CN106849335A - Nuclear power plant's DC power system and method for supplying power to - Google Patents
Nuclear power plant's DC power system and method for supplying power to Download PDFInfo
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- CN106849335A CN106849335A CN201710160076.4A CN201710160076A CN106849335A CN 106849335 A CN106849335 A CN 106849335A CN 201710160076 A CN201710160076 A CN 201710160076A CN 106849335 A CN106849335 A CN 106849335A
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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
- H02J9/061—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 for DC powered loads
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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
- H02J9/08—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
-
- 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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- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of nuclear power plant's DC power system, including：Charge tunnel, is connected with power network and DC distribution bus respectively, for by power network for each DC load is powered；At least one compressed-air energy storage power channel, is connected with the DC distribution bus, and for starting in the charge tunnel abnormal electrical power supply, it is that described each DC load is powered that compressed-air energy storage is converted into electric energy；And, accumulator channel is connected with the DC distribution bus, for being during being powered by the compressed-air energy storage power channel, without interruption for described each DC load is powered by the charge tunnel power switching.The invention also discloses a kind of method of supplying power to.The present invention can in charge tunnel abnormal electrical power supply, still ensure DC load long lasting for power supply, and safe, reliability is high.
Description
Technical field
The present invention relates to nuclear power station technical field, more particularly to a kind of nuclear power plant's DC power system and method for supplying power to.
Background technology
Nuclear power plant's DC power system is control, signal, protection and automatics (being referred to as control load), and breaking
Device electromagnetism combined floodgate, dc motor, inverter, emergency lighting (being referred to as living load) etc. are powered, and are related to Emergency diesel control
The important loads such as disk processed, nuclear reactor protection group, rod power circuit breaker screen, shutdown breaker, Nuclear Instrument, to the safety of nuclear power plant
Vital effect is played in stable operation.Battery is the visual plant of nuclear power plant's DC power system.In normal operation feelings
Under condition, battery is in floating charge state, by charger for downstream load is powered, and for battery provides floating current, if being
Occur excessive impact load in system, charger cannot provide sufficiently large impact load, at this moment, battery can discharge in short-term,
Dash current is provided, so that system voltage held stationary；When AC power is lost or charger breaks down in itself, charger
Work is exited, battery starts electric discharge, to ensure wanting in seeking time as downstream load provides stabilized power source, it is ensured that important load
Continued power, it is ensured that npp safety.
Nuclear power plant's DC power system of the prior art, including 1 group storage battery, 1 or 2 chargers, for phase
Mutually each independent DC load is powered.In the case where the normal power supply of nuclear power station is interrupted, it is necessary to independent by battery
Continue to provide electric energy for DC load in ground.But, the batteries in nuclear power station DC power system can not power for a long time,
The current capacity that withstands shocks is poor, it is impossible to high-power load, and immovable, when nuclear power station needs for a long time under major accident
During high-power load dc source, batteries cannot meet demand.In addition, to batteries are designed as to supply for a long time
Electricity, then need to improve batteries electricity capacity so that batteries take up room excessive.
The content of the invention
The present invention is directed to problems of the prior art, there is provided a kind of nuclear power plant's DC power system and supplier of electricity
Method, can in charge tunnel abnormal electrical power supply, still ensure DC load long lasting for power supply, and safe, reliability
It is high.
The technical scheme that the present invention is proposed with regard to above-mentioned technical problem is as follows：
On the one hand, the present invention provides a kind of nuclear power plant's DC power system, including：
Charge tunnel, is connected with power network and DC distribution bus respectively, for by power network for each DC load is powered；
At least one compressed-air energy storage power channel, is connected with the DC distribution bus, for leading in described charging
Start during road abnormal electrical power supply, it is that described each DC load is powered that compressed-air energy storage is converted into electric energy；And,
Accumulator channel, is connected with the DC distribution bus, for being by institute by the charge tunnel power switching
State during compressed-air energy storage power channel powers, without interruption for described each DC load is powered.
