CN103427471A - Isolated island operation method and system of emergency energy storage system of nuclear power plant - Google Patents
Isolated island operation method and system of emergency energy storage system of nuclear power plant Download PDFInfo
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Abstract
The invention discloses an isolated island operation method and system of an emergency energy storage system of a nuclear power plant. According to the method, after an isolated island starting command is received, the isolated island operation mode is started, and then a storage battery energy storage system is controlled to supply power to nuclear power equipment with power lost. The method for controlling the storage battery energy storage system to supply power to the nuclear power equipment with power lost comprises the steps of controlling the storage battery energy storage system to drive a hydraulic test pump turbonator system and a control system of the storage battery energy storage system to operate normally, controlling the storage battery energy storage system to drive a water supplying assisting system to operate normally, and disconnecting a generator circuit breaker of the energy storage system to start a non-isolated-island operation mode after an external power grid returns to normal and the fact that the grid voltage of a grid-connected circuit breaker is normal and lasts for a preset period of time is detected. According to the isolated island operation method and system of the emergency energy storage system of the nuclear power plant, the nuclear power plant can still operate normally when faced with severe natural disasters, and safety of the nuclear power plant is improved.
Description
Technical field
The invention belongs to million kilowatt advanced pressurized water reactor nuclear power plant emergency service technical field, be specifically related to the emergent energy-storage system islet operation method and system of a kind of nuclear power station.
Background technology
Nuclear power station (Nuclear Power Plant) is to utilize nuclear fission (Nuclear Fission) or nuclear fusion (Nuclear Fusion) to react the power plant of the power generation electric energy discharged.
In order to protect the health of nuclear power station staff and nuclear power station surrounding resident, the design of nuclear power station, construction and operation all adopt the principle of depth defense, provide multiple protective from equipment, measure, to guarantee nuclear power station, the power output of reactor is effectively controlled; And can be various natural calamities occurring, as earthquake, tsunami, flood etc., or the artificial fire produced, blast etc., also can guarantee reactor fuel assemblies is carried out cooling fully, and then guarantee that the discharge to environment does not occur radioactive substance.The depth defense principle generally comprises five layers of defence line, the ground floor defence line: well-designed, manufacture, construction, guarantee that nuclear power station has superior hardware environment, the program of Erecting and improving and strict system, to the systematic education and training of nuclear power station staff, set up complete nuclear Safety Culture; Second layer defence line: strengthen operational management and supervision, the correct abnormal conditions of processing, fix a breakdown in time; The 3rd layer of defence line: in the severely subnormal situation, the control and protection system of reactor can move in time and effectively, to prevent equipment fault and human error and then to develop into accident; The 4th layer of defence line: under accident conditions, enable in time the nuclear plant safety protection system, comprise various engineered safeguards features, in order to the power management in the reinforcement accident, Accident prevention enlarges, to guarantee the integrality of nuclear power station three road safety curtains; The layer 5 defence line: just in case the accident that extremely can not occur occurs, and leak with radioactivity, should enable in time inside and outside all emergency systems of factory, make great efforts to alleviate the impact of accident on surrounding resident and environment.
Safety system all adopts autonomous device and redundant arrangement, makes the safety system can be antiseismic and move in other adverse circumstances.
No matter power supply, as the power source of nuclear power station operation, arranges or moves, and all should embody the theory of depth defense.For realizing the high reliability of nuclear power station power-supply system, all should have emergency power supply to the power consumption equipment of some particular importance or the equipment of specific (special) requirements, carry out multiplicity, the setting of independence ground simultaneously, cause the unavailable of emergency power supply to avoid that common mode failure occurs.
The emergency power system of nuclear power station, together with the normal power source system, forms station service electrical system jointly, for power consumption equipments all in factory provides safe and reliable power supply.Emergency power supply must guarantee to provide power supply at the emergent safety means for nuclear power station during accidental conditions, accident conditions or after accident conditions, to carry out safety function.Due to the particularity of Nuclear Power Station safety, so the designing requirement of its power-supply system should be much higher than other industry.
Nuclear power station is provided with the multiple tracks redundant power, comprise the dedicated emergency power supplys such as main power source outside factory, off-site auxiliary power source and emergent stationary diesel engine, Each performs its own functions for each power supply, mutual coordinates again simultaneously, not only various informative, and arrange layer by layer, multiple redundancy, provide reliable power supply for electric nuclear power station to greatest extent.
At present, the station service electrical system operational mode of nuclear power station is as follows:
1), under normal running (operation) conditions, the distribution system of whole station-service equipment is powered through HV Auxiliary Transformer by the 26KV bus of unit;
2), when unit operation, the 26KV bus is powered by main generator;
3), during generator outage, by the 400/500KV electrical network, through main transformer, to the 26KV bus, fall power transmission;
4) if the 26KV bus loses power supply or loses HV Auxiliary Transformer, lose main power source outside factory, the 220KV electrical network to the safety aid facility power supply that must move, makes reactor maintain hot shutdown condition through auxiliary transformer;
5) if outside factory, main power source and off-site auxiliary power source all lose power supply, by stationary diesel electric generating plants, to emergent auxiliary device, powered, make reactor enter the cold shut state;
6) when any emergency diesel dynamo group of nuclear power generating sets is unavailable, by additional emergency diesel-oil unit, replaced, carry out the function of emergency diesel dynamo group, for engineered safeguards features, reactor core waste heat are discharged and the cooling power supply of Spent Fuel Pool.
