CN106026811A - Black start control system and method for excitation system of pumped storage power station - Google Patents
Black start control system and method for excitation system of pumped storage power station Download PDFInfo
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- CN106026811A CN106026811A CN201610318966.9A CN201610318966A CN106026811A CN 106026811 A CN106026811 A CN 106026811A CN 201610318966 A CN201610318966 A CN 201610318966A CN 106026811 A CN106026811 A CN 106026811A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/08—Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/10—Special adaptation of control arrangements for generators for water-driven turbines
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- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a black start control system and method for the excitation system of a pumped storage power station and relates to the technical field of hydropower station black start. The black start control system and method solve a problem that a hydraulic generator can be automatically black started within preset time after being stopped by faults so as to rapidly restore the power supply of a power system, and are high in reliability and good in safety. The black start control system comprises a standby power supply, a monitoring system, an excitation system, and a hydraulic generator. The standby power supply, the excitation system, and the hydraulic generator are connected with the monitoring system. The standby power supply and the hydraulic generator are connected with the excitation system. After the power system powered by the hydraulic generator is subjected to power outage, a generator set with a black start capability is started to generate power and further drive the hydraulic generator without a black start capability to generate power, thereby gradually restoring the whole power system.
Description
Technical field
The present invention relates to power station black starting-up technical field, be specifically related to Excitation System on Pumped Storage Power Stations black starting-up and control device and control method thereof.
Background technology
Existing hydrogenerator is the most all not equipped with after a shutdown can automatically actuated black starting-up device; after hydrogenerator is because of disorderly closedown; it is necessary for taking manually to each hydrogenerator of on-the-spot deactivation in power station; can not be in time for power system recovery electric power after causing power failure; power recovery speed is slow; efficiency is low, poor reliability, affects greatly to productive life.Therefore, design a kind of hydrogenerator shut down after within the setting time, can seem the most necessary by the control device of automatic recovery of power supply.
Summary of the invention
The present invention is to solve existing hydrogenerator because can not automatically start the deficiency of generating after disorderly closedown; there is provided a kind of after hydrogenerator is because of disorderly closedown; the automatic black starting-up of hydrogenerator can be carried out at the appointed time; thus the power supply of quick-recovery power system soon; it is prone to position the position of hydrogenerator; reliability is high, and the Excitation System on Pumped Storage Power Stations black starting-up that safety is good controls device and control method thereof.
To achieve these goals, the present invention is by the following technical solutions:
Excitation System on Pumped Storage Power Stations black starting-up controls device, including stand-by power supply, monitoring system, excitation system and hydrogenerator, described stand-by power supply, excitation system and hydrogenerator are connected with monitoring system respectively, and described stand-by power supply and hydrogenerator are connected with excitation system respectively；Being provided with address scrambler and speed probe on the hydraulic turbine, described address scrambler and speed probe are connected with monitoring system respectively.
In this programme, when after the power system occurrence of large-area power outage being provided electric power by hydrogenerator, utilize the generating set with black start-up ability to start generating, and then drive the turbine-generator units without black start-up ability to generate electricity, gradually recover whole power system.
In use, black starting-up starts, and monitoring system assigns start order, and hydrogenerator first reaches hydraulic turbine state；Then, after the rotating speed of the hydraulic turbine is more than setting speed, monitoring system sends out excitation black starting-up mode command to excitation system, and excitation system is adjusted to excitation black starting-up mode command mode, excitation system is then adjusted to excitation black starting-up and puts into command mode.After excitation system receives excitation black starting-up mode command, monitoring system allows the excitation alternating-current switch of excitation system close and allow the degaussing switch of excitation system close in succession；Then monitoring system is ordered to close the hydrogenerator switch of hydrogenerator；After excitation system receives the excitation black starting-up mode command of self-monitoring system, through judging, if the set end voltage of hydrogenerator is 0, just the shaping modes of excitation system is set to excitation manual electric current regulative mode, and the exciting current initiation value of default black starting-up；When receiving excitation off-duty signal, excitation system is put into excitation black starting-up and puts into coomand mode；After excitation system receives the signal that excitation black starting-up puts into order, excitation puts into order, excitation alternating-current switch closes a floodgate and degaussing switch closes a floodgate simultaneously, the hydrogenerator switch closed before adding, then through one and door of excitation system, excitation system sends input direct current excitation order and puts into rectifier bridge order, electric station DC power supply by water energy generator is connected to the rotor of hydrogenerator, and the alternating current sent by hydrogenerator puts into rectifier bridge；After direct current excitation success, exciting current first rises to the exciting current initiation value pre-set automatically, then, magnetic is the most manually increased at excitation local control, until the set end voltage of hydrogenerator to be risen to rated value, and the set end voltage circuit of hydrogenerator is charged, after the set end voltage of hydrogenerator is more than the setting value of the set end voltage rated value of hydrogenerator, by the excitation black starting-up pattern involution of excitation system, terminate the excitation black starting-up of hydrogenerator.This programme i.e. may know that it is which platform hydrogenerator occurs in that fault by address scrambler and speed probe, simple and easy to use.
