CN117293999A - Factory electricity recovery control method and device based on diesel generator - Google Patents
Factory electricity recovery control method and device based on diesel generator Download PDFInfo
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- CN117293999A CN117293999A CN202311253069.0A CN202311253069A CN117293999A CN 117293999 A CN117293999 A CN 117293999A CN 202311253069 A CN202311253069 A CN 202311253069A CN 117293999 A CN117293999 A CN 117293999A
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- 238000011084 recovery Methods 0.000 title claims abstract description 41
- 230000005611 electricity Effects 0.000 title claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 167
- 241001672018 Cercomela melanura Species 0.000 claims abstract description 44
- 238000004590 computer program Methods 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 6
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J11/00—Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
Abstract
The application relates to a diesel generator-based factory electricity recovery control method, a diesel generator-based factory electricity recovery control device, a diesel generator-based factory electricity recovery control computer device, a diesel generator-based storage medium and a diesel generator-based factory electricity recovery control computer program product. The method comprises the following steps: obtaining a detection result of the hydropower station according to the first factory transformer and the second factory transformer of the hydropower station; under the condition that the detection result meets the black start condition, sequentially disconnecting a circuit of the first factory transformer, a circuit of the second factory transformer and a circuit of the factory I-section bus of the hydropower station; the circuit of the diesel generator and the circuit of the section I bus for factories are sequentially communicated; and starting the diesel generator to generate electricity until the hydropower station recovers the station power. By adopting the method, the time for recovering the station service electricity of the diesel generator can be shortened, and the recovery efficiency of the station service electricity of the hydropower station can be improved.
Description
Technical Field
The application relates to the technical field of hydropower station black start, in particular to a factory electricity recovery control method, device, computer equipment, storage medium and computer program product based on a diesel generator.
Background
When the hydropower station is in an accident, and the running machine unit is stopped and the alternating current is eliminated, the hydropower station needs to be quickly switched from a stopping state to a normal power generation state in a black start mode of the hydropower station. The black start recovery time of the hydropower station influences the flood control safety of the whole hydropower station dam and the recovery time of the power grid, and if the recovery time is too long, serious conditions such as collapse of the hydropower station dam or power grid accidents can be caused.
At present, the hydropower station mainly carries out station electricity recovery through the mode of manual switching, and because the manual switching operation steps are more, consuming time is longer, the station electricity recovery time of the hydropower station is longer, and the black start time of the hydropower station is overlong, and the power grid recovery efficiency is lower.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a diesel generator-based power plant restoration control method, apparatus, computer device, computer readable storage medium, and computer program product that can improve power plant restoration efficiency.
In a first aspect, the present application provides a plant power restoration control method for a diesel generator. The method comprises the following steps:
obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
under the condition that the detection result meets a black start condition, sequentially disconnecting the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station;
the circuit of the diesel generator and the circuit of the section I bus for the factory are sequentially communicated;
and starting the diesel generator to generate electricity until the hydropower station recovers station power.
In one embodiment, according to a first factory transformer and a second factory transformer of a hydropower station, obtaining a power loss detection result of the hydropower station includes:
carrying out power failure detection on the first factory transformer and the second factory transformer to obtain a power failure detection result of the first factory transformer and a detection result of the second factory transformer;
carrying out power failure detection on the section I bus and the section II bus to obtain a power failure detection result of the section I bus and a power failure detection result of the section II bus;
and obtaining the detection result according to the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus.
In one embodiment, the step of performing power loss detection on the first factory transformer and the second factory transformer to obtain a power loss detection result of the first factory transformer and a detection result of the second factory transformer includes:
and carrying out power failure detection on a first voltage transformer connected with the first factory transformer and a second voltage transformer connected with the second factory transformer to obtain a power failure detection result of the first voltage transformer and a power failure detection result of the second voltage transformer.