Further, nuclear power plant's DC power system also include respectively with the charge tunnel, each compression
The channel attached output control module of air energy storing and electricity generating；
The output control module is used for the real-time power supply state to the charge tunnel and detects, and detecting
When stating charge tunnel abnormal electrical power supply, control the compressed-air energy storage power channel to start, supplied the charge tunnel is detected
When electricity recovers normal, the compressed-air energy storage power channel is controlled to stop power supply.
Further, each compressed-air energy storage power channel includes the compressed-air energy storage electricity generation module of series connection
And first switch；
The compressed-air energy storage electricity generation module is used in the charge tunnel abnormal electrical power supply, by the compression of advance storage
Energy in air is converted to electric energy, is powered with to described each DC load；
The first switch is used to control whether the compressed-air energy storage electricity generation module is carried out by opening or closing
Power supply.
Further, the compressed-air energy storage electricity generation module includes：
Caisson, for storing compressed air；
Turbine, for being converted to mechanical energy by the energy in the compressed air；And,
Generator, for the mechanical energy to be converted into electric energy, powers with to described each DC load.
Further, the compressed-air energy storage electricity generation module also includes：
Compressor, for compressing air to the caisson in；And,
Fuel chambers, energy conversion is carried out for the compressed air and the combust rear-guard of fuel one to be moved into the turbine.
Further, the charge tunnel includes main charge tunnel and standby charge tunnel in parallel；
The main charge tunnel includes being connected on main charger between the power network and the DC distribution bus and the
Two switches；It is that described each DC load is powered that the main charger is used for by power network, and the second switch is used for by beating
Open or close to close and control whether the main charger is powered；
The standby charge tunnel includes the Alternate Current Charging Unit being connected between the power network and the DC distribution bus
With the 3rd switch；The Alternate Current Charging Unit is used in the main charger failure, is described each DC load by power network
Power supply, the described 3rd switchs for controlling whether the Alternate Current Charging Unit is powered by opening or closing.
Further, the accumulator channel includes batteries and is connected on the batteries and the direct current is matched somebody with somebody
The 4th switch between goddess of lightning's line；
The batteries are used to be in floating charge state when the charge tunnel powers normal, are supplied in the charge tunnel
Electrical anomaly, during switching to the compressed-air energy storage power channel to power, there is provided the electric charge needed for meeting handoff procedure
With without interruption for described each DC load is powered；
Described 4th switchs for controlling whether the batteries are powered by opening or closing.
Further, the compressed-air energy storage power channel is by the Alternate Current Charging Unit and the DC distribution bus
Connection, for starting when the power network is stopped power supply, to be powered as described each DC load by the Alternate Current Charging Unit.
Further, the compressed-air energy storage power channel is logical also includes being connected on the compressed-air energy storage generating mould
The AC/DC changeover switch of the output end of block；
The AC/DC changeover switch is used to be converted to the alternating voltage that the compressed-air energy storage electricity generation module is exported directly
Stream voltage, powers with to described each DC load.
On the other hand, the present invention provides a kind of method being powered using above-mentioned nuclear power plant's DC power system, including：
By charge tunnel by grid power for each DC load is powered；
It is that described each DC load is powered by accumulator channel, and start in the charge tunnel abnormal electrical power supply
At least one compressed-air energy storage power channel, electric energy is converted to by compressed-air energy storage；
The electric energy changed by the compressed-air energy storage is used to be powered for described each DC load.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
When charge tunnel powers normal, by grid power for each DC load is powered, when charge tunnel is abnormal,
It is free of discontinuities for each DC load is powered by accumulator channel, while start at least one compressed-air energy storage power channel,
Make compressed-air energy storage power channel that compressed-air energy storage is converted into electric energy for each DC load is powered, it is ensured that charge tunnel
To DC load long lasting for power supply when abnormal；Battery is used as the mistake in compressed-air energy storage electricity generation module start-up course
Power supply is crossed, required capacity is small, solve the problems, such as that existing nuclear power plant's batteries take up room excessive；Compressed-air energy storage generating mould
Block uses compressed-air energy storage, and air will not burn, and does not have explosion danger, and any toxic and harmful, security are not produced
It is high with reliability.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of nuclear power plant's DC power system that the embodiment of the present invention one is provided；
Fig. 2 is the structural representation of the control system in nuclear power plant's DC power system that the embodiment of the present invention one is provided；
Fig. 3 is the concrete structure schematic diagram of nuclear power plant's DC power system that the embodiment of the present invention one is provided；
Fig. 4 is the compressed-air energy storage electricity generation module in nuclear power plant's DC power system that the embodiment of the present invention one is provided
Structural representation；
Fig. 5 is the schematic flow sheet of the method for supplying power to that the embodiment of the present invention two is provided.
