CN111697685A - Power supply system and method based on electric vehicle power storage array and hydrogen fuel cell - Google Patents
Power supply system and method based on electric vehicle power storage array and hydrogen fuel cell Download PDFInfo
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 131
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 131
- 238000003860 storage Methods 0.000 title claims abstract description 92
- 239000000446 fuel Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 10
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- 238000012806 monitoring device Methods 0.000 claims description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
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- 231100000331 toxic Toxicity 0.000 claims description 15
- 230000002588 toxic effect Effects 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 12
- 230000004083 survival effect Effects 0.000 claims description 7
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B13/00—Special devices for ventilating gasproof shelters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/76—Oxygen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Thermal Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides an emergency power supply system and method based on coupling of an electric automobile power storage array and a hydrogen fuel cell, wherein the system comprises two power supplies of a distributed electric automobile power storage array and the hydrogen fuel cell; the distributed electric automobile power storage array is connected to the input end of a double-power-supply switching device through a first inverter, the hydrogen fuel cell is connected to the input end of the double-power-supply switching device through a second inverter, and the output end of the double-power-supply switching device is connected to a multi-path civil air defense equipment distribution box. The power battery of the electric automobile parked in the underground garage at ordinary times is taken as a unit to form a distributed electric automobile power storage array, and on the basis, the power battery is combined with the hydrogen fuel cell to form a main emergency power supply system and a standby emergency power supply system, so that the power supply reliability of the civil air defense engineering in wartime can be greatly improved.
Description
Technical Field
The invention relates to an emergency power supply system and method based on coupling of an electric vehicle power storage array and a hydrogen fuel cell, and belongs to the field of building emergency power supply, in particular to the field of civil air defense engineering power supply.
Background
The civil air defense engineering is an underground protective building which is independently built for guaranteeing shelter of war time personnel and materials, civil air defense command and medical aid, and a basement which is built by combining ground buildings and can be used for air defense during war time. The civil air defense engineering is an important facility for preventing enemies from attacking suddenly, effectively masking personnel and materials and preserving the war potential; the method is an engineering guarantee for adhering to town battles and supporting anti-aggression wars to victory for a long time.
With the popularization of household automobiles, underground garages are mostly built in newly-built residential, office and commercial buildings, are used for parking at ordinary times and serve as civil air defense projects for shielding personnel and materials in wartime, and the underground garages are generally used as the civil air defense projects. For example, residential districts are generally provided with underground garages which are also used as civil air defense projects, and the underground garages which are used for residents to park private cars in the residential districts at ordinary times are used as civil air defense spaces sheltered by resident family members in wartime.
The civil air defense engineering is internally provided with a plurality of electric devices and facilities such as an exhaust fan, a toxin filtering fan, a decontamination water pump, illumination, evacuation indication and the like, and the civil air defense power supply ensures the normal operation of the civil air defense devices and facilities. If the civil air defense equipment and facilities are subjected to power interruption, the following adverse consequences can be caused: when the first-level electrical load is powered off in the war of civil air defense engineering, the life safety of personnel is threatened, the normal work of a communication system and an alarm system is seriously influenced, the order of the personnel is seriously disordered or panic, the living environment of the personnel is influenced, and the normal work of medical rescue engineering, air defense professional engineering, personnel masking engineering and supporting engineering is seriously influenced.
Therefore, according to the relevant specifications, in order to prevent the interruption of power supply caused by the destruction of an external power supply during the war, the primary electric load of the civil air defense engineering war is powered by at least two independent power supplies, wherein one independent power supply is a power supply inside the civil air defense engineering war and is mainly an internal power supply. The secondary electric load of civil air defense engineering during war should lead and connect regional power supply in addition to the electric power system power supply of ground building, when lead and connect regional power supply have difficulty, should set up the self-contained power supply in civil air defense engineering.
At present, a diesel generator, a UPS or an EPS power battery pack is generally adopted as a standby power supply in civil air defense engineering. However, the diesel generating set has the following problems: the energy efficiency is lower, and the oil reserve is limited, and duration is short, and when external power supply was destroyed in wartime, the civil air defense engineering power supply had higher outage risk if only relied on diesel generator single power supply. In addition, the dependence of petroleum in China on the outside is high, once wars occur, military and civil petroleum supply is very short, the difficulty in supplying high-quality diesel oil to a large number of civil air defense projects is very high, and the difficulty in filling the diesel oil in time after an oil tank is exhausted is high, so that the reliability of a diesel oil supply system is reduced. The UPS or EPS power battery pack power supply has the following problems: the UPS or EPS power battery pack has high manufacturing cost and small storage capacity; the EPS and UPS self-contained power supply equipment specially designed for supplying power to the primary and secondary electric loads in wartime is not generally installed at ordinary times, only wiring and installation positions are reserved, the time requirement for installing the EPS and UPS self-contained power supply equipment for a large number of civil air defense projects in wartime is long, and the situations of insufficient supply or long supply period are easy to occur.
