231 results about "Emergency power system" patented technology

This invention measures the exact value of impedance voltage (Vis) from AC actual waveform (VSM) which includes ripple noise voltage, and suggests the inventive circuits and softwares capable of acquiring the effective resistance of battery internal impedance and the operational algorithm of the diagnosis for the expected life of battery string. In accordance with a series of functional operations and the execution of the program in MPU, this diagnostic system can find the cause of aging progress in advance and settle by unmanned monitoring the healthiness of emergency power system always in real time at remote site.

Aspects of the present disclosure generally relate to systems and methods for managing and monitoring a plurality of emergency power supply systems (EPSS's) at a facility via an emergency power management system (EPMS). The EPMS generally comprises EPSS equipment, a management computer system for managing, monitoring, and testing the operational characteristics of the EPSS equipment, and a plurality of interface modules for providing unified communication capabilities between the management computer system and the EPSS equipment. Additional aspects relate to methods for easily and efficiently creating and installing an EPMS at a facility. Further aspects are directed to providing predictive analyses related to the EPSS equipment. Also, aspects of the present disclosure relate to normalizing EPSS equipment information across varying vendors, makes, and models of equipment so as to provide a unified view of all equipment across a given facility.

A modular emergency power system architecture (200) with a plurality of output power supply lines for feeding power to a destination, in which the operational status of each output power supply line is configurable. The architecture comprises a plurality of load bars (208, 209) from which power is delivered to the destination. The load bars (208, 209) are selectively connectable to send power to or receive AC power from a mains supply (202) and / or a DC bus (210) via one or more AC / DC power conversion modules (212, 214). The DC bus (210) is connected to receive a secondary (e.g. emergency) power supply (218, 224). The architecture may provide redundancy and on-the-fly reconfigurability to complement changes in the physical location of critical components in the destination, e.g. caused by virtualisation, zoning or repair. The architecture is operable as a stand-alone uninterruptible power supply (UPS) or as an extended runtime generator for an existing UPS.

A turbine engine emergency power system includes low and high pressure spools, the lower pressure spool including a low pressure compressor. A turbofan is coupled to the low pressure spool. The turbofan drives the low pressure spool in a windmill condition in which the low pressure turbine fails to provide rotational drive to the turbofan. A generator is rotationally driven by the low pressure spool in the windmill condition. A gear train is used to increase the speed of the generator in one example. In one example embodiment, a centrifugal clutch is used to selectively decouple the generator from the low pressure spool at a predetermined engine speed, which corresponds to normal operating speeds when the turbine engine is under power.

The invention relates to a portable emergency starting power supply, which comprises an insulated shell, a small-volume high-power battery pack which is arranged in the insulated shell, a relay protection circuit, a battery management system, an alternating-current / direct-current (AC / DC) conversion circuit and an automobile universal power supply plug which is connected with the anode and the cathode of the battery pack and is matched with a vehicle cigarette lighter. A liquid crystal display (LCD) is arranged outside the shell and can digitally display current residual electricity quantity, battery pack voltage, battery pack current and the working state of an AC / DC converter. An external assistant line which is connected with the anode and the cathode of the battery pack is arranged on the shell. When an automobile cannot be started because storage batteries are exhausted or the performance of the storage batteries is seriously decreased, the plug of the emergency power supply provided by the invention is only required to be inserted into the jack of the cigarette lighter, or the external assistant line which is connected with the anode and the cathode of the battery pack is directly connected to the anode and the cathode of a target storage battery, the automobile can be started immediately. The portable emergency starting power supply has the characteristics of immediate starting, light weight, small volume, no spark, intelligent management, high safety and the like.

The invention provides an intelligent energy storage type emergency power supply system, and relates to power supply systems. In the system, the input end of a battery charger is connected with the input end of a 380VAC main power supply through a rectifier switch, the output end of the battery charger is connected with one end of a battery switch and the input end of an inverter, the other end of the battery switch is connected with a backup lithium-ion power supply, the output end of the inverter is connected with the inversion input end of a static transfer switch, the bypass input end of the static transfer switch is connected with the input end of the 380VAC main power supply through a commercial power bypass switch, the output end of the static transfer switch is connected with the input end of an output switch, the output end of the output switch is connected with a load, one end of a maintenance bypass switch is connected with the input end of the 380VAC main power supply, and the other end of the maintenance bypass switch is directly connected with the load. The intelligent energy storage type emergency power supply system is an energy storage type power supply integrating charging, discharging and monitoring, and has the advantages of being environmentally friendly, energy saving, free of pollution, and capable of supplying power incessantly.