In one embodiment, the power loss detection of the section I bus and the section II bus for the plant is performed to obtain a power loss detection result of the section I bus for the plant and a power loss detection result of the section II bus for the plant, including:
and carrying out power failure detection on a third voltage transformer connected with the section I bus for the factory and a fourth voltage transformer connected with the section II bus for the factory to obtain power failure detection results of the section I bus for the factory and the section II bus for the factory.
In one embodiment, when the detection result meets a black start condition, the circuit of the first factory transformer, the circuit of the second factory transformer, and the circuit of the factory I-section bus are sequentially turned off, including:
when the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus are all power failure, confirming that the detection results meet a black start condition;
and sequentially performing opening operations on a first circuit breaker connected with the first factory transformer, a second circuit breaker connected with the second factory transformer and a third circuit breaker connected with the factory I-section bus.
In one embodiment, the circuit of the diesel generator and the circuit of the factory I-section bus are sequentially communicated, and the circuit comprises:
switching on a fourth circuit breaker connected with the diesel generator;
and switching on a third circuit breaker connected with the section I bus for the factory.
In a second aspect, the application also provides a factory electricity recovery control device of the diesel generator. The device comprises:
the power station detection module is used for obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
the circuit breaking module is used for breaking the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station in sequence under the condition that the detection result meets the black start condition;
the circuit communication module is used for sequentially communicating a circuit of the diesel generator and a circuit of the factory I-section bus;
and the motor power generation module is used for starting the diesel generator to generate power until the hydropower station recovers station power.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor which when executing the computer program performs the steps of:
obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
under the condition that the detection result meets a black start condition, sequentially disconnecting the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station;
the circuit of the diesel generator and the circuit of the section I bus for the factory are sequentially communicated;
and starting the diesel generator to generate electricity until the hydropower station recovers station power.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
under the condition that the detection result meets a black start condition, sequentially disconnecting the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station;
the circuit of the diesel generator and the circuit of the section I bus for the factory are sequentially communicated;
and starting the diesel generator to generate electricity until the hydropower station recovers station power.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of:
obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
under the condition that the detection result meets a black start condition, sequentially disconnecting the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station;
the circuit of the diesel generator and the circuit of the section I bus for the factory are sequentially communicated;
and starting the diesel generator to generate electricity until the hydropower station recovers station power.
According to the plant power recovery control method, the plant power recovery control device, the computer equipment, the storage medium and the computer program product of the diesel generator, the detection result of the hydropower station is obtained according to the first plant transformer and the second plant transformer of the hydropower station; under the condition that the detection result meets the black start condition, sequentially disconnecting a circuit of the first factory transformer, a circuit of the second factory transformer and a circuit of the factory I-section bus of the hydropower station; the circuit of the diesel generator and the circuit of the section I bus for factories are sequentially communicated; and starting the diesel generator to generate electricity until the hydropower station recovers the station power. By adopting the method, whether the black start is started or not is determined by detecting the power supply equipment related to the hydropower station, and then the power supply of the diesel generator is automatically started under the condition that the station power of the hydropower station disappears by controlling the connection or disconnection of the circuits of the station transformer, the bus and the diesel generator, so that the time for recovering the station power of the diesel generator is effectively shortened, the recovery efficiency of the station power of the hydropower station is improved, and the black start efficiency of the hydropower station is improved.
Drawings
FIG. 1 is a flow chart of a method of plant power restoration control of a diesel generator in one embodiment;
FIG. 2 is a schematic circuit diagram of a diesel generator based factory electricity recovery control in one embodiment;
FIG. 3 is a schematic flow chart of the steps for obtaining the detection result of the hydropower station according to the first and second transformers of the hydropower station in one embodiment;
FIG. 4 is a flow chart of a plant power restoration control method of a diesel generator in another embodiment;
FIG. 5 is a block diagram of a plant power restoration control device for a diesel generator in one embodiment;
fig. 6 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It should be noted that, the user information (including, but not limited to, user equipment information, user personal information, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use, and processing of the related data are required to meet the related regulations.