Yet stationary diesel electric generating plants, have certain limitation.This be because, at stationary diesel engine driving generator operation, when the Conversion of Energy of diesel oil is electric energy, after must fully mixing by the high-pressure atomization diesel oil ejected with oil atomizer in the stationary diesel engine cylinder, by the pure air after filtering, promote descent of piston, each cylinder is acting successively in certain sequence, thereby drives crankshaft rotating.Again by the rotor that rotarily drives generator of stationary diesel engine, utilize " electromagnetic induction " principle, generator will be exported induced electromotive force, just can generation current through closed load circuit, thus realize electricity generate function.In above-mentioned power generation process, must could realize by air and fully mixing of high-pressure atomization diesel oil.When under the situations such as flood, tsunami, mud-rock flow, the electrical system of stationary diesel engine will likely lose efficacy because of water logging, oil supply pipe, compressed air piping will likely rupture because of external impact force, the diesel engine body is likely because impulsive force and structure deforms, these all can cause stationary diesel electric generating plants to start, and then emergency power supply can't be provided.
Therefore, in the situation that other power supplys lose, stationary diesel electric generating plants as the final emergency power supply of nuclear power station, because having determined it, himself characteristic can not resist the water logging disaster---as flood, tsunami, typhoon tide etc., when the extreme natural calamity of super design reference occurring, stationary diesel electric generating plants is easy to lose power supply, can't discharge and the cooling power of Spent Fuel Pool for nuclear power station provides the reactor core waste heat, and this will cause nuclear power station to produce catastrophic consequence.
Summary of the invention
The object of the present invention is to provide a kind of nuclear power station energy-storage system islet operation method and system of meeting an urgent need, when the power consumption equipment dead electricity of nuclear power station, at first described storage battery energy-storage system drives the hydraulic testpump steam turbine generator system normally to move, controlling the storage battery energy-storage system drives auxiliary feedwater system normally to move again, can proceed to smoothly safe condition while making nuclear power station face serious natural calamity, improve the fail safe of nuclear power station.
Technical scheme of the present invention is: a kind of nuclear power station energy-storage system islet operation method of meeting an urgent need, comprise islet operation pattern and non-islet operation pattern, and comprising:
After receiving the isolated island starting command, enter the islet operation pattern, control the storage battery energy-storage system nuclear power generating equipment of dead electricity is powered, the step that wherein said control storage battery energy-storage system is powered to the nuclear power generating equipment of dead electricity comprises:
Controlling the storage battery energy-storage system drives the control system of hydraulic testpump steam turbine generator system and storage battery energy-storage system self normally to move; Controlling the storage battery energy-storage system drives auxiliary feedwater system normally to move;
After external electrical network is recovered normally, and grid-connected circuit breaker electric voltage on line side detected after the normal and lasting scheduled time, disconnect the energy-storage system outlet breaker, enter non-islet operation pattern.
Particularly, the operation method of the emergent energy-storage system of described nuclear power station also comprises:
After entering non-islet operation pattern, the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, controls external electrical network the storage battery energy-storage system charged.
Particularly, the operation method of the emergent energy-storage system of described nuclear power station also comprises:
The size of judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the battery energy storage system is charged.
Particularly, the operation method of the emergent energy-storage system of described nuclear power station also comprises:
The storage battery energy-storage system is connected to plant area's looped network, carries out single-row electric discharge.
Particularly, the operation method of the emergent energy-storage system of described nuclear power station also comprises:
Detect in real time magnitude of voltage and the frequency values of external electrical network, judge that whether grid-connected point voltage value and frequency values reach default protection threshold value, judge in magnitude of voltage and frequency values, whether at least one reaches described default protection threshold value;
If in magnitude of voltage and frequency values, at least one reaches described default protection threshold value, judge whether to receive the isolated island starting command, if do not have, the anti-unplanned island protect signal of output, prevent the unplanned island mode that enters of storage battery energy-storage system.
The present invention also discloses the emergent energy-storage system islet operation system of a kind of nuclear power station, comprise on-line control system and storage battery energy-storage system, after described storage battery energy-storage system receives the isolated island starting command of on-line control system, enter the islet operation pattern, the storage battery energy-storage system drives the normal operation of the control system of hydraulic testpump steam turbine generator system and storage battery energy-storage system self and drives auxiliary feedwater system normally to move; After external electrical network is recovered normally, and grid-connected circuit breaker electric voltage on line side detected after the normal and lasting scheduled time, the energy-storage system outlet breaker disconnects, and enters non-islet operation pattern.
Further, after described storage battery energy-storage system enters non-islet operation pattern, the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, is connected to external electrical network and is charged.
Further, the size of described storage battery energy-storage system judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the battery energy storage system is charged.
Particularly, described storage battery energy-storage system comprises the energy-storage system module of a plurality of parallel connections, the energy-storage system module is connected on emergency bus by bus rod, described energy-storage system module comprises at least one primary energy-storage system module and at least one back-up system module, described primary energy-storage system module and back-up system module include converter and array, array is connected on bus rod by converter, described array comprises DC bus and battery modules, described battery modules is parallel on described DC bus, described DC bus is connected on described converter, described battery modules by a plurality of cell strings or/and be formed in parallel to increase the voltage/current of battery modules.