This programme is after hydrogenerator is because of disorderly closedown; the automatic black starting-up of hydrogenerator can be carried out at the appointed time; thus the power supply of quick-recovery power system soon; the demand restored electricity at the appointed time with the power system after reply fault; it is prone to position the position of hydrogenerator; reliability is high, and safety is good.
As preferably, excitation system includes switching K1, switch K2, switch K3, switch K4, switch K5, switch K6, relay J 1, relay J 2, relay J 3, relay J 4, relay J 5, relay J 6, relay J 7, relay J 8, excitation catalyst C2, degaussing switch, degaussing switch closing coil, excitation alternating-current switch, excitation alternating-current switch closing coil, excitation black starting-up mode command starts module, excitation manual electric current regulative mode starts module, exciting current initiation value arranges module, excitation black starting-up puts into order and starts module, the rotor of hydrogenerator and rectifier bridge；Hydrogenerator includes that hydrogenerator switchs；The two ends of the series circuit that the controlled terminal controlling end and switch K2 of described relay J 8 is formed after being connected in series are connected to the two ends of stand-by power supply again；The two ends of the series circuit that the controlled terminal controlling end, the controlled terminal normally-closed contact 1-2 of relay J 8 and switch K3 of described relay J 2 is formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；The two ends of the controlled terminal normally-closed contact 1-2 of described relay J 2 and the series circuit controlling to be formed after end is connected in series of relay J 3 are connected to the two ends of stand-by power supply again；The two ends of the series circuit that the controlled terminal normally-closed contact 3-4 of described relay J 2, the controlled terminal controlling end and switch K4 of relay J 4 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；The two ends of the series circuit that the controlled terminal normally-closed contact 5-6 of described relay J 2, the controlled terminal controlling end and switch K5 of relay J 5 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；The two ends of the series circuit that the controlled terminal normally-closed contact 7-8 of described relay J 2, the controlled terminal controlling end and switch K6 of relay J 6 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；The two ends of the controlled terminal of the controlled terminal normally-closed contact 1-2 of described relay J 6, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch, hydrogenerator switch and the series circuit controlling to be formed after end is sequentially connected in series of excitation catalyst C2 are connected to the two ends of stand-by power supply again；The two ends of the controlled terminal of the controlled terminal normally-closed contact 1-2 of described relay J 6, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch, hydrogenerator switch and the series circuit controlling to be formed after end is sequentially connected in series of relay J 7 are connected to the two ends of stand-by power supply again；The two ends of the controlled terminal normally-closed contact 1-2 of described relay J 1 and the series circuit controlling to be formed after end is connected in series of excitation alternating-current switch closing coil are connected to the two ends of stand-by power supply again；The two ends of the controlled terminal normally-closed contact 3-4 of described relay J 1 and the series circuit controlling to be formed after end is connected in series of degaussing switch closing coil are connected to the two ends of stand-by power supply again；The two ends of the series circuit that the controlled terminal controlling end and switch K1 of described relay J 1 is formed after being connected in series are connected to the two ends of stand-by power supply again；The described controlled terminal of excitation alternating-current switch closing coil is connected with the control end of excitation alternating-current switch；The controlled terminal of described degaussing switch closing coil is connected with the control end of degaussing switch；Described switch K1 control end, switch K2 control end, switch K3 control end, switch K4 control end, switch K5 control end and switch K6 control end be connected with monitoring system respectively；The control end that the controlled terminal of relay J 3 starts module with excitation black starting-up mode command is connected, the controlled terminal of relay J 4 electric current manual with excitation regulative mode starts the control end of module and is connected, the controlled terminal of relay J 5 arranges the control end of module and is connected with exciting current initiation value, the controlled terminal of relay J 6 puts into the control end of order startup module and is connected with excitation black starting-up, the controlled terminal of excitation catalyst C2 is connected with the control end of the rotor of hydrogenerator, and the controlled terminal of relay J 7 is connected with rectifier bridge.