In one embodiment, as shown in fig. 1, a method for recovering and controlling plant power of a diesel generator is provided, and the embodiment is applied to a terminal for illustration by using the method, it can be understood that the method can also be applied to a server, and can also be applied to a system comprising the terminal and the server, and is realized through interaction of the terminal and the server. In this embodiment, the method includes the steps of:
step S101, obtaining a detection result of the hydropower station according to the first factory transformer and the second factory transformer of the hydropower station.
Fig. 2 is a schematic circuit diagram of a factory power restoration control based on a diesel generator, and as shown in fig. 2, the factory power restoration control circuit includes two factory transformers (i.e., a first factory transformer #1, a second factory transformer # 2), a factory I-section bus, a factory II-section bus, a diesel generator F, four voltage transformers (i.e., a first voltage transformer PT3, a second voltage transformer PT4, a third voltage transformer PT1 and a fourth voltage transformer PT 2), and four circuit breakers (i.e., a first circuit breaker 401, a second circuit breaker 402, a third circuit breaker 403 and a fourth circuit breaker 404).
Specifically, the first factory transformer and the second factory transformer refer to equipment for supplying power in a hydropower station, and are equivalent to a power supply of the hydropower station. Therefore, the terminal can respectively perform black start detection on the first factory transformer and the second factory transformer so as to determine the detection result of the hydropower station for black start. The detection result is used for indicating whether the hydropower station needs to start the diesel generator to supply power.
Step S102, when the detection result meets the black start condition, the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station are sequentially disconnected.
The section I bus for the plant can be the section I bus for the 0.4KV plant shown in figure 2.
Specifically, when the circuits of the first factory transformer and the second factory transformer are detected to be in power failure, it can be determined that the detection result of the hydropower station meets the preset black start condition. At this time, the terminal can firstly call the instruction 1 to disconnect the circuit of the first factory transformer, then call the instruction 2 to disconnect the circuit of the second factory transformer, and finally call the instruction 2 to disconnect the circuit of the factory I-section bus of the hydropower station, so as to ensure that the circuits of the original power supply system of the hydropower station are all disconnected, and avoid short circuit caused by a plurality of power supplies after the diesel generator is started to supply power.
Step S103, a circuit of the diesel generator and a circuit of the factory I section bus are sequentially communicated.
Specifically, after determining that all circuits of an original power supply system of the hydropower station are disconnected, the terminal can call the circuit of the diesel generator connected with the instruction 4, and then call the circuit of the section I bus for the factory connected with the instruction 5, so that all the power supply circuits of the diesel generator are connected.
And step S104, starting the diesel generator to generate electricity until the hydropower station recovers station power.
Specifically, after the power supply circuit of the diesel generator is communicated, a starting signal is sent to the diesel generator to control the diesel generator to start to generate electricity, and when the station power of the hydropower station is recovered, the diesel generator automatically stops supplying power, so that the automatic control of the station power recovery of the hydropower station is realized.
It can be understood that the hydropower station black start comprises the links of station power disappearance, accident check, station power restoration, check before starting and power generation success. The factory electricity recovery control is one of important links in the black start of the hydropower station, is also one link with the largest time length accounting for the whole black start time of the hydropower station, and has important application significance for the normal operation of a power grid by shortening the factory electricity recovery time.
In the plant power recovery control method of the diesel generator, the detection result of the hydropower station is obtained according to the first plant transformer and the second plant transformer of the hydropower station; under the condition that the detection result meets the black start condition, sequentially disconnecting a circuit of the first factory transformer, a circuit of the second factory transformer and a circuit of the factory I-section bus of the hydropower station; the circuit of the diesel generator and the circuit of the section I bus for factories are sequentially communicated; and starting the diesel generator to generate electricity until the hydropower station recovers the station power. By adopting the method, whether the black start is started or not is determined by detecting the power supply equipment related to the hydropower station, and then the power supply of the diesel generator is automatically started under the condition that the station power of the hydropower station disappears by controlling the connection or disconnection of the circuits of the station transformer, the bus and the diesel generator, so that the time for recovering the station power of the diesel generator is effectively shortened, the recovery efficiency of the station power of the hydropower station is improved, and the black start efficiency of the hydropower station is improved.