In view of the above, there is a need to develop a power supply system that can meet the power supply requirements of the first and second-stage electrical loads during civil air defense engineering war.
Disclosure of Invention
The invention aims to provide an emergency power supply system and method based on coupling of an electric automobile power storage array and a hydrogen fuel cell.
In order to achieve the above object, in a first aspect, the present invention provides an emergency power supply system based on coupling of an electric vehicle power storage array and a hydrogen fuel cell, including two power supplies of a distributed electric vehicle power storage array and a hydrogen fuel cell; the distributed electric automobile power storage array is connected to the input end of a double-power-supply switching device through a first inverter, the hydrogen fuel cell is connected to the input end of the double-power-supply switching device through a second inverter, and the output end of the double-power-supply switching device is connected to a multi-path civil air defense equipment distribution box.
Further, distributed electric automobile power storage array is including arranging the multiunit power battery in a plurality of electric automobile in, each group power battery is connected to and charges and receives the electric crane span structure through charging the socket and charging and receiving the electric pile, charge receive the electric crane span structure and be connected to electric automobile respectively charge the switch board with first dc-to-ac converter.
Furthermore, the electric vehicle charging power distribution cabinet is connected to the charging and receiving bridge frame through a remote control isolating switch; and a civil air defense power supply monitoring device is connected between the input end and the output end of the double power supply switching device.
Furthermore, the civil air defense power supply monitoring device is respectively connected to each of the two power supplies through a remote control isolating switch; and each path of civil air defense equipment distribution box is connected to the output end of the double-power-supply switching device through a remote control isolating switch.
Further, hydrogen fuel cell lays indoor hydrogen monitor and the explosion-proof exhaust fan II of emergency that is equipped with, when hydrogen fuel cell indoor volatile hydrogen concentration exceeded predetermined safety range, hydrogen monitor sent alarm signal, and the explosion-proof exhaust fan II of emergency is started in the interlock, with indoor gas discharge to people's air defense electric power with the ventilation shaft in, and then the discharge is outdoor.
Further, the hydrogen fuel cell is connected to a liquid hydrogen storage tank, a liquid hydrogen residual amount monitor is arranged in the liquid hydrogen storage tank, and the liquid hydrogen residual amount monitor is electrically connected to the civil air defense power supply monitoring device.
Furthermore, a temperature and humidity monitor, an oxygen monitor, a toxic and harmful gas monitor and CO are arranged in the civil air defense project2A monitor for monitoring temperature and humidity, oxygen concentration, toxic and harmful gas and CO when the temperature and humidity do not meet preset values2When the value is higher than the preset value, an alarm signal is sent out; after receiving the alarm signal, the civil air defense power supply monitoring device enters the civil air defense projectForced ventilation, heating or cooling is carried out until a temperature and humidity monitor, an oxygen monitor, a toxic and harmful gas monitor and CO are detected2The corresponding parameter monitored by the monitor returns to the preset normal level.
And furthermore, radiation temperature sensors are respectively arranged right above the power batteries of each group and used for monitoring the temperature of the power batteries during charging, and when the temperature exceeds the limit, the power batteries are automatically disconnected from the charging and receiving pile and an alarm is given out.
The invention provides an emergency power supply method based on coupling of an electric vehicle power storage array and a hydrogen fuel cell, wherein a distributed electric vehicle power storage array and the hydrogen fuel cell are adopted to supply power to civil air defense engineering electric equipment; the two power supplies are mutually standby, and when one power supply fails, the other power supply is automatically switched to.