A kind of Excitation System on Pumped Storage Power Stations black starting-up that is suitable to controls the control method of device, and the excitation black starting-up including hydrogenerator controls process, and it is as follows that the excitation black starting-up of described hydrogenerator controls process:
(3-1) black starting-up starts, and monitoring system assigns start order to hydrogenerator, and hydrogenerator reaches hydraulic turbine state；
(3-2) after the rotating speed of the hydraulic turbine is more than 90% rated speed, monitoring system orders to close the switch K3 of excitation system, allow the coil electricity of relay J 2, though close with the normally opened contact 1-2 of relay J 2, the normally opened contact 7-8 Guan Bi of the normally opened contact 5-6 Guan Bi of the normally opened contact 3-4 Guan Bi of relay J 2, relay J 2, relay J 2 and the normally opened contact 9-10 Guan Bi of relay J 2；When the coil electricity of relay J 3, the excitation black starting-up mode command connecting excitation system starts module, and excitation system is adjusted to excitation black starting-up mode command mode；
(3-3) when excitation system has excitation run signal, monitoring system orders to close switch K6, the coil electricity of relay J 6, thus the excitation black starting-up connecting excitation system puts into order startup module, excitation system is adjusted to excitation black starting-up and puts into command mode, and make the normally opened contact 1-2 of relay J 6 close；
(3-4) then, monitoring system sends excitation to the switch K1 of excitation system and puts into order, switch K1 Guan Bi, the coil electricity of relay J 1, and the contact 1-2 of relay J 1 closes and the contact 3-4 Guan Bi of relay J 1 immediately；After the contact 1-2 of relay J 1 closes, the excitation alternating-current switch closing coil energising of excitation system allows the excitation alternating-current switch of excitation system close；
(3-5) after the contact 3-4 of relay J 1 closes, the degaussing switch closing coil energising of excitation system allows the degaussing switch of excitation system close；
(3-6) then, monitoring system is ordered to close hydrogenerator switch；
(3-7) when hydrogenerator set end voltage more than hydrogenerator set end voltage rated value 60% and less than hydrogenerator set end voltage rated value 90% time, monitoring system orders to close switch K4, the coil electricity of relay J 4, thus the excitation manual electric current regulative mode connecting excitation system starts module, and excitation system is adjusted to excitation manual electric current regulative mode；
(3-8) when the set end voltage of hydrogenerator is less than the 60% of the set end voltage rated value of hydrogenerator, monitoring system orders to close switch K5, the coil electricity of relay J 5, exciting current initiation value arranges module and starts, the exciting current of excitation system is set to exciting current initiation value, this exciting current initiation value is B times of the rated exciting current value of excitation system, and 0 ＜ B ＜ 1；
(3-9) after allowing excitation alternating-current switch close, allow degaussing switch close and allowing hydrogenerator switch close, allow the normally opened contact 1-2 of relay J 6 close simultaneously, excitation catalyst C2 and relay J 7 action will be made；When, after the coil electricity of excitation catalyst C2, connecting excitation contact modules, the electric station DC power supply of water energy generator is connected to the rotor of hydrogenerator；
(3-10), after relay J 7 action, the alternating current sent by hydrogenerator puts into rectifier bridge；
(3-11) then, through direct current excitation, the exciting current of excitation system is first risen to automatically the exciting current initiation value pre-set；
(3-12) then, the excitation local control in excitation system the most manually increases magnetic, and the set end voltage of hydrogenerator rises to the set end voltage rated value of hydrogenerator；
(3-13) the set end voltage circuit of hydrogenerator is charged, after the set end voltage of hydrogenerator is more than the 98% of the set end voltage rated value of hydrogenerator, monitoring system orders to switch K2 Guan Bi, make relay J 8 action, the normally-closed contact 1-2 of relay J 8 action relief relay J 8 disconnects, by the excitation black starting-up pattern involution of excitation system, thus the excitation black starting-up terminating hydrogenerator controls process.
The present invention can reach following effect:
The present invention is after hydrogenerator is because of disorderly closedown; the automatic black starting-up of hydrogenerator can be carried out at the appointed time; thus the power supply of quick-recovery power system soon; the demand restored electricity at the appointed time with the power system after reply fault; it is prone to position the position of hydrogenerator; reliability is high, and safety is good.
Accompanying drawing explanation
Fig. 1 is a kind of overall circuit principle attachment structure schematic block diagram of the embodiment of the present invention.
Fig. 2 is a kind of circuit theory attachment structure schematic diagram that embodiment of the present invention excitation system black starting-up controls loop.
Fig. 3 is the another kind of circuit theory attachment structure schematic diagram that embodiment of the present invention excitation system black starting-up controls loop.
Fig. 4 is a kind of excitation black starting-up main control logic principle attachment structure schematic block diagram of the embodiment of the present invention.
Fig. 5 is a kind of excitation alternating-current switch of the embodiment of the present invention, degaussing switch control logic theory attachment structure schematic block diagram.
Fig. 6 is a kind of excitation of the embodiment of the present invention and puts into rectifier bridge control logic theory attachment structure schematic block diagram.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment, Excitation System on Pumped Storage Power Stations black starting-up controls device, see shown in Fig. 1, Fig. 2, Fig. 3, including stand-by power supply, monitoring system, excitation system and hydrogenerator, described stand-by power supply, excitation system and hydrogenerator are connected with monitoring system respectively, and described stand-by power supply and hydrogenerator are connected with excitation system respectively.Being provided with address scrambler and speed probe on the hydraulic turbine, described address scrambler and speed probe are connected with monitoring system respectively.