Particularly, between described hydraulic testpump steam turbine generator system and emergency bus, be connected with the first voltage transformation unit, described the first voltage transformation unit arrives hydraulic testpump steam turbine generator system normal working voltage by emergency bus voltage transformation; Be connected with the second voltage transformation unit between described auxiliary feedwater system and emergency bus, described the second voltage transformation unit arrives the auxiliary feedwater system normal working voltage by the emergency bus boost in voltage; Be connected with the 3rd voltage transformation unit between the control system of described storage battery energy-storage system self and emergency bus, described the 3rd voltage transformation unit is the operating voltage to the control system of storage battery energy-storage system self by emergency bus voltage transformation.
Further, described online monitoring system detects magnitude of voltage and the frequency values of external electrical network in real time, judge that whether grid-connected point voltage value and frequency values reach default protection threshold value, judge in magnitude of voltage and frequency values, whether at least one reaches described default protection threshold value; If in magnitude of voltage and frequency values, at least one reaches described default protection threshold value; judge whether described storage battery energy-storage system receives the isolated island starting command; if no, the anti-unplanned island protect signal of output, prevent the unplanned island mode that enters of storage battery energy-storage system.
Particularly, described converter comprises touch screen, described touch screen comprises the pattern control unit, described pattern control unit is controlled converter in exit control model, local control model and distance control mode including, but not limited to locking, wherein locking is exited control model and is referred to that converter can accept the input signal of battery management system, and be transferred to online monitoring system, but the control command of shielding online monitoring system and the control command that shields self; Described local control model refers to the control command of not accepting online monitoring system, allows operating personnel at the enterprising line operate of touch screen, progressively realizes the stable operation of operating mode; Described distance control mode refers to the control command of accepting online monitoring system, realizes the automatic startup of operating mode and stops.
Further, described touch screen also comprises:
Discharge and recharge the set of time module, for charging interval and the discharge time of setting converter.
The frequency modulation module, for changing the power output of converter, participate in the adjusting of system frequency, reduces the variation of mains frequency.
Further, described converter also comprises:
Selftest module, carry out self check to software and hardware while starting for converter;
Reseting module, while for converter, because of interference, causing the program endless loop, carry out automatically recovering normal operation;
Further, described converter also comprises:
Detection module, for the communication connection of timing detection device and online monitoring system, if communication disruption occurs, send alarm signal to alarm module;
Alarm module is reported to the police after receiving alarm signal.
The nuclear power station provided by the invention energy-storage system islet operation method and system of meeting an urgent need, when the power consumption equipment dead electricity of nuclear power station, at first described storage battery energy-storage system drives the hydraulic testpump steam turbine generator system normally to move, controlling the storage battery energy-storage system drives auxiliary feedwater system normally to move again, can proceed to smoothly safe condition while making nuclear power station face serious natural calamity, improve the fail safe of nuclear power station.
The accompanying drawing explanation
Fig. 1 is the nuclear power station electric power system general illustration that the embodiment of the present invention provides;
The emergent energy-storage system islet operation method flow diagram of a kind of nuclear power station that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the flow chart that the emergent energy-storage system of a kind of nuclear power station of providing of the embodiment of the present invention drives load;
The flow chart of the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 4 provides for the embodiment of the present invention;
The flow chart of the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 5 provides for the embodiment of the present invention;
The flow chart of the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 6 provides for the embodiment of the present invention;
The flow chart of the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 7 provides for another embodiment of the present invention;
The flow chart of the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 8 provides for another embodiment of the present invention;
Fig. 9 is the emergent energy-storage system of the nuclear power station structural representation partly that the embodiment of the present invention provides;
Figure 10 a is the structural representation of a kind of storage battery energy-storage system converter of providing of the embodiment of the present invention;
Figure 10 b is the structural representation of a kind of storage battery energy-storage system converter of providing of the embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, center power station power supply system of the present invention is except the conventional power supply of diesel power generation unit and external electrical network supply line and Intranet mains supply circuit, storage battery energy-storage system 2100 also is provided, be connected in emergency bus 2910, and by online monitoring system, described storage battery energy-storage system 2100 monitored.When the power consumption equipment dead electricity of nuclear power station, start described storage battery energy-storage system 2100 by described online monitoring system, and the power consumption equipment power supply to nuclear power station by emergency bus 2910.
Concrete, the method that starts described storage battery energy-storage system by described online monitoring system as shown in Figure 2, comprises the following steps:
S201: the online monitoring system judgement full factory of nuclear power station dead electricity sends isolated island starting command accumulators energy-storage system.
S202: after the storage battery energy-storage system receives the isolated island starting command, control the storage battery energy-storage system nuclear power generating equipment of dead electricity is powered.
Island mode is to receive the isolated island starting command to unique criterion of island mode switching.When the full factory of nuclear power station dead electricity occurs, and nuclear power station emergency diesel-oil unit can't provide electric power, and when stack small turbine group can't provide electric power, power plant sends energy-storage system and enters the isolated island starting command, and energy-storage system starts after receiving starting command automatically.Island mode is external electrical network to be detected to recover normal to the criterion of non-island mode switching, after external electrical network is recovered normally, if after monitoring the normal also certain time of grid-connected circuit breaker electric voltage on line side, disconnect the energy-storage system outlet breaker, enter non-islet operation pattern.