Further, the device is suitable for operating according to the following working conditions:
(1) the distributed electric automobile power storage array circularly supplies power: a distributed electric automobile power storage array and a double-power-supply switching device are used for supplying power to a civil air defense power supply line and civil air defense equipment;
(2) the distributed electric automobile storage array and the hydrogen fuel cell are combined to supply power efficiently: firstly, a distributed electric vehicle power storage array with the residual electric quantity not less than 50% and five power supply switching devices are used for supplying power to a civil air defense power supply line and civil air defense equipment; when the electric quantity of the distributed electric automobile power storage array reaches 50%, stopping supplying power to the distributed electric automobile power storage array, and starting a hydrogen fuel cell to supply power to the civil air defense equipment; when the electric power used by the civil air defense equipment is lower than the power supply power of the hydrogen fuel cell, the hydrogen fuel cell is used for charging the power cell of the electric vehicle in the distributed electric vehicle power storage array; when the load of the civil air defense equipment is greater than or equal to the power supply power of the hydrogen fuel cell or the power battery of the electric vehicle is fully charged, the charging is finished, and the hydrogen fuel cell and the distributed electric vehicle storage array are used for supplying power for the civil air defense equipment in a combined manner; when the electric quantity of the distributed electric automobile storage array is exhausted, the hydrogen fuel cell is used for supplying power independently, at the moment, only the civil air defense equipment occupying 50% of the electric load normally operates, the civil air defense ventilation equipment is selected to operate, the lowest lighting requirement is maintained, and other lighting or equipment stops; the operation working condition (2) is stopped when the liquid hydrogen in the liquid hydrogen storage tank is consumed to be below 20% of the remaining total liquid hydrogen storage amount and the electric energy stored in the distributed electric automobile power storage array is left for 20%;
(3) hydrogen leakage emergency power supply working condition: when hydrogen leakage occurs in a hydrogen fuel cell in a fuel cell chamber, a flammable and explosive hydrogen monitor monitors the hydrogen leakage and sends an alarm signal, the hydrogen fuel cell is immediately stopped, a distributed electric vehicle power storage array is started to supply power, an emergency explosion-proof exhaust fan II is started and civil air defense emergency lighting is started, and the emergency explosion-proof exhaust fan II exhausts the hydrogen to the outside and guides people to evacuate under the emergency lighting instruction; stopping the operation working condition (3) after the parameters of the flammable and explosive hydrogen monitor reach the standard;
(4) the survival environment improves the emergency power supply working condition: when the temperature and humidity in the civil air defense project do not reach the standard, the oxygen concentration is lower than the preset value, or the toxic and harmful gas monitor exceeds the standard or CO is detected2Over-standard temperature and humidity monitor, oxygen monitor, toxic and harmful gas monitor and CO2The detector correspondingly sends out an alarm signal; after receiving the alarm signal, the civil air defense power supply monitoring device switches and controls the two paths of power supplies, and selects a feasible power supply working condition to supply power to the civil air defense ventilation equipment when the alarm occurs according to the priority sequence of the working condition (1) -the working condition (2).
By the technical scheme, the power battery of the electric automobile parked in the underground garage at ordinary times is taken as a unit to form the distributed electric automobile power storage array, and on the basis, the power battery is combined with the hydrogen fuel battery to form a main and standby multisource power supply system for the civil air defense engineering in wartime, so that the power supply reliability of the civil air defense engineering in wartime can be greatly improved.
Drawings
FIG. 1 is an electrical schematic of one embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can practice the invention.
As shown in fig. 1, an embodiment of the emergency power supply system based on coupling of an electric vehicle power storage array and a hydrogen fuel cell of the invention includes a two-way power supply of a distributed electric vehicle power storage array and a hydrogen fuel cell; the distributed electric automobile power storage array is connected to the input end of a double-power-supply switching device through a first inverter, the hydrogen fuel cell is connected to the input end of the double-power-supply switching device through a second inverter, and the output end of the double-power-supply switching device is connected to a multi-path civil air defense equipment distribution box. The dual power supply switching device can be manually or automatically switched between two power supplies.
Where cities are built, civil air defense construction follows. Where the important protection area of the city is, civil air defense engineering is preferentially built. In the 5 years from 2012 to 2017, the civil air defense war line rapidly increases the number of protection projects according to the idea, 3.5 hundred million square meters of project area are newly added in China, the civil air defense project area of 87 key cities such as Beijing, Shanghai, Changsha, Xiamen and the like exceeds 1 square meter, and the conservation quantity of civil air defense projects in China is very large.