Excitation system includes switching K1, switch K2, switch K3, switch K4, switch K5, switch K6, relay J 1, relay J 2, relay J 3, relay J 4, relay J 5, relay J 6, relay J 7, relay J 8, excitation catalyst C2, degaussing switch, degaussing switch closing coil, excitation alternating-current switch, excitation alternating-current switch closing coil, excitation black starting-up mode command starts module, excitation manual electric current regulative mode starts module, exciting current initiation value arranges module, excitation black starting-up puts into order and starts module, the rotor of hydrogenerator and rectifier bridge.
Hydrogenerator includes that hydrogenerator switchs.
The two ends of the series circuit that the controlled terminal controlling end and switch K2 of described relay J 8 is formed after being connected in series are connected to the two ends of stand-by power supply again；
The two ends of the series circuit that the controlled terminal controlling end, the controlled terminal normally-closed contact 1-2 of relay J 8 and switch K3 of described relay J 2 is formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；
The two ends of the controlled terminal normally-closed contact 1-2 of described relay J 2 and the series circuit controlling to be formed after end is connected in series of relay J 3 are connected to the two ends of stand-by power supply again；
The two ends of the series circuit that the controlled terminal normally-closed contact 3-4 of described relay J 2, the controlled terminal controlling end and switch K4 of relay J 4 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；
The two ends of the series circuit that the controlled terminal normally-closed contact 5-6 of described relay J 2, the controlled terminal controlling end and switch K5 of relay J 5 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；
The two ends of the series circuit that the controlled terminal normally-closed contact 7-8 of described relay J 2, the controlled terminal controlling end and switch K6 of relay J 6 are formed after being sequentially connected in series are connected to the two ends of stand-by power supply again；
The two ends of the controlled terminal of the controlled terminal normally-closed contact 1-2 of described relay J 6, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch, hydrogenerator switch and the series circuit controlling to be formed after end is sequentially connected in series of excitation catalyst C2 are connected to the two ends of stand-by power supply again；
The two ends of the controlled terminal of the controlled terminal normally-closed contact 1-2 of described relay J 6, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch, hydrogenerator switch and the series circuit controlling to be formed after end is sequentially connected in series of relay J 7 are connected to the two ends of stand-by power supply again；
The two ends of the controlled terminal normally-closed contact 1-2 of described relay J 1 and the series circuit controlling to be formed after end is connected in series of excitation alternating-current switch closing coil are connected to the two ends of stand-by power supply again；
The two ends of the controlled terminal normally-closed contact 3-4 of described relay J 1 and the series circuit controlling to be formed after end is connected in series of degaussing switch closing coil are connected to the two ends of stand-by power supply again；
The two ends of the series circuit that the controlled terminal controlling end and switch K1 of described relay J 1 is formed after being connected in series are connected to the two ends of stand-by power supply again；
The described controlled terminal of excitation alternating-current switch closing coil is connected with the control end of excitation alternating-current switch；
The controlled terminal of described degaussing switch closing coil is connected with the control end of degaussing switch；
Described switch K1 control end, switch K2 control end, switch K3 control end, switch K4 control end, switch K5 control end and switch K6 control end be connected with monitoring system respectively；
The control end that the controlled terminal of relay J 3 starts module with excitation black starting-up mode command is connected,
The controlled terminal of relay J 4 electric current manual with excitation regulative mode starts the control end of module and is connected,
The controlled terminal of relay J 5 arranges the control end of module and is connected with exciting current initiation value,
The controlled terminal of relay J 6 puts into the control end of order startup module and is connected with excitation black starting-up,
The controlled terminal of excitation catalyst C2 is connected with the control end of the rotor of hydrogenerator,
The controlled terminal of relay J 7 is connected with rectifier bridge.
Described stand-by power supply is the DC source of DC-110V to DC+110V.The negative pole end of stand-by power supply is DC-110V, and the negative pole end of stand-by power supply is DC+110V.
Excitation system also includes excitation local control cabinet, is cashier's office in a shop provided with at excitation local control and manually increases magnetically condition key.
Hydrogenerator includes that electric station DC power supply, electric station DC power supply are connected with the rotor of hydrogenerator.
In the present embodiment, when after the power system occurrence of large-area power outage being provided electric power by hydrogenerator, utilize the generating set with black start-up ability to start generating, and then drive the turbine-generator units without black start-up ability to generate electricity, gradually recover whole power system.