As shown in Figure 3, the step that described storage battery energy-storage system is powered to the nuclear power generating equipment of dead electricity comprises:
S301: drive hydraulic testpump steam turbine generator system (LLS, Hydrotest Pump Turbine Generator Set) and the control system of storage battery energy-storage system self normally to move.
After in the present embodiment, the emergent ac bus of energy-storage system is set up the 380V alternating current, from trend hydraulic testpump steam turbine generator system power transmission, guarantee power plant's main pump shaft water shutoff supply and power plant's main control room blind controller system electricity consumption, and simultaneously to the power supply of energy-storage system self control system, to ensure the normal operation of energy-storage system.
S302: drive auxiliary feedwater system normally to move.
While due to energy-storage system, entering the islet operation pattern, be that the instantaneous band that enters carries an operating mode, the 380V alternating current voltage has the instantaneous phenomenon of falling, energy-storage system through self check and feed back supply voltage normal after, manually boot to the mains switch of auxiliary feedwater system power supply.Energy-storage system, once enter intentional islanding, recovers normal power supply unless external power grid detected, otherwise by continuous discharge, until corona discharge is complete.
When energy-storage system enters intentional islanding, external power grid detected and restore electricity when continuing for some time, energy-storage system can exit the intentional islanding pattern, and carries out automatically proceeding to standby or charge mode according to system mode after self check.
As shown in Figure 4, the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 4 provides for another embodiment of the present invention specifically comprises the following steps:
S401: the storage battery energy-storage system is set and is turned the first predeterminated voltage of standby mode by charge mode.
S402: set and judge whether the storage battery energy-storage system needs to proceed to the second predeterminated voltage of charge mode.
S403: whether detection in real time receives the isolated island starting command, and according to storage battery energy-storage system actual voltage value, the storage battery energy-storage system is carried out to operation response.
As shown in Figure 5, the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 5 provides for the embodiment of the present invention specifically comprises the following steps:
S501: judge whether the storage battery energy-storage system receives the isolated island starting command, if receive, enter S502; Otherwise enter S504.
S502: enter the islet operation pattern, i.e. storage battery energy-storage system 2100 power consumption equipment power supply to nuclear power station by emergency bus 2910.
S503: judge whether external electrical network is recovered, if recover, exit lonely network operation.
S504: judge that whether the storage battery energy-storage system is in test model, if not, enter step S505; If so, judge whether test model finishes, if finish return to step S501.
S505: the magnitude of voltage and the frequency values that detect in real time external electrical network; judge in grid-connected point voltage value and frequency values, whether at least one reaches described default protection threshold value; if in magnitude of voltage and frequency values, at least one reaches described default protection threshold value; unplanned island protect signal is prevented in output; prevent the unplanned island mode that enters of storage battery energy-storage system, as shown in Figure 6.
S506: the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, controls external electrical network the storage battery energy-storage system is charged.
S507: the size of judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the battery energy storage system is charged, enter standby mode.
S508: the storage battery energy-storage system carries out self check.
As shown in Figure 7, the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 7 provides for another embodiment of the present invention specifically comprises the following steps:
S701: the storage battery energy-storage system does not receive the isolated island starting command, and the actual terminal voltage of storage battery energy-storage system is higher than the second predeterminated voltage, and the external electrical network circuit breaker is in closure state.
S702: the storage battery energy-storage system in charge mode to the standby mode switching state.
S703: the converter of storage battery energy-storage system temporarily stops charging work.
S704: the storage battery energy-storage system transfers standby mode to.
S705: the external electrical network circuit breaker disconnects.
S706: the storage battery energy-storage system enters standby mode, and storage battery energy-storage system electric energy abundance, wait for the isolated island starting command at any time.
As shown in Figure 8, the operation method of the emergent energy-storage system of a kind of nuclear power station that Fig. 8 provides for another embodiment of the present invention specifically comprises the following steps:
S801: the storage battery energy-storage system does not receive the isolated island starting command, and the actual terminal voltage of storage battery energy-storage system is less than the first predeterminated voltage, and the external electrical network circuit breaker is in off-state.
S802: the storage battery energy-storage system in non-charging mode to the charge mode switching state.
S803: external electrical network breaker closing.
S804: the storage battery energy-storage system enters charge mode.
Above-mentioned operation method, make the storage battery energy-storage system to be charged in time, while guaranteeing that the storage battery energy-storage system is powered to nuclear power station dead electricity equipment as emergency power supply, and storage battery energy-storage system electric energy abundance.
As shown in Figure 9, originally the present invention also discloses a kind of nuclear power station emergency power supply system, comprise on-line control system and storage battery energy-storage system, after described storage battery energy-storage system receives the isolated island starting command of on-line control system, enter the islet operation pattern, the storage battery energy-storage system drives the normal operation of the control system of hydraulic testpump steam turbine generator system and storage battery energy-storage system self and drives auxiliary feedwater system normally to move; After external electrical network is recovered normally, and grid-connected circuit breaker electric voltage on line side detected after the normal and lasting scheduled time, the energy-storage system outlet breaker disconnects, and enters non-islet operation pattern.
After the storage battery energy-storage system enters non-islet operation pattern, the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, is connected to external electrical network and is charged.The size of described storage battery energy-storage system judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the battery energy storage system is charged.