In one embodiment, as shown in fig. 3, in step S101, a detection result of the hydropower station is obtained according to a first factory transformer and a second factory transformer of the hydropower station, and specifically includes the following steps:
step S301, performing power loss detection on the first and second transformers to obtain a power loss detection result of the first and second transformers.
The power-down detection refers to detecting whether the equipment is in a power-down state.
And step S302, carrying out power failure detection on the section I bus and the section II bus for the factory to obtain a power failure detection result of the section I bus for the factory and a power failure detection result of the section II bus for the factory.
The section II bus for the plant may be the section II bus for the plant of 0.4KV shown in fig. 2.
Specifically, in order to improve the reliability of the detection of the hydropower plant for black start, the terminal can perform power-down detection on the first plant transformer and the second plant transformer respectively, and also perform power-down detection on the plant I-section bus and the plant II-section bus respectively so as to confirm whether the two power supplies of the first plant transformer and the second plant transformer are in a power-down state at present and confirm whether the two buses of the plant I-section bus and the plant II-section bus of the hydropower plant are also in a power-down state.
And step S303, obtaining detection results according to the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus.
Specifically, the terminal synthesizes the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus to obtain the detection result of the hydropower factory aiming at black start.
In this embodiment, through performing power loss detection on the first factory transformer and the second factory transformer, and the factory I-section bus and the factory II-section bus of the hydropower station, accurate acquisition of power loss detection results of the first factory transformer, the second factory transformer, the factory I-section bus and the factory II-section bus is achieved, so that whether the hydropower station meets the black start condition or not can be determined according to the four power loss detection results in the subsequent steps, and factory electricity of the hydropower station is automatically controlled to complete recovery operation.
In one embodiment, the step S301 performs power loss detection on the first and second transformers to obtain a power loss detection result of the first and second transformers, and specifically includes the following steps: and carrying out power failure detection on a first voltage transformer connected with the first factory transformer and a second voltage transformer connected with the second factory transformer to obtain a power failure detection result of the first voltage transformer and a power failure detection result of the second voltage transformer.
Specifically, as shown in fig. 2, the first and second transformers for the factory are further connected with the first and second voltage transformers, respectively, and the terminal may determine whether the power loss detection result of the first transformer for the factory is power loss by detecting whether the first voltage transformer PT3 connected with the first transformer for the factory is power loss or not according to the power loss detection result of the first voltage transformer. Similarly, the terminal can also determine whether the power failure detection result of the second factory transformer is power failure by detecting whether the second voltage transformer PT4 connected with the second factory transformer is power failure or not and then according to the power failure detection result of the second voltage transformer. For example, if the power loss detection result of the first voltage transformer is power loss, it can be confirmed that the power loss detection result of the first factory transformer is also power loss; if the power failure detection result of the second voltage transformer is power failure, the power failure detection result of the second factory transformer can be confirmed to be power failure.
In this embodiment, through carrying out the power failure detection to the first voltage transformer that is connected with first factory transformer and the second voltage transformer that is connected with second factory transformer, the accuracy that has realized the power failure detection result of first voltage transformer and second voltage transformer obtains, and then can confirm the power failure detection result of first factory transformer and second factory transformer, through detecting voltage transformer, can obtain the power failure detection result of factory transformer more fast, accurately, compare in direct detection factory transformer, voltage transformer is more convenient for measure and measurement accuracy is higher, still need not operating personnel and carry out manual detection, hydropower station factory's power consumption's recovery efficiency has been improved.