Civil air defense engineering is generally an underground garage at ordinary times, and a plurality of parking spaces are arranged inside the civil air defense engineering. Along with the continuous increase of electric automobile holding capacity, the electric automobile in the underground garage is more and more, under the ideal condition, has all stopped electric automobile on every parking stall, and every parking stall all is equipped with electric automobile and charges and receive the electric pile concurrently. Under the condition of wartime, in order to avoid the danger of air attack, residents in a community are concentrated in an underground garage which also serves as a civil defense project to be shielded, and electric automobiles are generally left unused in the underground garage. In wartime, the inlet wire of the civil air defense power supply of the low-voltage distribution room as a municipal power supply system is easy to damage, and a reliable standby power supply must be provided for civil air defense engineering electric equipment so as to ensure the normal operation of the civil air defense engineering electric equipment and ensure the safety guarantee of personnel and materials sheltered in the civil air defense engineering. The power batteries dispersed in the plurality of electric vehicles are electrically connected to form a distributed electric vehicle power storage array, so that the power storage array has considerable power supply capacity, and a power supply can be switched to the distributed electric vehicle power storage array through a dual-power switching device when the civil air defense power supply incoming line of a low-voltage distribution room is powered off. Because the distributed electric automobile power storage array outputs direct current, the direct current needs to be inverted into alternating current through the first inverter to supply power to the civil air defense engineering electric equipment. The residual electric quantity of the distributed electric automobile power storage array can be monitored in real time, and when the residual electric quantity is lower than a set value, the power supply can be switched to the hydrogen fuel cell through the double-power-supply switching device. The hydrogen fuel cell outputs direct current, and the direct current is inverted into alternating current through the second inverter to supply power to the civil air defense engineering electric equipment. Two paths of power supplies are mutually standby, so that the reliability and the durability of emergency power supply are greatly improved.
In one embodiment of the invention, the distributed electric vehicle power storage array comprises a plurality of groups of power batteries arranged in a plurality of electric vehicles, each group of power batteries is connected to a charging and receiving bridge frame through a charging and receiving socket and a charging and receiving pile, and the charging and receiving bridge frames are respectively connected to an electric vehicle charging power distribution cabinet and the first inverter.
Specifically, the power battery of each electric vehicle corresponds to the charging and receiving pile on one parking space, and each group of power batteries is connected to the charging and receiving pile through the charging and receiving socket and is connected to the charging and receiving bridge through the charging and receiving pile. The charging and receiving bridge frame is equivalent to a power bus, on one hand, the charging and receiving bridge frame is used as a power supply bus when a power battery is charged, and a municipal power supply from the electric vehicle charging power distribution cabinet is transmitted to the charging and receiving pile to charge the battery; on the other hand, the power supply bus serves as a power supply bus when the municipal power supply is powered off, and the electric energy stored in the power battery is supplied to the civil air defense engineering electric equipment through the first inverter. Therefore, on the basis of the original power battery charging powered equipment, the power supply of the civil air defense engineering power equipment by the distributed electric automobile power storage array can be realized only by adding the inverter, the line transformation is simple, the original line cannot be damaged, the peacetime and war combination is realized, and the cost is low.
In one embodiment of the invention, the electric vehicle charging power distribution cabinet is connected to the charging power bridge frame through a remote control isolating switch. Like this, when the unable normal during operation of municipal power supply during the wartime, accessible remote control isolator disconnection electric automobile charges at ordinary times the switch board that charges of usefulness and charges the electrical connection who receives the electric bridge frame to the disconnection and the electric connection of the power battery in the distributed electric automobile power storage array, the circumstances that power battery both charged and supplied power appears when preventing that municipal power supply from resuming the power supply, improve the security and the stability of supplying power.
In one embodiment of the invention, a civil air defense power supply monitoring device is connected between the input end and the output end of the double power supply switching device.
As shown in fig. 1, the civil air defense power supply monitoring device has two incoming lines and one outgoing line, and the two incoming lines and the one outgoing line are respectively and correspondingly connected to two power supplies at the input end of the double power supply switching device and a civil air defense power supply line at the output end of the double power supply switching device. The civil air defense power supply monitoring device can automatically switch the double power supply switching device and can alarm and record fault information of the double power supply switching device, such as open circuit, short circuit, overvoltage, undervoltage, phase failure, overcurrent (overload) and the like.
It should be noted that, the dual power switching device and the civil air defense power monitoring device can both adopt the prior art, and the working principle thereof is not described in detail here.
In an embodiment of the invention, the civil air defense power supply monitoring device is respectively connected to each of the two power supplies through a remote control isolating switch, and each civil air defense equipment distribution box is respectively connected to the output end of the double power supply switching device through a remote control isolating switch. Therefore, the remote control isolating switch can be controlled to be turned on or off remotely under the control of the civil air defense power supply monitoring device, so that each power supply can be switched remotely, and convenience is provided for comprehensive remote scheduling of limited power. The remote control of the remote-control isolating switch can adopt the prior art, and the working principle of the remote-control isolating switch is not described in detail here.