Specific embodiment
In order to solve prior art, battery cannot during charge tunnel exception present in nuclear power plant's DC power system
Long lasting for power supply, and battery takes up room the technical problem such as excessive, the present invention is intended to provide a kind of nuclear power plant's direct current
Origin system, its core concept is：Charge tunnel, at least one compressed-air energy storage power channel and accumulator channel are provided,
During the abnormal electrical power supply of charge tunnel, start at least one compressed-air energy storage power channel, compressed-air energy storage is converted into electricity
Each DC load can be continued as to power, and, in compressed-air energy storage power channel start-up course, by accumulator channel
Without interruption for each DC load is powered.Nuclear power plant's DC power system provided by the present invention can be in charge tunnel exception
When ensure it is unremitting to DC load occupied little space long lasting for power supply, and battery, while air energy storage security
It is high with reliability.
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one
A kind of nuclear power plant's DC power system is the embodiment of the invention provides, referring to Fig. 1, the system includes：
Charge tunnel 1, is connected with power network and DC distribution bus 4 respectively, for being the confession of each DC load by power network
Electricity；
At least one compressed-air energy storage power channel 2, is connected, in the charging with the DC distribution bus 4
Start during passage abnormal electrical power supply, it is that described each DC load is powered that compressed-air energy storage is converted into electric energy；And,
Accumulator channel 3, is connected with the DC distribution bus 4, for being served as reasons by the charge tunnel power switching
During the compressed-air energy storage power channel is powered, without interruption for described each DC load is powered.
It should be noted that power network generally provides 380V AC powers, DC distribution bus respectively with each DC load
Connection, to be powered to each DC load respectively.When power network and charge tunnel normally run, grid power passes through charge tunnel
For each DC load is powered, and now accumulator channel is in floating charge state.When power network has just been stopped power supply or charge tunnel is firm
During failure, accumulator channel is free of discontinuities for each DC load provides electric power as stand-by power supply passage.Meanwhile, at least one pressure
Contracting air energy storing and electricity generating passage starts to start, and compressed-air energy storage is converted into electric energy, is generated electricity subsequently into compressed-air energy storage
Passage is the pattern that each DC load is powered, until power network and charge tunnel recover normal.Wherein, compressed-air energy storage
The start-up course of power channel quickly, is completed typically in several seconds, and the electricity that accumulator channel is provided need to only be stored up in compressed air
The startup stage of energy power channel maintains power supply.Can be ensured to DC load when charge tunnel is abnormal using embodiment
It is unremitting long lasting for power supply.
Further, as shown in Fig. 2 nuclear power plant's DC power system also include respectively with the charge tunnel 1, every
The output control module 5 of the connection of compressed-air energy storage power channel 2 described in one；
The power supply state that the output control module 5 is used in real time to the charge tunnel 1 is detected, and is being detected
During 1 abnormal electrical power supply of charge tunnel, control the compressed-air energy storage power channel 2 to start, lead to described charging is detected
When the service restoration of road 1 is normal, the compressed-air energy storage power channel 2 is controlled to stop power supply.
It should be noted that output control module is detected to the power supply state of charge tunnel in real time, filled detecting
Electric channel abnormal electrical power supply, such as power network are stopped power supply, charge tunnel failure when, control compressed-air energy storage power channel start to open
It is dynamic, make compressed-air energy storage power channel that compressed-air energy storage is converted into electric energy, generate electricity logical subsequently into compressed-air energy storage
The method of operation that road powers, until charge tunnel service restoration is normal, such as power network is powered again or charge tunnel can be transported normally
OK, output control module control compressed-air energy storage power channel is stopped power supply, so that charge tunnel is again negative to each direct current
Carry power supply.