In use, black starting-up starts, and monitoring system assigns start order, and hydrogenerator first reaches hydraulic turbine state；Then, after the rotating speed of the hydraulic turbine is more than setting speed, monitoring system sends out excitation black starting-up mode command to excitation system, and excitation system is adjusted to excitation black starting-up mode command mode, excitation system is then adjusted to excitation black starting-up and puts into command mode.After excitation system receives excitation black starting-up mode command, monitoring system allows the excitation alternating-current switch of excitation system close and allow the degaussing switch of excitation system close in succession；Then monitoring system is ordered to close the hydrogenerator switch of hydrogenerator；After excitation system receives the excitation black starting-up mode command of self-monitoring system, through judging, if the set end voltage of hydrogenerator is 0, just the shaping modes of excitation system is set to excitation manual electric current regulative mode, and the exciting current initiation value of default black starting-up；When receiving excitation off-duty signal, excitation system is put into excitation black starting-up and puts into coomand mode；After excitation system receives the signal that excitation black starting-up puts into order, excitation puts into order, excitation alternating-current switch closes a floodgate and degaussing switch closes a floodgate simultaneously, the hydrogenerator switch closed before adding, then through one and door of excitation system, excitation system sends input direct current excitation order and puts into rectifier bridge order, electric station DC power supply by water energy generator is connected to the rotor of hydrogenerator, and the alternating current sent by hydrogenerator puts into rectifier bridge；After direct current excitation success, exciting current first rises to the exciting current initiation value pre-set automatically, then, magnetic is the most manually increased at excitation local control, until the set end voltage of hydrogenerator to be risen to rated value, and the set end voltage circuit of hydrogenerator is charged, after the set end voltage of hydrogenerator is more than the setting value of the set end voltage rated value of hydrogenerator, by the excitation black starting-up pattern involution of excitation system, terminate the excitation black starting-up of hydrogenerator.The present embodiment i.e. may know that it is which platform hydrogenerator occurs in that fault by address scrambler and speed probe, simple and easy to use.
The present embodiment is after hydrogenerator is because of disorderly closedown; the automatic black starting-up of hydrogenerator can be carried out at the appointed time; thus the power supply of quick-recovery power system soon; the demand restored electricity at the appointed time with the power system after reply fault; it is prone to position the position of hydrogenerator; reliability is high, and safety is good.
Shown in Figure 4, locking excitation is started order and set end voltage and passes to or one end of door 101 more than the signal of 98% rated voltage simultaneously.When the R end of a rest-set flip-flop receive from or during the other end signal out of door 101, then be immediately performed without excitation black starting-up mode command.When the S end of a rest-set flip-flop receives the signal of black starting-up order of self-monitoring system, then it is immediately performed excitation black starting-up mode command, and the signal brought out from the S of rest-set flip-flop has been passed to respectively the one end with door 201 and one end of door 202 and the one end with door 203 simultaneously.Meanwhile, allow set end voltage be more than 60% and the signal of rated voltage less than 90% pass to and one end of door 201, and allow and go to perform excitation manual mode order from the signal out of the other end with door 201；The signal also allowing set end voltage be less than 60% rated voltage passes to and one end of door 202, and allows and go exciting current is set to exciting current initiation value order from the signal out of the other end with door 202；Excitation off-duty signal is also allowed to pass to and one end of door 203, and allow and pass to one end of not gate 301 from the signal out of the other end with door 203, and allow and go to perform to put into order without excitation black starting-up from the other end of not gate 301 signal out, also allow and go execution to have excitation black starting-up to put into from the signal out of the other end with door 203 to order.
Shown in Figure 5, the signal having excitation black starting-up to put into order is passed to or one end of door 102, and by from or the other end signal out of door 102 pass to and one end of door 204, also pass to there being excitation to be already prepared to signal and one end of door 204, then by from the S end passing to No. three rest-set flip-flops with door 204 other end signal out, again the signal that the S from No. three rest-set flip-flops brings out is passed to and one end of door 205, the signal also brought out by the S from No. three rest-set flip-flops goes to allow excitation alternating-current switch close, and allow excitation alternating-current switch closure signal pass to and one end of door 205, to go to allow degaussing switch close from the signal out of the other end with door 205 again.
Shown in Figure 6, the most first excitation black starting-up is put into order, degaussing switch closure signal, excitation alternating-current switch closure signal and hydrogenerator switch closure signals to pass to and one end of door 206, then will pass to or one end of door 103 from the signal out of the other end with door 206, then allow from or the other end signal out of door 103 go to perform respectively put into direct current excitation order and put into rectifier bridge order.
Monitoring system includes controller, rechargeable battery and the charger for rechargeable battery charging, and the monitoring side of rechargeable battery and the control end of charger are connected with controller respectively, and the power output end of rechargeable battery is connected with the feeder ear of controller.
Described charger is the charger using peak-trough electricity charging, if current time is in paddy electricity chargeable time, rechargeable battery is directly charged by charger, if current time is in peak electricity chargeable time, then just can decide whether to after needing to be charged management judgment charge rechargeable battery；If needing to charge after Charge Management judges, rechargeable battery is charged by charger, if need not charge after Charge Management judges, rechargeable battery is not charged by charger.