Particularly, the storage battery energy-storage system comprises the energy-storage system module of a plurality of parallel connections, the energy-storage system module is connected on emergency bus by bus rod, described energy-storage system module comprises at least one primary energy-storage system module and at least one back-up system module, described primary energy-storage system module and back-up system module include converter and array, array is connected on bus rod by converter, described array comprises DC bus and battery modules, described battery modules is parallel on described DC bus, described DC bus is connected on described converter, described battery modules by a plurality of cell strings or/and be formed in parallel to increase the voltage/current of battery modules.
Particularly, be connected with the first voltage transformation unit between hydraulic testpump steam turbine generator system and emergency bus, described the first voltage transformation unit arrives hydraulic testpump steam turbine generator system normal working voltage by emergency bus voltage transformation; Be connected with the second voltage transformation unit between described auxiliary feedwater system and emergency bus, described the second voltage transformation unit arrives the auxiliary feedwater system normal working voltage by the emergency bus boost in voltage; Be connected with the 3rd voltage transformation unit between the control system of described storage battery energy-storage system self and emergency bus, described the 3rd voltage transformation unit is the operating voltage to the control system of storage battery energy-storage system self by emergency bus voltage transformation.
Under normal circumstances, emergent energy-storage system carries out grid-connected charging and grid-connected electric discharge by 10KV utility grid accumulators in nuclear power plant, and under both of these case, hydraulic testpump steam turbine generator system and auxiliary feedwater system are all in off-state.After storage battery grid-connected charging, utility grid is disconnected, emergency bus 2910 is in electroless state, and now hydraulic testpump steam turbine generator system and auxiliary feedwater system are all in on-state.
During 2100 electric discharge of storage battery energy-storage system, at first the storage battery energy-storage system drives the auxiliary burden of hydraulic testpump steam turbine generator system and self system.The hydraulic testpump steam turbine generator system enters specified running status, and after emergency bus 2910 voltages return to normal level,, 2100 power supplies of storage battery energy-storage system are to auxiliary feedwater system.It should be noted that, it is directly to start according to the online monitoring system control command that the storage battery energy-storage system drives the hydraulic testpump steam turbine generator system, and the storage battery energy-storage system to power to auxiliary feedwater system be artificial access.
In concrete application, for guaranteeing emergency bus 2910 voltage constants, the storage battery energy-storage system need to provide certain reactive power to auxiliary feedwater system.Such as adopting 5 energy-storage system module 2110 parallel runnings, 1 energy-storage system module 2110 is as primary, another 4 energy-storage system modules 2110 are as standby, 4 respectively provide active power 250kW from energy-storage system module 2110, reactive power 433kvar, at this moment main energy-storage system module 2110 need to provide the reactive power over 1Mvar, just can guarantee that emergency bus 2910 voltages keep constant.The benefit arranged like this is can send more jumbo reactive power under the prerequisite that does not increase battery capacity, in the unit starting process for auxiliary feedwater system, provides enough voltage supports.The capacity of main energy-storage system module 2110 is limited by heap(ed) capacity, and in auxiliary feedwater system No Load Start process, emergency bus 2910 voltages can drop to 84% left and right of rated power so.This process will last till to be calculated and approximately needs to continue the several seconds by existing parameters simulation when the motor operation approaches with leg speed.
Further, described online monitoring system detects magnitude of voltage and the frequency values of external electrical network in real time, judge that whether grid-connected point voltage value and frequency values reach default protection threshold value, judge in magnitude of voltage and frequency values, whether at least one reaches described default protection threshold value; If in magnitude of voltage and frequency values, at least one reaches described default protection threshold value; judge whether described storage battery energy-storage system receives the isolated island starting command; if no, the anti-unplanned island protect signal of output, prevent the unplanned island mode that enters of storage battery energy-storage system.
As shown in Figure 10 a, particularly, described converter comprises touch screen, described touch screen comprises the pattern control unit, described pattern control unit is controlled converter in exit control model, local control model and distance control mode including, but not limited to locking, wherein locking is exited control model and is referred to that converter can accept the input signal of battery management system, and be transferred to online monitoring system, but the control command of shielding online monitoring system and the control command that shields self; Described local control model refers to the control command of not accepting online monitoring system, allows operating personnel at the enterprising line operate of touch screen, progressively realizes the stable operation of operating mode; Described distance control mode refers to the control command of accepting online monitoring system, realizes the automatic startup of operating mode and stops.
Further, described touch screen also comprises:
Discharge and recharge the set of time module, for charging interval and the discharge time of setting converter.
The frequency modulation module, for changing the power output of converter, participate in the adjusting of system frequency, reduces the variation of mains frequency.
As shown in Figure 10 b, described converter also comprises:
Selftest module, carry out self check to software and hardware while starting for converter;
Reseting module, while for converter, because of interference, causing the program endless loop, carry out automatically recovering normal operation;
Further, converter also comprises:
Detection module, for the communication connection of timing detection device and online monitoring system, if communication disruption occurs, send alarm signal to alarm module;
Alarm module is reported to the police after receiving alarm signal.
In the embodiment of the present invention, converter can bear the current overload in electric machinery stating with load process, has higher dynamic shunt responding ability, such as starting current within 6 second time need reach more than 5.5 times of rated current.