In being preferably carried out mode at one, as shown in figure 3, each compressed-air energy storage power channel 2 includes
The compressed-air energy storage electricity generation module 21 and first switch K1 of series connection；
The compressed-air energy storage electricity generation module 21 is used in the charge tunnel abnormal electrical power supply, by the pressure of advance storage
Energy in contracting air is converted to electric energy, is powered with to described each DC load；
The first switch K1 is used to control whether the compressed-air energy storage electricity generation module enters by opening or closing
Row power supply.
Further, as shown in figure 4, the compressed-air energy storage electricity generation module 21 includes：
Caisson 211, for storing compressed air；
Turbine 212, for being converted to mechanical energy by the energy in the compressed air；And,
Generator 213, for the mechanical energy to be converted into electric energy, powers with to described each DC load.
Further, the compressed-air energy storage electricity generation module 21 also includes：
Compressor 214, for compressing air to the caisson in；And,
Fuel chambers 215, energy conversion is carried out for the compressed air and the combust rear-guard of fuel one to be moved into the turbine.
It should be noted that power energy storage is according to technique classification, mechanical energy storage (water-storage, compressed air storage can be divided into
Energy, flywheel energy storage etc.), Power Flow (ultracapacitor etc.) and electrochemical energy storage (lead-acid battery, lithium ion battery, sodium sulphur electricity
Pond etc.) etc..Compressed-air energy storage is a kind of electric energy storing system that can realize Large Copacity and long-time power storage, refer to by
The electric power that low ebb, wind-powered electricity generation, solar energy etc. are difficult storage is used for compressed air, and the pressure-air after compression is sealed in into gas storage facility
In, the energy storage mode that compressed air promotes turbine power generation is discharged when needed.Compressed-air energy storage is a kind of based on gas turbine
Energy storage technology, have the advantages that capacity is big, longevity of service, economic performance are good, charge and discharge cycles are more.
Compressed-air energy storage electricity generation module generally comprises compressor, combustion chamber, turbine, caisson (underground or ground hole
Cave or pressure vessel) and motor/generator.Wherein, worked when compressor is different with turbine, motor shares one with generator
Machine.In energy storage, motor drives compressor compressed air and is stored in caisson by externally fed.Compressed starting
When air energy storing and electricity generating module is powered, pressure-air discharges from caisson, enters into gas-turbine combustion chamber with combustion
After expecting a combust, turbine is driven to drive generator output electric energy, the energy of turbine output is almost entirely for generating electricity.Actually should
In, the compressor in compressed-air energy storage electricity generation module can be cancelled, caisson can use compressed air bottle, and need not
Air is pressed into by compressor；The fuel chambers in compressed-air energy storage electricity generation module can also be cancelled, make compressed air with non-benefit
Combustion mode drives turbine to drive generator output electric energy.In addition, as shown in figure 4, being additionally provided with clutch between generator and compressor
Device 216, while clutch 216 is additionally provided between generator and turbine, the power for cutting off or transmitting generator output.
Further, the charge tunnel 1 includes main charge tunnel and standby charge tunnel in parallel；
The main charge tunnel include being connected on main charger U1 between the power network and the DC distribution bus 4 and
Second switch K2；It is that described each DC load is powered that the main charger U1 is used for by power network, and the second switch K2 is used
In controlling whether the main charger U1 is powered by opening or closing；
The standby charge tunnel includes the Alternate Current Charging Unit being connected between the power network and the DC distribution bus
The switches of U2 and the 3rd K3；The Alternate Current Charging Unit U2 is used in the main charger U1 failures, by power network for it is described each
DC load is powered, and the 3rd switch K3 is used to control whether the Alternate Current Charging Unit U2 is supplied by opening or closing
Electricity.
It should be noted that charge tunnel is typically provided with two charge tunnels of parallel connection, i.e., main charge tunnel and standby
Charge tunnel.Under normal circumstances, by main charge tunnel by grid power for each DC load is powered.If main charge tunnel
Break down, such as main charger break down, then by standby charge tunnel by power network for each DC load is powered.If power network
Stop power supply, or, main charger and Alternate Current Charging Unit break down, then illustrate charge tunnel abnormal electrical power supply, can make electric power storage
Pond passage starts power supply, and starts at least one compressed-air energy storage power channel.