A turbofan engine (10) employs a flow control device (41) that changes an effective exit nozzle area (40) associated with a bypass flow path (B) of the turbofan engine. A spool (14) couples a fan (20) to a generator (52). The turbofan emergency power system includes a controller (50) that communicates with the flow control device (41). Upon sensing an emergency condition, the controller manipulates the flow control device to reduce the effective nozzle exit area (40) of the bypass flow path, which chokes the flow through the bypass flow path thereby increasing the rotational speed of the fan. In this manner, the generator is driven at a higher rotational speed than if the flow through the bypass flow path was not choked, which enables a smaller generator to be utilized.

An improved emergency power system is disclosed for providing electrical power to a load such as a blowout preventer of a petroleum drilling apparatus. The improved emergency power system comprises a thermal battery having an anode and a cathode with a separator containing an electrolyte disposed therebetween. An internal heat layer is located in proximity to the separator containing the electrolyte. A squib is provided for activating the internal heat layer. The thermal battery remains dormant until the squib is energized to ignite the squib enabling the heat layer to render the electrolyte molten thereby activating battery to provide electrical power to the load. The squib may be energized remotely, mechanically or electrically.

An emergency power system may provide hydraulic and electrical power to an aircraft in the event of a failure of the aircraft's primary control power system. The system may be constructed as a ram air turbine in which a single ram air fan may drive both a hydraulic pump and an electrical generator. A unique gearbox may incorporate compound gearing to permit the pump and the generator to be driven at different speeds. Thus the pump and the generator may be driven at their respective optimum speeds. The pump and the generator may be detachably mounted on a gearbox that supports the ram air fan. The detachable mounting of the pump and generator may accommodate ease of maintenance of these items. The gearbox may be provided with a ground testing port through which rotational testing force may be introduced to a shaft that supports the ram air fan. This may permit ground level testing of the system. Ground level testing may reduce a need to perform periodic in-flight testing of the system.

The invention discloses a method for detecting an input phase failure of a three-phase input device, wherein the method is suitable for phase failure detection of three-phase input devices such as a frequency converter, an EPS (Emergency Power System) and the like. The method comprises the steps of rectifying and filtering a three-phase input voltage of the three-phase input device and then obtaining a DC (Direct Current) busbar voltage; sampling the DC busbar voltage at a certain time interval t, wherein t is less than and equal to 1 / 6 of an input power supply cycle; when n continuously monotonous sampled voltage values occur in the sampled voltage values, judging that the input phase failure exists; and when any n continuously monotonous sampled voltage values do not exist in the sampled voltage values, judging that no input phase failure exists. Compared with the traditional detection method, the method for detecting the phase failure, provided by the invention, dispenses with a special hardware circuit, so that the cost is saved; and simultaneously, the sampled DC busbar voltage is detected in the method by software, so that and the method achieves the advantages of high reliability, flexible design, suitability for various power grid conditions and less EMC (Electro Magnetic Compatibility) interference.

Fuel cell emergency power systems comprising a fuel cell having an anode and a cathode, a power distribution unit for selectively directing electrical current from the fuel cell to one or more consuming device, a hydrogen gas control system and an oxygen gas control system. The hydrogen gas control system includes a pressurized hydrogen tank providing hydrogen gas in selective fluid communication to the anode, a hydrogen gas-liquid water phase separator in downstream fluid communication with the anode, and a hydrogen recirculation pump for recirculating substantially liquid water-free hydrogen from the hydrogen gas-liquid water phase separator to the anode. Similarly, the oxygen gas control system includes a pressurized oxygen tank providing oxygen gas in selective fluid communication to the anode, an oxygen gas-liquid water phase separator in downstream fluid communication with the anode, and an oxygen recirculation pump for recirculating substantially liquid water-free oxygen from the oxygen gas-liquid water phase separator to the anode.

A turbine engine emergency power system includes low and high pressure spools, the lower pressure spool including a low pressure compressor. A turbofan is coupled to the low pressure spool. The turbofan drives the low pressure spool in a windmill condition in which the low pressure turbine fails to provide rotational drive to the turbofan. A generator is rotationally driven by the low pressure spool in the windmill condition. A gear train is used to increase the speed of the generator in one example. In one example embodiment, a centrifugal clutch is used to selectively decouple the generator from the low pressure spool at a predetermined engine speed, which corresponds to normal operating speeds when the turbine engine is under power.