In one embodiment of the invention, the hydrogen fuel cell is connected to a liquid hydrogen storage tank, a liquid hydrogen residual monitor is arranged in the liquid hydrogen storage tank, and the liquid hydrogen residual monitor is electrically connected to the civil air defense power monitoring device. The liquid hydrogen storage tank belongs to a hazard source and must be far away from the inner space of the civil air defense engineering with dense personnel, and the specific external placement place should meet the requirement of safe distance. The liquid hydrogen residual monitor transmits real-time detection data to the civil air defense power supply monitoring device, and when the liquid hydrogen residual is lower than a set value, the power supply of the hydrogen fuel cell is cut off through the dual-power switching device and is switched to other power supplies, so that the safe operation of the hydrogen fuel cell is ensured. The unit power cost of the hydrogen fuel cell is high, and the generating capacity of the hydrogen fuel cell is configured according to 50% of the peak power consumption of civil air defense engineering electric equipment.
In one embodiment of the invention, a radiation temperature sensor is respectively arranged right above each group of power batteries and used for monitoring the temperature of the power batteries during charging, and when the temperature exceeds the limit, the power batteries are automatically disconnected from the charging and receiving pile and an alarm is given out. The surface temperature of the power battery rises abnormally to cause fire during charging, and the charging loop of the power battery with the abnormally raised temperature can be cut off in time through temperature monitoring, so that the normal charging of other groups of power is not influenced, the potential safety hazard is avoided, the normal supplement of electric energy of the power storage array of the distributed electric automobile can be ensured, and the safe and stable operation of the power supply is facilitated.
In one embodiment of the invention, a hydrogen monitor and an emergency explosion-proof exhaust fan II are arranged in a placing chamber of the hydrogen fuel cell, when the concentration of hydrogen volatilized in the hydrogen fuel cell chamber exceeds a safety range, the hydrogen monitor sends out an alarm signal and the emergency explosion-proof exhaust fan II is started in a locking mode, so that the indoor gas is exhausted into the ventilation shaft for the civil air defense and electric power and further exhausted out of the chamber.
In one embodiment of the invention, an oxygen monitor and CO are provided in the housing room of the manpower generator2Monitor for oxygen and CO in the chamber of the manpower generator2Concentration, when oxygen in the manpower generator room is too low or CO2Oxygen monitor or CO at ultra-high concentrations2The monitor sends out alarm signal, reminds personnel to evacuate and take a rest and ventilate. At the moment, the power supply of the manpower generator is stopped through the double-power-supply switching device, the power supply is switched to other power supplies, and the normal power supply of the civil air defense engineering electric equipment which influences the existence, such as ventilation equipment, is ensured.
In one embodiment of the invention, a temperature and humidity monitor, an oxygen monitor, a toxic and harmful gas monitor and a temperature and humidity sensor are arranged in the civil air defense engineeringCO2Monitor for the case of substandard humiture, too low oxygen concentration, excessive toxic and harmful gas and CO2And when the environment is deteriorated and is not suitable for human survival, the alarm signal is sent out. After receiving the alarm signal, the civil air defense power monitoring device carries out forced ventilation, heating or cooling on civil air defense projects until the temperature and humidity monitor, the oxygen monitor, the toxic and harmful gas monitor and the CO monitor2The corresponding parameter monitored by the monitor returns to a normal level.
The specific operation condition of the embodiment of the emergency power supply system based on the coupling of the electric vehicle storage array and the hydrogen fuel cell can be flexibly adjusted according to the actual condition so as to ensure the principle of continuous, effective and safe power supply of key electric equipment of civil air defense engineering, such as a primary electric load. Some main operating conditions are listed below to further describe the technical solution of the above embodiment of the present invention in more detail.
Preparing working conditions:
when a war alarm is issued, the civil air defense works to prepare for the war. At the moment, the electric automobile rapidly returns to the parking space, and the charging and receiving pile is connected with an electric automobile power battery arranged in the electric automobile through a charging and receiving socket. And filling the liquid hydrogen storage tank with liquid hydrogen by the operation and maintenance personnel of the civil air defense facility.