Further, the accumulator channel 3 includes batteries 31 and is connected on batteries 31 and described
The 4th switch K4 between DC distribution bus 4；
The batteries 31 are used to be in floating charge state when the charge tunnel 1 powers normal, lead in described charging
The abnormal electrical power supply of road 1, during switching to the compressed-air energy storage power channel to power, there is provided needed for meeting handoff procedure
Electric charge is with without interruption for described each DC load is powered；
The 4th switch K4 is used to control whether the batteries are powered by opening or closing.
It should be noted that when power network normally runs, being powered by grid power, batteries are in floating charge state.
Power network is just stopped power supply, or, when main charger and Alternate Current Charging Unit break down, batteries as stand-by power supply continuously
Break as each DC load provides electric power, untill compressed-air energy storage electricity generation module starts power supply.Wherein, batteries
Power supply is general only to be needed several seconds so that battery group capacity is more much smaller than battery group capacity of the prior art, in the present embodiment
Although batteries power supply capacity it is limited, enough compressed-air energy storage electricity generation modules start switch step and remain necessary negative
Needed for lotus.
In being preferably carried out mode at one, as shown in figure 3, the compressed-air energy storage power channel 2 is by described standby
It is connected with the DC distribution bus 4 with charger U2, for starting when the power network is stopped power supply, with by described standby
Charger U2 is that described each DC load is powered.
It should be noted that compressed-air energy storage electricity generation module 21 connects the defeated of Alternate Current Charging Unit U2 by first switch K1
Enter end.If power network is stopped power supply, compressed-air energy storage electricity generation module starts, and compressed-air energy storage is converted into electric energy, and will
The electric energy of conversion is supplied to each DC load by Alternate Current Charging Unit.
In addition, as shown in figure 3, nuclear power plant's DC power system also includes battery discharging test loop 6, by the
Five switch K5 are connected with the output end of main charger U1, for carrying out discharge test.
In another is preferably carried out mode, the compressed-air energy storage power channel is logical also to be included being connected on the pressure
The AC/DC changeover switch of the output end of contracting air energy storing and electricity generating module；
The AC/DC changeover switch is used to be converted to the alternating voltage that the compressed-air energy storage electricity generation module is exported directly
Stream voltage, powers with to described each DC load.
In further embodiment, compressed-air energy storage electricity generation module is by realization and the DC distribution of being connected with battery
The connection of bus.
The embodiment of the present invention, by grid power for each DC load is powered, is being filled when charge tunnel powers normal
It is free of discontinuities for each DC load is powered by accumulator channel when electric channel is abnormal, while starting at least one compressed air
Energy storing and electricity generating passage, makes compressed-air energy storage power channel that compressed-air energy storage is converted into electric energy for each DC load is supplied
Electricity, it is ensured that to DC load long lasting for power supply when charge tunnel is abnormal；Battery is used as compressed-air energy storage generating mould
Transient power in block start-up course, required capacity is small, solves the problems, such as that existing nuclear power plant's batteries take up room excessive；Pressure
Contracting air energy storing and electricity generating module uses compressed-air energy storage, and air will not burn, and not have explosion danger, not produce any poisonous
Pernicious gas, safety and reliability is high.
Embodiment two
The embodiment of the invention provides what the nuclear power plant's DC power system in a kind of utilization above-described embodiment was powered
Method.Referring to Fig. 5, methods described includes：
S1, by charge tunnel by grid power for each DC load is powered；
S2, in the charge tunnel abnormal electrical power supply, be that described each DC load is powered by accumulator channel, and open
Dynamic at least one compressed-air energy storage power channel, electric energy is converted to by compressed-air energy storage；
S3, the electric energy changed by the compressed-air energy storage is used to be powered for described each DC load.