The invention discloses a control method for an electromobile group-charging microgrid simultaneously serving as an emergency power supply. According to the control method, an electromobile group-charging system mainly serving for large-scaled slow charging is built by taking a high-capacity energy storage array as a core control object. The control method comprises the following steps of inserting a vehicle-mounted AC charging head into an intelligent charging socket by a charging user, and inputting account information to the system through a connected information terminal; leading the socket to be connected so as to start a charging process by an electromobile group-charging management module when an account is valid and the total charging capacity does not exceed the designed capacity; and maintaining the power of a network accessed transformer within a given range by a power adjustment module through charging and discharging control on the energy storage array, wherein different energy storage battery levels and different power grid supply states are in correspondence to different ranges of charging interruption. By the control method, charging sockets installed for 100% parking spaces in a region are supported, the requirement of safe and reliable charging under charging simultaneity characteristic and dynamic capacity increase is met, meanwhile, the outage of a user is delayed when a power grid is cut off, and the long-term emergency power supply capability is provided.

Belonging to high frequency inversion technical area of electric grid, the disclosed DC-DC convertor connected between electric supply and load provides high frequency emergency power source with no transformer in line frequency, and using battery in low voltage. Technical characters are: adding a stage of DC-DC convertor between battery and inversion part; controller uses one or more combinations from MCU / DSP / FPGA to constitute digital circuit; real time detecting multiplexing signals of voltage or current, including communication and control panel interfaces. The invention improves stability and precision of AC output power supply. Advantages are: high system efficiency, high power density, good control precision, easy of use and maintenance. Moreover, using high frequency PWM technique and dedicated software, the invention reduces investment on hardware.

The invention relates to a safety-level emergency power supply system of a nuclear power station, and provides a 1E-level diesel generating set. The 1E-level diesel generating set comprises a diesel engine, a generator, a flywheel guard, an elastic coupler, a public base, a vibration isolator, a starting air motor, an electric control cabinet set, a storage battery pack and an external cooling device. The system provided by the invention is small in torsional vibration impact, good in vibration attenuation and earthquake resistance, high in starting reliability, good in cooling effect and wide in output power range, can be started within a regulated time during earthquake and (or) after earthquake, and automatically or manually operates continuously with loads to satisfy demands of the emergency power supply system to set performance and various powers.

An emergency power system comprising a plurality of solid propellant gas generators each having a gas outlet in fluid communication with a turbine wheel rotationally disposed within a gas turbine housing, the turbine wheel being in rotational communication with an electric generator input shaft, a fluid pump input shaft, or both. A method of producing power from such an emergency power system is also disclosed.

The invention discloses a multifunctional off-grid type charging pile using methanol as fuel. The multifunctional off-grid type charging pile comprises a whole vehicle control system, a motor control system, an intelligent electric distribution system, an electric vehicle motor, a battery managing system, a fuel supply system, a fuel battery system, an intelligent charging pile, an emergency electric source system, and a power battery system, wherein the whole vehicle control system is connected with the motor control system, the battery managing system, the fuel battery system and the power battery system; the motor control system is connected with the intelligent electric distribution system and the electric vehicle motor; the intelligent electric distribution system is connected with the battery managing system, the fuel battery system, the intelligent charging pile, the emergency electric source system and the power battery system. According to the multifunctional off-grid type charging pile using methanol as fuel disclosed by the invention, alcohol hydrogen fuel which is free from pollution is used for solving the problems of the endurance of an electric vehicle, the charging of the electric vehicle and the electric supply of a communication base station, and the multifunctional off-grid type charging pile has the characteristics of being convenient to operate, short in starting time, long in charging time, low in occupied space, light in weight, low in noise, free from pollution and the like.

An integrated hybrid emergency power system having various features is disclosed. A hybrid emergency power system may have an auxiliary power unit and an emergency power unit. The emergency power unit may have a fuel cell. The auxiliary power unit may have an engine. The emergency power unit may be connected to the auxiliary power unit by an emergency power unit efficiency improvement apparatus. In this manner, the operating efficiency of the emergency power unit may be enhanced.

The invention provides a novel digital EPS fire emergency power system based on a DSP, which comprises a mains input end, a battery-powered patrol digital charging module connected with the mains input end, a storage battery connected with the battery-powered patrol digital charging module, an inverter connected with the storage battery, a changeover switch connected with the inverter and the mains input end and connected to load equipment for switching the power supply of the load equipment between the mains input end and the inverter, and a controller respectively connected with the mains input end, the battery-powered patrol digital charging module, the storage battery and the inverter, wherein the controller further comprises a signal detection module for detecting the voltage and current of the mains, the storage battery and the inverter. The system is high in reliability and stability.