In the embodiment of the present invention, the operational mode of converter is including, but not limited to the state of being incorporated into the power networks and lonely Running State, and the state of being incorporated into the power networks comprises grid-connected discharge condition, grid-connected charge mode, holding state, malfunction and emergency shutdown state; Described lonely Running State comprises inverter mode, holding state, malfunction and emergency shutdown state.Converter should be able to switch above-mentioned running status fast, can receive isolated island starting command dry contact signal, receives after signal to transfer the required time of island mode rated power discharge condition to from the grid-connected charge mode of rated power and should be less than 50ms.
Converter is communicated by letter with the battery management system in subsystem, the Data Dynamic adjustment provided according to battery management system discharges and recharges parameter, carries out corresponding actions, the closed-loop control of realization to charging/discharging voltage and electric current, discharge and recharge the property indices in stage to meet battery at each.When converter charges to the storage battery current stabilization, if receive the overvoltage alarm signal that battery management system sends, charging current should reduce automatically.The charging incipient stage, should take necessary current limiting measures according to the needs of battery, avoid the infringement of impulse current to battery and converter self.When receiving that overcharge alarm signal, battery unit terminal voltage value of battery management system is elevated to charge cutoff voltage, or charging current stops the charging to battery while being reduced to a threshold value.When the overdischarge alarm signal that receives battery management system is arranged, or the battery unit terminal voltage stops the electric discharge of battery while being reduced to final discharging voltage.
In the embodiment of the present invention, the converter device has frequency modulation function, when the external load fluctuation, when mains frequency changes, in the scope that converter allows at its variable capacity, take full advantage of the fast feature of self feedback speed, change its power output, participate in the adjusting of system frequency, reduce the variation of mains frequency.This function is mainly realized according to local information automatically by station control system and converter controller, but the relevant control parameter should be arranged and be revised by a supervisory control system station level distant place.
The function that in the embodiment of the present invention, converter possesses in the islet operation situation and between other converter device, automatic synchronization is controlled, while guaranteeing islet operation, many group converters can be powered to steady load according to unified voltage, frequency, can bear normal load fluctuation simultaneously and impact.
In the embodiment of the present invention, storage battery energy-storage system 2100 has anti-seismic structure and is fixed in the enclosure space of fire prevention, waterproof.Storage battery energy-storage system 2100 is compared with diesel engine etc., it has the incomparable advantage of diesel engine: at first, need consumed cabin air during diesel engine work, it can't seal isolated with outside at all, once produce the disaster of the super design references such as tsunami, flood, current will directly impact and flood diesel engine, diesel engine unit can't be worked, as last one emergency power supply of current nuclear power station, its reliability is low; Provide the system of emergency power supply and the embodiment of the present invention provides to nuclear power station, can be in fully isolated space during its interior battery-operated, to produce certain heat while considering accumulator cell charging and discharging, can heat be discharged by air-conditioning equipment or heat-pipe radiator or hot plate radiator.Particularly, the evaporation ends of heat pipe or hot plate can be closely attached on to storage battery or suitable position, then condensation end is positioned over to the outside, isolated space, heat pipe or hot plate are arranged in the body of wall in isolated space and are arranged to sealing.The heat that storage battery produces by evaporation ends by liquid evaporation in heat pipe or hot plate, then in condensation end liquefaction, the heat produced during by accumulator cell charging and discharging is taken out of, reaches the purpose of heat radiation, the liquid of condensation end is back to evaporation ends along the capillary in heat pipe again, forms the heat radiation circulation.So that the working temperature of storage battery maintains in rational scope, thus the invention process is provided to nuclear power station, provide the system of emergency power supply can the operation of normal reliable ground, and be conducive to extend the useful life of storage battery.In addition, also available air-conditioning, water cooling plant carry out cooling to storage battery energy-storage system 2100.In addition, diesel engine unit is as a kind of plant equipment of complexity, it consists of thousands of above parts, fault point is many and be difficult for getting rid of, once diesel engine unit produces mechanical breakdown, it can't move reliably, and the emergent energy-storage system of a kind of nuclear power station that the embodiment of the present invention provides, it is by modular design, can easily energy-storage system module 2110 be increased in storage battery energy-storage system 2100 or directly replace out of order energy-storage system module 2110, in concrete application, a plurality of standby energy-storage system modules 2110 can be set, these energy-storage system modules 2110 are in standby mode at ordinary times, once energy-storage system module 2110 is arranged in system to be damaged, the energy-storage system module 2110 of damage can be opened from system break, and by standby energy-storage system module 2110 and to system, the assurance system still can be moved reliably in worst situation.In addition, the need of work diesel oil of diesel engine unit, diesel oil is as a kind of combustibles, it is deposited and requires highly, not only will prevent fires anti-flaming, and need to take precautions against some remaining accidents, danger coefficient is high, and the operation method of the emergent energy-storage system of the nuclear power station that the embodiment of the present invention provides, there are not these problems in it, and reliability is high.Finally, diesel engine unit starts and to set up the required time of power longer, and the emergent energy-storage system islet operation method of the nuclear power station that the embodiment of the present invention provides, it is almost instantaneous that its storage battery provides power supply, life period is not poor, for the station-service emergency set that uninterrupted requirement is arranged, has great significance.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace or improvement etc., within all should being included in protection scope of the present invention.