The operation working condition 1: distributed electric automobile power storage array circulation power supply
Part municipal power supply is destroyed or is influenced unable power supply under this operating mode, leads to municipal power supply to be in intermittent type power supply state. And in the interval when the municipal power supply stops supplying power, the distributed electric automobile power storage array and the double-power switching device are used for supplying power to the civil air defense power supply line and the civil air defense equipment. When the municipal power is restored, the power batteries of the electric vehicles in the distributed electric vehicle power storage array are fully charged for the next use. When the power battery of the electric vehicle is charged, the off-peak electricity time period is preferably adopted, so that the electricity cost is saved, and the electricity generation efficiency of the electricity generation facility is improved from the national power grid angle.
The operation working condition 2: distributed electric automobile power storage array and hydrogen fuel cell combined efficient power supply working condition
Municipal power is destroyed completely under this operating mode, leads to municipal power completely unable power supply. At the moment, the distributed electric automobile storage array with the residual electric quantity not less than 50% and the double-power switching device are used for supplying power to the civil air defense power supply line and the civil air defense equipment, and the hydrogen fuel cell does not work. And when the electric quantity of the distributed electric automobile power storage array reaches 50%, stopping supplying power to the distributed electric automobile power storage array, and starting the hydrogen fuel cell to supply power to the civil air defense equipment. Because the unit power cost of the hydrogen fuel cell is high, the generated energy is 50% less than the peak power consumption of the civil air defense equipment, and therefore, the distributed electric vehicle power storage array and the hydrogen fuel cell are started to jointly supply power to the civil air defense equipment. In the process, as the civil air defense devices (light, water pump, fan and the like) are operated intermittently, the hydrogen fuel cell is used for charging the power battery of the electric vehicle in the distributed electric vehicle power storage array when the lighting, the water pump and other devices are basically closed and the power consumption of the civil air defense devices is lower than the power supply of the hydrogen fuel cell. When the load of the civil air defense equipment is larger than or equal to the power supply power of the hydrogen fuel cell or the power battery of the electric vehicle is fully charged, the charging is finished, and the hydrogen fuel cell and the distributed electric vehicle storage array are used for supplying power for the civil air defense equipment in a combined manner. When the electric quantity of the distributed electric automobile power storage array is completely consumed, the hydrogen fuel cell supplies power independently, only the civil air defense equipment occupying 50% of electric load normally operates, key equipment influencing the survival of personnel, such as a civil air defense ventilator, needs to be selected to operate, the lowest lighting requirement is maintained, and other lighting or equipment is stopped. At this time, in order to deal with the sudden emergency exhaust demand situation, 20% of liquid hydrogen and 20% of electric quantity of the distributed electric automobile power storage array need to be reserved.
Operating condition 3: hydrogen leakage emergency power supply condition
When hydrogen leakage occurs to a hydrogen fuel cell in a fuel cell chamber, a flammable and explosive hydrogen monitor monitors the hydrogen leakage and sends an alarm signal, the hydrogen fuel cell is immediately stopped, an operating condition 1 is operated, an emergency explosion-proof exhaust fan II is started, the prior art civil air defense emergency lighting is started (other electric equipment only keeps civil air defense equipment influencing survival and minimum daily lighting to continue operating or starting), and the emergency explosion-proof exhaust fan II exhausts the hydrogen to the outside and guides people to evacuate under the emergency lighting indication. And stopping operating the working condition 3 after the parameters of the flammable and explosive hydrogen monitor reach the standard.
The operation condition 4 is as follows: survival environment improved emergency power supply working condition
When the temperature and humidity in civil air defense engineering are not suitable, the oxygen concentration is too low, or a toxic and harmful gas monitor exceeds the standard or CO2When the standard exceeds the standard, a temperature and humidity monitor, an oxygen monitor, a toxic and harmful gas monitor and CO2The detector may issue an alarm signal accordingly. After receiving the alarm signal, the civil air defense power supply monitoring device can switch and control the double power supplies, and selects a feasible power supply working condition to supply power to the civil air defense ventilation equipment when the alarm occurs according to the priority sequence of the working condition 1 to the working condition 2.
The invention has the following beneficial effects:
1. the power supply is provided with two power supplies, the power supply reliability is obviously improved, when one power supply fails, the power supply can still be normally supplied, and serious loss caused by power failure of civil air defense equipment and facilities is avoided.
2. The civil air defense engineering civil air defense system is provided with two power supplies for power supply, 2 internal power supplies are arranged in the civil air defense engineering, the civil air defense engineering civil air defense engineering civil air defense construction civil air defense.