The embodiment of the present invention, by grid power for each DC load is powered, is being filled when charge tunnel powers normal
It is free of discontinuities for each DC load is powered by accumulator channel when electric channel is abnormal, while starting at least one compressed air
Energy storing and electricity generating passage, makes compressed-air energy storage power channel that compressed-air energy storage is converted into electric energy for each DC load is supplied
Electricity, it is ensured that to DC load long lasting for power supply when charge tunnel is abnormal；Battery is used as compressed-air energy storage generating mould
Transient power in block start-up course, required capacity is small, solves the problems, such as that existing nuclear power plant's batteries take up room excessive；Pressure
Contracting air energy storing and electricity generating module uses compressed-air energy storage, and air will not burn, and not have explosion danger, not produce any poisonous
Pernicious gas, safety and reliability is high.
In sum, the present invention proposes a kind of nuclear power plant's DC power system and method for supplying power to, and it has preferable reality
Use effect：Acting medium used is air, easily transport and storage, and compressed-air energy storage electricity generation module is above ensure that from application
It is sustainable to use, can well solve nuclear power station when AC power or charger failure in itself is lost, batteries without
Method ensures important load long lasting for powerup issue；There was only original 1/tens batteries as compression using volume
The transient power of air energy storing and electricity generating module startup stage, excessive asking is taken up an area so as to solve existing nuclear power plant's batteries
Topic；The raw material that compressed-air energy storage is used is air, will not be burnt, the danger without blast, and any poisonous and harmful gas is not produced
Body, even if there is the accident of air accumulator gas leakage, pressure inside the tank can reduce suddenly, and air will not also explode and burn, security and
Reliability is high；It is non-that nuclear power plant's DC power system can directly apply to nuclear power plant nuclear island safe level straight-flow system, nuclear island
Safe level straight-flow system and conventional island straight-flow system.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of nuclear power plant's DC power system, it is characterised in that including：
Charge tunnel, is connected with power network and DC distribution bus respectively, for by power network for each DC load is powered；
At least one compressed-air energy storage power channel, is connected with the DC distribution bus, for being supplied in the charge tunnel
Start during electrical anomaly, it is that described each DC load is powered that compressed-air energy storage is converted into electric energy；And,
Accumulator channel, is connected with the DC distribution bus, for being by the pressure by the charge tunnel power switching
During contracting air energy storing and electricity generating passage is powered, without interruption for described each DC load is powered.
2. nuclear power plant's DC power system as claimed in claim 1, it is characterised in that nuclear power plant's DC power system is also
Including the output control module being connected with the charge tunnel, each compressed-air energy storage power channel respectively；
The power supply state that the output control module is used in real time to the charge tunnel is detected, and is detecting described filling
During electric channel abnormal electrical power supply, control the compressed-air energy storage power channel to start, detect the charge tunnel power it is extensive
When multiple normal, the compressed-air energy storage power channel is controlled to stop power supply.
3. nuclear power plant's DC power system as claimed in claim 1, it is characterised in that each compressed-air energy storage generates electricity
Passage includes the compressed-air energy storage electricity generation module and first switch of series connection；
The compressed-air energy storage electricity generation module is used in the charge tunnel abnormal electrical power supply, by the compressed air of advance storage
In energy be converted to electric energy, powered with to described each DC load；
The first switch is used to control whether the compressed-air energy storage electricity generation module is powered by opening or closing.
4. nuclear power plant's DC power system as claimed in claim 3, it is characterised in that the compressed-air energy storage electricity generation module
Including：
Caisson, for storing compressed air；
Turbine, for being converted to mechanical energy by the energy in the compressed air；And,
Generator, for the mechanical energy to be converted into electric energy, powers with to described each DC load.
5. nuclear power plant's DC power system as claimed in claim 4, it is characterised in that the compressed-air energy storage electricity generation module
Also include：
Compressor, for compressing air to the caisson in；And,
Fuel chambers, energy conversion is carried out for the compressed air and the combust rear-guard of fuel one to be moved into the turbine.