Claims (15)
1. the emergent energy-storage system islet operation method of a nuclear power station, it is characterized in that, comprise islet operation pattern and non-islet operation pattern, comprise: after receiving the isolated island starting command, enter the islet operation pattern, control the storage battery energy-storage system nuclear power generating equipment of dead electricity is powered, the step that wherein said control storage battery energy-storage system is powered to the nuclear power generating equipment of dead electricity comprises:
Controlling the storage battery energy-storage system drives the control system of hydraulic testpump steam turbine generator system and storage battery energy-storage system self normally to move;
Controlling the storage battery energy-storage system drives auxiliary feedwater system normally to move;
After external electrical network is recovered normally, and grid-connected circuit breaker electric voltage on line side detected after the normal and lasting scheduled time, disconnect storage battery energy-storage system outlet breaker, enter non-islet operation pattern.
2. the emergent energy-storage system islet operation method of nuclear power station as claimed in claim 1, is characterized in that, also comprises:
After entering non-islet operation pattern, the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, controls external electrical network the storage battery energy-storage system charged.
3. the emergent energy-storage system islet operation method of nuclear power station as claimed in claim 2, is characterized in that, also comprises:
The size of judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the battery energy storage system is charged.
4. the emergent energy-storage system islet operation method of nuclear power station as claimed in claim 3, is characterized in that, also comprises:
Described storage battery energy-storage system is connected to external electrical network, carries out single-row discharge test.
5. the emergent energy-storage system islet operation method of nuclear power station as claimed in claim 1, is characterized in that, also comprises:
Detect in real time magnitude of voltage and the frequency values of external electrical network, judge in the magnitude of voltage of external electrical network and frequency values, whether at least one reaches the default threshold value of protecting;
If in magnitude of voltage and frequency values, at least one reaches described default protection threshold value, judge whether to receive the isolated island starting command, if do not have, the anti-unplanned island protect signal of output, prevent the unplanned island mode that enters of storage battery energy-storage system.
6. the emergent energy-storage system islet operation system of a nuclear power station, it is characterized in that, comprise on-line control system and storage battery energy-storage system, after described storage battery energy-storage system receives the isolated island starting command of on-line control system, enter the islet operation pattern, the storage battery energy-storage system drives the normal operation of the control system of hydraulic testpump steam turbine generator system and storage battery energy-storage system self and drives auxiliary feedwater system normally to move; After external electrical network is recovered normally, and grid-connected circuit breaker electric voltage on line side detected after the normal and lasting scheduled time, the energy-storage system outlet breaker disconnects, and enters non-islet operation pattern.
7. the emergent energy-storage system islet operation system of nuclear power station as claimed in claim 6, it is characterized in that, after described storage battery energy-storage system enters non-islet operation pattern, the size of judgement storage battery energy-storage system voltage and the first voltage threshold, if the magnitude of voltage of storage battery energy-storage system is less than the first voltage threshold, is connected to external electrical network and is charged.
8. the emergent energy-storage system islet operation system of nuclear power station as claimed in claim 7, it is characterized in that, the size of described storage battery energy-storage system judgement storage battery energy-storage system voltage and second voltage threshold value, if the magnitude of voltage of storage battery energy-storage system is greater than described the first voltage threshold and reaches described second voltage threshold value, finish the storage battery energy-storage system is charged.
9. the emergent energy-storage system islet operation system of nuclear power station as claimed in claim 6, it is characterized in that, described storage battery energy-storage system comprises the energy-storage system module of a plurality of parallel connections, described energy-storage system module is connected on emergency bus by bus rod, described energy-storage system module comprises at least one primary energy-storage system module and at least one back-up system module, described primary energy-storage system module and back-up system module include converter and array, array is connected on bus rod by converter, described array comprises DC bus and battery modules, described battery modules is parallel on described DC bus, described DC bus is connected on described converter, described battery modules by a plurality of cell strings or/and be formed in parallel to increase the voltage/current of battery modules.
10. the emergent energy-storage system islet operation system of nuclear power station as claimed in claim 9, it is characterized in that, be connected with the first voltage transformation unit between described hydraulic testpump steam turbine generator system and emergency bus, described the first voltage transformation unit arrives hydraulic testpump steam turbine generator system normal working voltage by emergency bus voltage transformation; Be connected with the second voltage transformation unit between described auxiliary feedwater system and emergency bus, described the second voltage transformation unit arrives the auxiliary feedwater system normal working voltage by the emergency bus boost in voltage; Be connected with the 3rd voltage transformation unit between the control system of described storage battery energy-storage system self and emergency bus, described the 3rd voltage transformation unit is the operating voltage to the control system of storage battery energy-storage system self by emergency bus voltage transformation.
The energy-storage system islet operation system 11. nuclear power station as claimed in claim 6 is met an urgent need, it is characterized in that, described online monitoring system detects magnitude of voltage and the frequency values of external electrical network in real time, judge that whether grid-connected point voltage value and frequency values reach default protection threshold value, judge in magnitude of voltage and frequency values, whether at least one reaches described default protection threshold value; If in magnitude of voltage and frequency values, at least one reaches described default protection threshold value; judge whether described storage battery energy-storage system receives the isolated island starting command; if no, the anti-unplanned island protect signal of output, prevent the unplanned island mode that enters of storage battery energy-storage system.
The energy-storage system islet operation system 12. nuclear power station as claimed in claim 9 is met an urgent need, it is characterized in that, described converter comprises touch screen, described touch screen comprises the pattern control unit, described pattern control unit is controlled converter in including, but not limited to locking, exiting control model, local control model and distance control mode, wherein locking is exited control model and is referred to that converter can accept the input signal of battery management system, and be transferred to online monitoring system, but the control command of shielding online monitoring system and the control command that shields self, described local control model refers to the control command of not accepting online monitoring system, allows operating personnel at the enterprising line operate of touch screen, progressively realizes the stable operation of operating mode, described distance control mode refers to the control command of accepting online monitoring system, realizes the automatic startup of operating mode and stops.