An automated emergency power supply system (EPSS) and testing solution that records generator load values and engine exhaust temperature values to evaluate whether an EPSS test satisfies legislated test criteria. The EPSS test is carried out under software control, which initiates a test by instructing an automatic transfer switch (ATS) to change its status to a test status, causing the essential loads to be powered by a generator instead of a main utility power source. Power monitors record the ATS and generator status during the test as well as electrical parameter data from the ATS and generator and exhaust temperature data and other engine parameter data from the generator. When the test is concluded, the ATS is instructed to return the status to normal so that power delivery is resumed from the main power source. The electrical and engine parameter data is analyzed and compared against legislated test criteria to determine a pass / fail result of the EPSS test.

A power source is provided for a resistive heating element that heats a catalyst bed of a reactor that receives a monopropellant fuel and reacts the fuel in the presence of the catalyst bed to provide hot gas driving a turbine. The power source is a capacitor that discharges its charge across the resistive heating element so that its temperature is elevated to a point where the reaction of the monopropellant fuel occurs. The power source may be used in airborne applications, such as emergency power systems for aircraft, where it is desirable to minimize the weight of the unit and to allow the unit to use safer monopropellant fuels.

The invention discloses a rail transit emergency power supply system and a control method, belonging to the technical field of rail transit power supply. The invention mainly comprises a matching design of a D-series high-speed train emergency power supply system and a hybrid power control method, wherein the emergency power supply system mainly comprises a fuel cell system, an energy storage device, an energy controller and the like. The matching design is mainly based on the running line of D-series high-speed trains under the emergency mode and the power and energy under vehicle parametersas constraint conditions, and the volume cost is used as the objective function for performing matching design to obtain a scheme of D-series high-speed train emergency power system. According to theinvention, the emergency power supply system of the D-series high-speed train can be effectively designed and controlled, the electric energy demand under the emergency situation is satisfied, and theenergy utilization efficiency is improved.

An emergency lighting system includes a plurality of emergency lights and a plurality of emergency power systems. Each of the plurality of emergency power systems is electrically connected to a respective one of the plurality of emergency lights through a respective one of a plurality of power switches. The emergency lighting system also includes a plurality of processors. Each of the plurality of processors is electrically connected to a respective one of the plurality of emergency power systems and executes software that monitors a status of a respective one of the emergency power systems and controls a state of the plurality of power switches. The emergency lighting system also includes a plurality of radio transceivers. Each of the plurality of radio transceivers is electrically connected to a respective one of the plurality of processors and communicates with other radio transceivers in the plurality of radio transceivers that are in radio wave proximity. In addition, a gateway node radio transceiver routes signals to and from the plurality of radio transceivers.

An emergency power system may provide hydraulic and electrical power to an aircraft in the event of a failure of the aircraft's primary control power system. The system may be constructed as a ram air turbine in which a single ram air fan may drive both a hydraulic pump and an electrical generator. A unique gearbox may incorporate compound gearing to permit the pump and the generator to be driven at different speeds. Thus the pump and the generator may be driven at their respective optimum speeds. The pump and the generator may be detachably mounted on a gearbox that supports the ram air fan. The detachable mounting of the pump and generator may accommodate ease of maintenance of these items. The gearbox may be provided with a ground testing port through which rotational testing force may be introduced to a shaft that supports the ram air fan. This may permit ground level testing of the system. Ground level testing may reduce a need to perform periodic in-flight testing of the system.

An electric actuation system for an emergency power system of an aircraft includes a motor control portion, a motor brake, a motor in electrical communication with the motor control portion, mechanical gearing in mechanical communication with the motor, the mechanical gearing configured to translate rotational motion of the motor into linear motion across at least one axis, and an extension member in mechanical communication with the mechanical gearing, the extension member configured to linearly travel across the at least one axis.

An automated emergency power supply system (EPSS) and testing solution that records generator load values and engine exhaust temperature values to evaluate whether an EPSS test satisfies legislated test criteria. The EPSS test is carried out under software control, which initiates a test by instructing an automatic transfer switch (ATS) to change its status to a test status, causing the essential loads to be powered by a generator instead of a main utility power source. Power monitors record the ATS and generator status during the test as well as electrical parameter data from the ATS and generator and exhaust temperature data and other engine parameter data from the generator. When the test is concluded, the ATS is instructed to return the status to normal so that power delivery is resumed from the main power source. The electrical and engine parameter data is analyzed and compared against legislated test criteria to determine a pass / fail result of the EPSS test.