constraint conditions; the energy path decision module is used for generating an optimal energy transmission path for each emergency power supply terminal to realize various energy load connection modes, and generating an action instruction of a solid-state relay associated with the optimal energy transmission path; and the composite control module is used for determining a load abrupt change type according to the operation monitoring data of each emergency power supply terminal, if the load abrupt change type is a non-solid-state relay fault, voltage compensation is carried out, and the response speed and the control precision of the emergency power supply are remarkably 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 reverse dragging control module, an inverter, an energy storage inverter, 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, and the reverse dragging control module is electrically connected with the variable frequency motor, the inverter and the energy storage battery. The inverter is electrically connected with the power part and the energy storage inverter and is in communication connection with the energy storage inverter; the energy storage inverter is electrically connected with the energy storage battery, the output end of the energy storage inverter is electrically connected with the output end of the inverter, the generator can be started without starting the motor, the starting current is small, and the problem of low energy use efficiency can be solved.

The application belongs to the technical field of aviation secondary power system, and discloses an airplane emergency power system based on water enhancement technology and a running method thereof, wherein the system adopts fuel and high-pressure air cylinder gas supply to carry out combustion, drives impulse turbine to rotate to generate airplane emergency power, and supplies energy for airplane emergency hydraulic pump and generator; wherein, when fuel and air are mixed and combusted in a gas generator, water is sprayed in the gas generator to take water as combustion refrigerant, and the amount of compressed air used by unit gas generated after combustion of the gas generator is reduced. The application uses aviation kerosene and high-pressure air as fuel and oxidant, has the advantage of good compatibility with airplanes, and does not use expensive catalyst, thereby avoiding problems such as catalyst failure, short system life, expensive catalyst and the like.

The invention relates to a method (100) for operating an emergency power supply system (10) for the, in particular temporary, provision of electrical power (P el,Ges ) in an island grid (50), comprising at least one motor generator (12) for providing a first electrical power (P el,1 ) and at least one auxiliary unit (13) to provide a second electrical power (P el,2 ), wherein the support unit (13) includes at least one electrical energy storage device (13.1) for providing the second electrical power (P el,2 ) includes the procedure (100) encompassing: - Providing (110) an initial electrical power (P el,1 ) by the motor generator (12), - Detection (120) of a mains frequency (f) in the island grid (50), in particular by at least one voltage sensor (15), - Providing (130) a second electrical power (P el,2) by the support unit (13) when the grid frequency (f) exceeds an upper grid frequency limit (f G,O ) reaches or falls below.

To provide a safer emergency power supply system that is low-cost and easy to install. [Solution] The main input terminal 100 on the box case 15 is connected to the target branch switch 81 by the first main wiring 41, and the load terminal 101 is connected to the specific load 9 by the second main wiring 42. The first selection terminal 11 of the main switch 10 is connected to the main input terminal 100 and also to the battery input terminal 103, the second selection terminal 12 is connected to the battery output terminal 104, and the common terminal 13 is connected to the load terminal 101. When the second selection terminal 12 is short-circuited to the common terminal 13, the portable battery 2 is interposed in series between the target branch switch 81 and the specific load 9. When removing the portable battery 2, the main switch 10 short-circuits the first selection terminal 11 to the common terminal 13. An additional switch 16 for selecting short-circuit or open-circuit the line is provided on the battery input line 43 connecting the main input terminal 100 and the battery input terminal 103.

The invention discloses a double-winding induction generator system and a grid-connected control method thereof, and belongs to the technical field of generator grid-connected control. A system unit of the duplex-winding induction generator system comprises an energy storage module, a static excitation converter, a duplex-winding induction generator, an engine and a grid-connected switch. The grid-connected control method comprises the steps that before grid connection, an orientation angle is calculated through phase locking and voltage and current sampling, winding current is adjusted and controlled through double-closed-loop control of a voltage outer loop and a current inner loop, power winding voltage and power grid voltage are made to be synchronous, and low-impact grid connection is achieved; after grid connection, grid following power control is switched, the output power of the energy storage device and the output power of the engine are independently adjusted through an energy storage power outer ring and a generator power outer ring, and flexible and accurate dispatching of system power is achieved. According to the invention, the grid-connected impact is effectively inhibited, the grid-connected reliability, the operation stability and the power control flexibility of the system are improved, and the method is suitable for mobile energy equipment, emergency power supply systems and other scenes.

Method for mounting at least one assembly (10) comprising at least one measuring port (12, 14) for passing an exhaust gas probe and a saddle plate (16) having at least one through-opening (18), wherein the measuring port (12, 14) is attached to the saddle plate (16) at the edge of one of the through-openings (18), on an exhaust pipe (48) of an emergency power supply system comprising an internal combustion engine, wherein the emergency power supply system is kept ready for operation during the execution of the mounting steps, and wherein the method (100) comprises at least the following steps: Producing (106) at least one measuring opening (22) on the exhaust pipe (48); and attaching (108) the saddle plate (16) of each assembly (10) over each measuring opening (22) without welding.

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 power 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.