In peak electricity chargeable time, described charger is that the Charge Management determination methods that rechargeable battery charges is as follows:
First by controller or manually compose a basic power threshold and a basic quantity coefficient value to charger, then controller reads current time, paddy electric-opening time and the current electric quantity value of rechargeable battery, and controller calculates the difference of current time and paddy electric-opening time and draws time difference；After the charge value that the numerical value that draws is current plus rechargeable battery after basis quantity coefficient value is divided by time difference the value of gained if greater than or be then judged to forbid charging equal to basis power threshold, after the charge value that the numerical value that draws after basis quantity coefficient value is divided by time difference is current plus rechargeable battery, the value of gained is then judged to need charging if less than basis power threshold；In the last measurement period of electrokinetic cell, the average power consumption on corresponding date is multiplied by given percent coefficient and show that electricity correction value, basis power threshold are drawn plus electricity correction value by basis charge value, and basis charge value is unified numerical value.
A kind of Excitation System on Pumped Storage Power Stations black starting-up that is suitable to controls the control method of device, and the excitation black starting-up including hydrogenerator controls process, and it is as follows that the excitation black starting-up of described hydrogenerator controls process:
(3-1) black starting-up starts, and monitoring system assigns start order to hydrogenerator, and hydrogenerator reaches hydraulic turbine state；
(3-2) after the rotating speed of the hydraulic turbine is more than 90% rated speed, monitoring system orders to close the switch K3 of excitation system, allow the coil electricity of relay J 2, though close with the normally opened contact 1-2 of relay J 2, the normally opened contact 7-8 Guan Bi of the normally opened contact 5-6 Guan Bi of the normally opened contact 3-4 Guan Bi of relay J 2, relay J 2, relay J 2 and the normally opened contact 9-10 Guan Bi of relay J 2；When the coil electricity of relay J 3, the excitation black starting-up mode command connecting excitation system starts module, and excitation system is adjusted to excitation black starting-up mode command mode；
(3-3) when excitation system has excitation run signal, monitoring system orders to close switch K6, the coil electricity of relay J 6, thus the excitation black starting-up connecting excitation system puts into order startup module, excitation system is adjusted to excitation black starting-up and puts into command mode, and make the normally opened contact 1-2 of relay J 6 close；
(3-4) then, monitoring system sends excitation to the switch K1 of excitation system and puts into order, switch K1 Guan Bi, the coil electricity of relay J 1, and the contact 1-2 of relay J 1 closes and the contact 3-4 Guan Bi of relay J 1 immediately；After the contact 1-2 of relay J 1 closes, the excitation alternating-current switch closing coil energising of excitation system allows the excitation alternating-current switch of excitation system close；
(3-5) after the contact 3-4 of relay J 1 closes, the degaussing switch closing coil energising of excitation system allows the degaussing switch of excitation system close；
(3-6) then, monitoring system is ordered to close hydrogenerator switch；
(3-7) when hydrogenerator set end voltage more than hydrogenerator set end voltage rated value 60% and less than hydrogenerator set end voltage rated value 90% time, monitoring system orders to close switch K4, the coil electricity of relay J 4, thus the excitation manual electric current regulative mode connecting excitation system starts module, and excitation system is adjusted to excitation manual electric current regulative mode；
(3-8) when the set end voltage of hydrogenerator is less than the 60% of the set end voltage rated value of hydrogenerator, monitoring system orders to close switch K5, the coil electricity of relay J 5, exciting current initiation value arranges module and starts, the exciting current of excitation system is set to exciting current initiation value, this exciting current initiation value is B times of the rated exciting current value of excitation system, and 0 ＜ B ＜ 1；
(3-9) after allowing excitation alternating-current switch close, allow degaussing switch close and allowing hydrogenerator switch close, allow the normally opened contact 1-2 of relay J 6 close simultaneously, excitation catalyst C2 and relay J 7 action will be made；When, after the coil electricity of excitation catalyst C2, connecting excitation contact modules, the electric station DC power supply of water energy generator is connected to the rotor of hydrogenerator；
(3-10), after relay J 7 action, the alternating current sent by hydrogenerator puts into rectifier bridge；
(3-11) then, through direct current excitation, the exciting current of excitation system is first risen to automatically the exciting current initiation value pre-set；
(3-12) then, the excitation local control in excitation system the most manually increases magnetic, and the set end voltage of hydrogenerator rises to the set end voltage rated value of hydrogenerator；
(3-13) the set end voltage circuit of hydrogenerator is charged, after the set end voltage of hydrogenerator is more than the 98% of the set end voltage rated value of hydrogenerator, monitoring system orders to switch K2 Guan Bi, make relay J 8 action, the normally-closed contact 1-2 of relay J 8 action relief relay J 8 disconnects, by the excitation black starting-up pattern involution of excitation system, thus the excitation black starting-up terminating hydrogenerator controls process.