3. The hydrogen fuel cells can work together with the distributed electric vehicle power storage arrays respectively, redundant electric quantity is stored in the distributed electric vehicle power storage arrays when the hydrogen fuel cells work, the hydrogen fuel cells are kept to run in a high-efficiency working output power range, the energy utilization efficiency is high, and the energy-saving and environment-friendly effects are achieved.
4. The electric vehicle power batteries of the civil electric vehicle are utilized to form the distributed electric vehicle power storage array, investment does not need to be increased, the electric vehicle power storage array is fast to put into use, the number of the batteries is large, the power supply amount is large, the batteries are distributed, and the overall power supply cannot be influenced when the individual power batteries or the charging and receiving electric piles break down. And the power battery of the electric vehicle, the electric vehicle and the charging and receiving pile are combined in peacetime and war time, so that the capital and resources are saved, EPS and UPS self-contained power supply equipment does not need to be installed in wartime, and the situation that the installation cannot be caused by insufficient supply or long supply period is not easy to happen.
5. A distributed electric vehicle power storage array and a hydrogen fuel cell mode are adopted to form a multi-energy complementary system, so that the self-sustaining time of electric equipment for civil air defense engineering is remarkably prolonged, and the survival capability and time of personnel in civil air defense engineering are further prolonged.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The emergency power supply system based on coupling of the electric automobile power storage array and the hydrogen fuel cell is characterized by comprising two paths of power supplies of a distributed electric automobile power storage array and the hydrogen fuel cell; the distributed electric automobile power storage array is connected to the input end of a double-power-supply switching device through a first inverter, the hydrogen fuel cell is connected to the input end of the double-power-supply switching device through a second inverter, and the output end of the double-power-supply switching device is connected to a multi-path civil air defense equipment distribution box.
2. The emergency power supply system based on electric vehicle power storage array and hydrogen fuel cell coupling of claim 1, wherein the distributed electric vehicle power storage array comprises a plurality of groups of power batteries disposed in a plurality of electric vehicles, each group of power batteries is connected to a charging and receiving bridge through a charging and receiving socket and a charging and receiving pile, and the charging and receiving bridges are respectively connected to an electric vehicle charging power distribution cabinet and the first inverter.
3. The emergency power supply system based on electric vehicle power storage array and hydrogen fuel cell coupling of claim 2, wherein the electric vehicle charging power distribution cabinet is connected to the charging power bridge through a remote control isolation switch; and a civil air defense power supply monitoring device is connected between the input end and the output end of the double power supply switching device.
4. The emergency power supply system based on electric vehicle power storage array and hydrogen fuel cell coupling of claim 3, wherein the civil air defense power supply monitoring device is connected to each of the two power supplies through a remote control isolating switch; and each path of civil air defense equipment distribution box is connected to the output end of the double-power-supply switching device through a remote control isolating switch.
5. The emergency power supply system based on electric vehicle power storage array and hydrogen fuel cell coupling of claim 3, wherein the hydrogen fuel cell is connected to a liquid hydrogen tank, a liquid hydrogen residual monitor is arranged in the liquid hydrogen tank, and the liquid hydrogen residual monitor is electrically connected to the civil air defense power supply monitoring device.
6. The emergency power supply system based on the coupling of the electric vehicle power storage array and the hydrogen fuel cell as claimed in claim 1, wherein a hydrogen monitor and an emergency explosion-proof exhaust fan II are arranged in the placing chamber of the hydrogen fuel cell, when the concentration of the hydrogen volatilized from the hydrogen fuel cell chamber exceeds a preset safety range, the hydrogen monitor sends out an alarm signal, the emergency explosion-proof exhaust fan II is started in a locked mode, and indoor gas is exhausted into the ventilation shaft for the civil air defense and electric power and then is exhausted out of the room.
7. The emergency power supply system based on the coupling of the electric vehicle power storage array and the hydrogen fuel cell as claimed in claim 3, wherein a temperature and humidity monitor, an oxygen monitor, a toxic and harmful gas monitor and a CO are arranged in the civil air defense engineering2A monitor for monitoring temperature and humidity, oxygen concentration, toxic and harmful gas and CO when the temperature and humidity do not meet preset values2When the value is higher than the preset value, an alarm signal is sent out; after receiving the alarm signal, the civil air defense power monitoring device carries out forced ventilation, heating or cooling on civil air defense projects until the temperature and humidity monitor, the oxygen monitor, the toxic and harmful gas monitor and the CO monitor2The corresponding parameter monitored by the monitor returns to the preset normal level.