6. nuclear power plant's DC power system as claimed in claim 1, it is characterised in that the charge tunnel includes master in parallel
Charge tunnel and standby charge tunnel；
The main charge tunnel includes that the main charger and second being connected between the power network and the DC distribution bus is opened
Close；It is that described each DC load is powered that the main charger is used for by power network, the second switch be used for by opening or
Close to control whether the main charger is powered；
The standby charge tunnel includes being connected on Alternate Current Charging Unit between the power network and the DC distribution bus and the
Three switches；The Alternate Current Charging Unit is used in the main charger failure, is that described each DC load is powered by power network,
Described 3rd switchs for controlling whether the Alternate Current Charging Unit is powered by opening or closing.
7. nuclear power plant's DC power system as claimed in claim 1, it is characterised in that the accumulator channel includes battery
Group and the 4th switch being connected between the batteries and the DC distribution bus；
The batteries are used to be in floating charge state when the charge tunnel powers normal, are powered in the charge tunnel different
Often, during switching to the compressed-air energy storage power channel to power, there is provided the electric charge needed for meeting handoff procedure is with nothing
Discontinuously for described each DC load is powered；
Described 4th switchs for controlling whether the batteries are powered by opening or closing.
8. nuclear power plant's DC power system as claimed in claim 6, it is characterised in that the compressed-air energy storage power channel
It is connected with the DC distribution bus by the Alternate Current Charging Unit, for starting when the power network is stopped power supply, to pass through
The Alternate Current Charging Unit is that described each DC load is powered.
9. nuclear power plant's DC power system as claimed in claim 3, it is characterised in that the compressed-air energy storage power channel
The AC/DC changeover switch of the logical output end for also including being connected on the compressed-air energy storage electricity generation module；
The AC/DC changeover switch is used to for the alternating voltage that the compressed-air energy storage electricity generation module is exported to be converted to direct current
Pressure, powers with to described each DC load.
10. the method that the nuclear power plant's DC power system described in a kind of any one of utilization claim 1 to 9 is powered, it is special
Levy and be, including：
By charge tunnel by grid power for each DC load is powered；
It is that described each DC load is powered by accumulator channel, and start at least in the charge tunnel abnormal electrical power supply
One compressed-air energy storage power channel, electric energy is converted to by compressed-air energy storage；
The electric energy changed by the compressed-air energy storage is used to be powered for described each DC load.
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| CN201710160076.4A CN106849335A (en) | 2017-03-17 | 2017-03-17 | Nuclear power plant's DC power system and method for supplying power to |
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| CN201710160076.4A CN106849335A (en) | 2017-03-17 | 2017-03-17 | Nuclear power plant's DC power system and method for supplying power to |
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| CN201710160076.4A Pending CN106849335A (en) | 2017-03-17 | 2017-03-17 | Nuclear power plant's DC power system and method for supplying power to |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462277A (en) * | 2018-11-08 | 2019-03-12 | 深圳中广核工程设计有限公司 | A kind of nuclear power plant's emergency power system and method for controlling power supply |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810901A (en) * | 2012-07-30 | 2012-12-05 | 西南交通大学 | Communication power supply system based on fuel cell |
| CN203161355U (en) * | 2013-01-17 | 2013-08-28 | 陕西陕煤黄陵矿业有限公司 | Compressed air system |
| WO2015127541A1 (en) * | 2014-02-28 | 2015-09-03 | Darryl Weflen | Dc-powered system for controlling an air compressor or hydraulic fluid pump |
-
2017
- 2017-03-17 CN CN201710160076.4A patent/CN106849335A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810901A (en) * | 2012-07-30 | 2012-12-05 | 西南交通大学 | Communication power supply system based on fuel cell |
| CN203161355U (en) * | 2013-01-17 | 2013-08-28 | 陕西陕煤黄陵矿业有限公司 | Compressed air system |
| WO2015127541A1 (en) * | 2014-02-28 | 2015-09-03 | Darryl Weflen | Dc-powered system for controlling an air compressor or hydraulic fluid pump |
Non-Patent Citations (1)
| Title |
|---|
| 池云莉: ""直流电源系统在核电厂中的应用分析"", 《石化电气》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462277A (en) * | 2018-11-08 | 2019-03-12 | 深圳中广核工程设计有限公司 | A kind of nuclear power plant's emergency power system and method for controlling power supply |
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