Describing embodiments of the present invention above in conjunction with accompanying drawing, but do not limited by above-described embodiment when realizing, those of ordinary skill in the art can make a variety of changes within the scope of the appended claims or revise.
Claims (3)
1. Excitation System on Pumped Storage Power Stations black starting-up controls device, it is characterised in that include standby electricity
Source, monitoring system, excitation system and hydrogenerator, described stand-by power supply, excitation system and water wheels
Electromotor is connected with monitoring system respectively, described stand-by power supply and hydrogenerator respectively with excitation system
Connect；The hydraulic turbine is provided with address scrambler and speed probe, described address scrambler and rotating speed
Sensor is connected with monitoring system respectively.
Excitation System on Pumped Storage Power Stations black starting-up the most according to claim 1 controls device, its
Be characterised by, excitation system include switch K1, switch K2, switch K3, switch K4, switch K5,
Switch K6, relay J 1, relay J 2, relay J 3, relay J 4, relay J 5, relay
Device J6, relay J 7, relay J 8, excitation catalyst C2, degaussing switch, degaussing switch close a floodgate
Coil, excitation alternating-current switch, excitation alternating-current switch closing coil, excitation black starting-up mode command start
Module, excitation manual electric current regulative mode starts module, exciting current initiation value arranges module, excitation
Black starting-up puts into order and starts module, the rotor of hydrogenerator and rectifier bridge；Hydrogenerator includes
Hydrogenerator switchs；The controlled terminal controlling end and switch K2 of described relay J 8 is connected in series
The two ends of the series circuit of rear formation are connected to the two ends of stand-by power supply again；Described relay J 2
The controlled terminal controlling end, the controlled terminal normally-closed contact 1-2 of relay J 8 and switch K3 is gone here and there successively
The two ends of the series circuit that connection is formed after connecting are connected to the two ends of stand-by power supply again；Described relay
The controlled terminal normally-closed contact 1-2 of device J2 and the string controlling to be formed after end is connected in series of relay J 3
The two ends of connection circuit are connected to the two ends of stand-by power supply again；The controlled terminal of described relay J 2 is normal
Closed contact 3-4, the controlled terminal controlling end and switch K4 of relay J 4 are formed after being sequentially connected in series
The two ends of series circuit be connected to the two ends of stand-by power supply again；Being controlled of described relay J 2
After end normally-closed contact 5-6, the controlled terminal controlling end and switch K5 of relay J 5 are sequentially connected in series
The two ends of the series circuit formed are connected to the two ends of stand-by power supply again；The quilt of described relay J 2
Control end normally-closed contact 7-8, the controlled terminal controlling end and switch K6 of relay J 6 is sequentially connected in series even
The two ends of the series circuit formed after connecing are connected to the two ends of stand-by power supply again；Described relay J 6
Controlled terminal normally-closed contact 1-2, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch,
The controlled terminal of hydrogenerator switch and the control end of excitation catalyst C2 are formed after being sequentially connected in series
The two ends of series circuit be connected to the two ends of stand-by power supply again；Being controlled of described relay J 6
End normally-closed contact 1-2, the controlled terminal of degaussing switch, the controlled terminal of excitation alternating-current switch, water wheels are sent out
The controlled terminal of motor switch and the series circuit controlling to be formed after end is sequentially connected in series of relay J 7
Two ends be connected to the two ends of stand-by power supply again；The controlled terminal normally-closed contact of described relay J 1
The two ends of the series circuit controlling to be formed after end is connected in series of 1-2 and excitation alternating-current switch closing coil
It is connected to the two ends of stand-by power supply again；The controlled terminal normally-closed contact 3-4 of described relay J 1 and
The two ends of the series circuit controlling to be formed after end is connected in series of degaussing switch closing coil connect the most respectively
Two ends at stand-by power supply；The controlled terminal series connection controlling end and switch K1 of described relay J 1 is even
The two ends of the series circuit formed after connecing are connected to the two ends of stand-by power supply again；Described excitation exchanges
The controlled terminal of switch closing coil is connected with the control end of excitation alternating-current switch；Described degaussing switch closes
The controlled terminal of brake cable circle is connected with the control end of degaussing switch；The control end of described switch K1, switch
K2 controls end, the control end of switch K3, the control end of switch K4, the control end of switch K5 and opens
The control end closing K6 is connected with monitoring system respectively；The controlled terminal of relay J 3 and excitation black starting-up
Mode command starts the control end of module and connects, and the controlled terminal of relay J 4 is adjusted with the manual electric current of excitation
Joint mode starts the control end of module and connects, and the controlled terminal of relay J 5 sets with exciting current initiation value
The control end putting module connects, and the controlled terminal of relay J 6 and excitation black starting-up put into order and start mould
The control end of block connects, the controlled terminal of excitation catalyst C2 and the control end of the rotor of hydrogenerator
Connecting, the controlled terminal of relay J 7 is connected with rectifier bridge.