8. The emergency power supply system based on the coupling of the electric vehicle power storage array and the hydrogen fuel cell as claimed in claim 2, wherein a radiation temperature sensor is respectively arranged right above each group of the power cells and used for monitoring the temperature of the power cells during charging, and when the temperature exceeds a limit, the power cells are automatically disconnected from the charging and receiving pile and an alarm is given.
9. The emergency power supply method based on coupling of the electric vehicle power storage array and the hydrogen fuel cell is characterized in that two paths of power supplies of the distributed electric vehicle power storage array and the hydrogen fuel cell are adopted to supply power for civil air defense engineering electric equipment; the two power supplies are mutually standby, and when one power supply fails, the other power supply is automatically switched to.
10. The emergency power supply method based on the coupling of the electric vehicle power storage array and the hydrogen fuel cell as claimed in claim 9, which is suitable for operating according to the following working conditions:
(1) the distributed electric automobile power storage array circularly supplies power: a distributed electric automobile power storage array and a double-power-supply switching device are used for supplying power to a civil air defense power supply line and civil air defense equipment;
(2) the distributed electric automobile storage array and the hydrogen fuel cell are combined to supply power efficiently: firstly, a distributed electric vehicle power storage array with the residual electric quantity not less than 50% and five power supply switching devices are used for supplying power to a civil air defense power supply line and civil air defense equipment; when the electric quantity of the distributed electric automobile power storage array reaches 50%, stopping supplying power to the distributed electric automobile power storage array, and starting a hydrogen fuel cell to supply power to the civil air defense equipment; when the electric power used by the civil air defense equipment is lower than the power supply power of the hydrogen fuel cell, the hydrogen fuel cell is used for charging the power cell of the electric vehicle in the distributed electric vehicle power storage array; when the load of the civil air defense equipment is greater than or equal to the power supply power of the hydrogen fuel cell or the power battery of the electric vehicle is fully charged, the charging is finished, and the hydrogen fuel cell and the distributed electric vehicle storage array are used for supplying power for the civil air defense equipment in a combined manner; when the electric quantity of the distributed electric automobile storage array is exhausted, the hydrogen fuel cell is used for supplying power independently, at the moment, only the civil air defense equipment occupying 50% of the electric load normally operates, the civil air defense ventilation equipment is selected to operate, the lowest lighting requirement is maintained, and other lighting or equipment stops; the operation working condition (2) is stopped when the liquid hydrogen in the liquid hydrogen storage tank is consumed to be below 20% of the remaining total liquid hydrogen storage amount and the electric energy stored in the distributed electric automobile power storage array is left for 20%;
(3) hydrogen leakage emergency power supply working condition: when hydrogen leakage occurs in a hydrogen fuel cell in a fuel cell chamber, a flammable and explosive hydrogen monitor monitors the hydrogen leakage and sends an alarm signal, the hydrogen fuel cell is immediately stopped, a distributed electric vehicle power storage array is started to supply power, an emergency explosion-proof exhaust fan II is started and civil air defense emergency lighting is started, and the emergency explosion-proof exhaust fan II exhausts the hydrogen to the outside and guides people to evacuate under the emergency lighting instruction; stopping the operation working condition (3) after the parameters of the flammable and explosive hydrogen monitor reach the standard;
(4) the survival environment improves the emergency power supply working condition: when the temperature and humidity in the civil air defense project do not reach the standard, the oxygen concentration is lower than the preset value, or the toxic and harmful gas monitor exceeds the standard or CO is detected2Over-standard temperature and humidity monitor, oxygen monitor, toxic and harmful gas monitor and CO2The detector correspondingly sends out an alarm signal; after receiving the alarm signal, the civil air defense power supply monitoring device switches and controls the two paths of power supplies, and selects a feasible power supply working condition to supply power to the civil air defense ventilation equipment when the alarm occurs according to the priority sequence of the working condition (1) -the working condition (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592088.6A CN111697685A (en) | 2020-06-24 | 2020-06-24 | Power supply system and method based on electric vehicle power storage array and hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592088.6A CN111697685A (en) | 2020-06-24 | 2020-06-24 | Power supply system and method based on electric vehicle power storage array and hydrogen fuel cell |
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| CN111697685A true CN111697685A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010592088.6A Withdrawn CN111697685A (en) | 2020-06-24 | 2020-06-24 | Power supply system and method based on electric vehicle power storage array and hydrogen fuel cell |
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| Country | Link |
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| CN (1) | CN111697685A (en) |
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2020
- 2020-06-24 CN CN202010592088.6A patent/CN111697685A/en not_active Withdrawn
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