The energy-storage system islet operation system 13. nuclear power station as claimed in claim 12 is met an urgent need, is characterized in that, described touch screen also comprises:
Discharge and recharge the set of time module, for charging interval and the discharge time of setting converter.
The frequency modulation module, for changing the power output of converter, participate in the adjusting of system frequency, reduces the variation of mains frequency.
The energy-storage system islet operation system 14. nuclear power station as claimed in claim 12 is met an urgent need, is characterized in that, described converter also comprises:
Selftest module, carry out self check to software and hardware while starting for converter;
Reseting module, while for converter, because of interference, causing the program endless loop, carry out automatically recovering normal operation;
The energy-storage system islet operation system 15. nuclear power station as claimed in claim 14 is met an urgent need, is characterized in that, described converter also comprises:
Detection module, for the communication connection of timing detection device and online monitoring system, if communication disruption occurs, send alarm signal to alarm module;
Alarm module is reported to the police after receiving alarm signal.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125693A (en) * | 2014-08-12 | 2014-10-29 | 国网重庆市电力公司 | Transformer substation lighting control system and control method implemented by same |
| CN107947348A (en) * | 2017-12-13 | 2018-04-20 | 中广核工程有限公司 | The electric power system of nuclear power plant's Primary hydraulic test |
| CN108701497A (en) * | 2015-12-17 | 2018-10-23 | 纽斯高动力有限责任公司 | Multimode power equipment with off-network power supply |
| CN110112771A (en) * | 2019-04-16 | 2019-08-09 | 中广核研究院有限公司 | The method and device of nuclear power plant's generator excitation unit detection operation state of generator |
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| CN111271215A (en) * | 2020-02-18 | 2020-06-12 | 唐山鼎信电器仪表工程有限公司 | Overload protection method for hydroelectric generating set |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100086645A (en) * | 2009-01-23 | 2010-08-02 | 삼성중공업 주식회사 | Power supply system of ship |
| CN102195334A (en) * | 2011-05-20 | 2011-09-21 | 中国广东核电集团有限公司 | Method and system for improving reliability of emergency power supplies of nuclear power plant |
| CN102255377A (en) * | 2011-05-20 | 2011-11-23 | 中国广东核电集团有限公司 | Method and system for supplying emergency power supply to nuclear power station |
-
2012
- 2012-05-16 CN CN201210152062.5A patent/CN103427471B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100086645A (en) * | 2009-01-23 | 2010-08-02 | 삼성중공업 주식회사 | Power supply system of ship |
| CN102195334A (en) * | 2011-05-20 | 2011-09-21 | 中国广东核电集团有限公司 | Method and system for improving reliability of emergency power supplies of nuclear power plant |
| CN102255377A (en) * | 2011-05-20 | 2011-11-23 | 中国广东核电集团有限公司 | Method and system for supplying emergency power supply to nuclear power station |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125693A (en) * | 2014-08-12 | 2014-10-29 | 国网重庆市电力公司 | Transformer substation lighting control system and control method implemented by same |
| CN104125693B (en) * | 2014-08-12 | 2016-04-06 | 国网重庆市电力公司 | The control method of transformer station's lamp light control system |
| CN108701497A (en) * | 2015-12-17 | 2018-10-23 | 纽斯高动力有限责任公司 | Multimode power equipment with off-network power supply |
| CN108701497B (en) * | 2015-12-17 | 2022-06-24 | 纽斯高动力有限责任公司 | Multi-modular power equipment with off-grid power supply |
| CN107947348A (en) * | 2017-12-13 | 2018-04-20 | 中广核工程有限公司 | The electric power system of nuclear power plant's Primary hydraulic test |
| CN110112771A (en) * | 2019-04-16 | 2019-08-09 | 中广核研究院有限公司 | The method and device of nuclear power plant's generator excitation unit detection operation state of generator |
| CN110415847A (en) * | 2019-07-01 | 2019-11-05 | 中广核工程有限公司 | A kind of alleviation nuclear power plant major accident system and method |
| CN111271215A (en) * | 2020-02-18 | 2020-06-12 | 唐山鼎信电器仪表工程有限公司 | Overload protection method for hydroelectric generating set |
| TWI775230B (en) * | 2020-09-11 | 2022-08-21 | 嘉凱能源科技有限公司 | Auxiliary gas turbine generator (Aux. GT) is incorporated into the standby system of the combined cycle generator set (CC Unit) |
| CN114576412A (en) * | 2022-03-11 | 2022-06-03 | 四川水利职业技术学院 | Control system with runner protection and energy storage type hydropower station gate or valve |
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Address after: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city Guangdong province 518031 17 19 floor Applicant after: China General Nuclear Power Corporation Applicant after: Dayawan Nuclear Power Running Management Co., Ltd. Address before: Shenzhen science and technology building, No. 1001 Futian District Road, Shenzhen city Guangdong province 518031 17 19 floor Applicant before: China Guangdong Nuclear Power Group Co., Ltd. Applicant before: Dayawan Nuclear Power Running Management Co., Ltd. |
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