3. the Excitation System on Pumped Storage Power Stations black starting-up that a kind is applicable to described in claim 2 controls dress
The control method put, it is characterised in that include that the excitation black starting-up of hydrogenerator controls process, institute
The excitation black starting-up control process stating hydrogenerator is as follows:
(3-1) black starting-up starts, and monitoring system assigns start order to hydrogenerator, by hydraulic generator
Machine reaches hydraulic turbine state；
(3-2) after the rotating speed of the hydraulic turbine is more than 90% rated speed, monitoring system orders to close excitation
The switch K3 of system, allows the coil electricity of relay J 2, even if with the normally opened contact 1-2 of relay J 2
Guan Bi, the normally opened contact 3-4 of relay J 2 close, the normally opened contact 5-6 of relay J 2 closes,
The normally opened contact 7-8 Guan Bi of relay J 2 and the normally opened contact 9-10 Guan Bi of relay J 2；Work as relay
During the coil electricity of device J3, the excitation black starting-up mode command connecting excitation system starts module, will encourage
Magnetic system is adjusted to excitation black starting-up mode command mode；
(3-3) when excitation system has excitation run signal, monitoring system orders to close switch K6, continues
The coil electricity of electrical equipment J6, thus the excitation black starting-up connecting excitation system puts into order startup module,
Excitation system is adjusted to excitation black starting-up and puts into command mode, and make the normally opened contact 1-2 of relay J 6
Guan Bi；
(3-4) then, monitoring system sends excitation to the switch K1 of excitation system and puts into order, opens
Closing K1 Guan Bi, the coil electricity of relay J 1, the contact 1-2 of relay J 1 closes and relay immediately
The contact 3-4 Guan Bi of device J1；After the contact 1-2 of relay J 1 closes, the excitation of excitation system
The energising of alternating-current switch closing coil allows the excitation alternating-current switch of excitation system close；
(3-5) after the contact 3-4 of relay J 1 closes, the degaussing switch closing line of excitation system
Circle energising allows the degaussing switch of excitation system close；
(3-6) then, monitoring system is ordered to close hydrogenerator switch；
(3-7) it is more than the set end voltage rated value of hydrogenerator when the set end voltage of hydrogenerator
60% and less than hydrogenerator set end voltage rated value 90% time, monitoring system order Guan Bi switch
K4, the coil electricity of relay J 4, thus the excitation manual electric current regulative mode connecting excitation system opens
Dynamic model block, is adjusted to excitation manual electric current regulative mode by excitation system；
(3-8) it is less than the set end voltage rated value of hydrogenerator when the set end voltage of hydrogenerator
When 60%, monitoring system orders to close switch K5, the coil electricity of relay J 5, and exciting current starts
Value arranges module and starts, and the exciting current of excitation system is set to exciting current initiation value, this excitation electricity
Stream initiation value is B times of the rated exciting current value of excitation system, and 0 ＜ B ＜ 1；
(3-9) when allowing excitation alternating-current switch close, allowing degaussing switch close and to allow hydrogenerator switch
After Guan Bi, allow the normally opened contact 1-2 of relay J 6 close simultaneously, will make excitation catalyst C2 and
Relay J 7 action；When, after the coil electricity of excitation catalyst C2, connecting excitation contact modules,
Electric station DC power supply by water energy generator is connected to the rotor of hydrogenerator；
(3-10), after relay J 7 action, the alternating current sent by hydrogenerator puts into rectifier bridge；
(3-11) then, through direct current excitation, the exciting current of excitation system is first risen to automatically
The exciting current initiation value pre-set；
(3-12) then, the excitation local control in excitation system the most manually increases magnetic, is sent out by water wheels
The set end voltage of motor rises to the set end voltage rated value of hydrogenerator；
(3-13) the set end voltage circuit of hydrogenerator is charged, when the machine of hydrogenerator
After terminal voltage is more than the 98% of the set end voltage rated value of hydrogenerator, monitoring system orders to switch K2
Guan Bi so that relay J 8 action, the normally-closed contact 1-2 of relay J 8 action relief relay J 8
Disconnecting, by the excitation black starting-up pattern involution of excitation system, thus the excitation terminating hydrogenerator is black
Start control process.
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| CN113113937A (en) * | 2021-04-06 | 2021-07-13 | 四川华能涪江水电有限责任公司 | Excitation system of hydropower station black start unit and grid-connected signal input and removal method |
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| CN106026811B (en) | 2018-06-26 |
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