In one embodiment, the step S302 is performed to detect the power loss of the section I bus and the section II bus, so as to obtain a power loss detection result of the section I bus and a power loss detection result of the section II bus, and specifically includes the following contents: and carrying out power failure detection on a third voltage transformer connected with the section I bus for the factory and a fourth voltage transformer connected with the section II bus for the factory to obtain power failure detection results of the section I bus for the factory and the section II bus for the factory.
Specifically, as shown in fig. 2, the terminal may detect whether the third voltage transformer PT1 connected to the section I bus is powered down, and further determine whether the section I bus is powered down according to the power-down detection result of the third voltage transformer PT 1. Similarly, the terminal can also determine whether the power failure detection result of the section II bus for the factory is power failure by detecting whether the power failure detection result of the fourth voltage transformer PT2 connected with the section II bus for the factory is power failure or not according to the power failure detection result of the fourth voltage transformer PT 2. For example, if the power loss detection result of the third voltage transformer PT1 is power loss, it can be confirmed that the power loss detection result of the section I bus for the factory is also power loss; if the power loss detection result of the fourth voltage transformer PT2 is power loss, the power loss detection result of the section II bus for the factory can be confirmed to be power loss.
In this embodiment, through carrying out the power failure detection to the third voltage transformer that is connected with the I section bus of mill and the fourth voltage transformer that is connected with the II section bus of mill, the accurate acquisition of the power failure detection result of third voltage transformer and fourth voltage transformer has been realized, and then can confirm the power failure detection result of I section bus of leaving the factory and II section bus of mill, through the automated inspection of voltage transformer, the power failure detection result of factory's bus is obtained fast, accurately, compare in direct detection bus, the voltage transformer is more convenient for measure and measurement accuracy is higher, still need not operating personnel and carry out manual detection, power station factory's power consumption's recovery efficiency has been improved.
In one embodiment, the step S102, when the detection result meets the black start condition, turns off the circuit of the first factory transformer, the circuit of the second factory transformer, and the circuit of the factory I-section bus of the hydropower station in sequence, specifically includes the following contents: under the condition that the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus are all power failure, the detection results are confirmed to meet the black start condition; the first breaker connected with the first factory transformer, the second breaker connected with the second factory transformer and the third breaker connected with the factory I section bus are sequentially disconnected.
Specifically, when the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus are all detected to be power failure, or when the power failure detection results of the first voltage transformer, the second voltage transformer, the third voltage transformer and the fourth voltage transformer are all detected to be power failure, the terminal can confirm that the detection results of the hydropower station meet the black start condition; then calling an instruction 1 to disconnect a first circuit breaker connected with a first factory transformer, and detecting whether the first circuit breaker is in an open position; after confirming that the first circuit breaker is at the opening position, calling an instruction 2 to open a second circuit breaker connected with a second factory transformer, and detecting whether the second circuit breaker is at the opening position; after confirming that the second circuit breaker is at the opening position, calling an instruction 3 to open a third circuit breaker connected with the section I bus of the factory, and detecting whether the third circuit breaker is at the opening position. After confirming that the third circuit breaker is in the open position, the instruction 4 is recalled to execute the above step S103.
Further, when at least one of the power loss detection results of the first factory transformer, the second factory transformer, the factory I-section bus and the factory II-section bus is detected to be not power loss, the terminal can confirm that the detection result of the hydropower station does not meet the black start condition, and the diesel generator is not required to be started for power supply.
In this embodiment, when it is determined that both the power supply (i.e., the first factory transformer and the second factory transformer) and the bus (i.e., the factory I-section bus and the factory II-section bus) of the hydropower station are powered off, it is determined that the hydropower station has satisfied the black start condition; the terminal is disconnected with the circuit breaker connected with the original power supply, and the third circuit breaker connected with the section I bus of the factory is disconnected in order to prevent short circuit generated when other power supplies meet the power supply of the diesel generator, so that the power supply safety of the diesel generator is ensured, and the safety and reliability of the recovery of the factory power are improved when the original power supply circuit is completely disconnected.
In one embodiment, the step S103 connects the circuit of the diesel generator and the circuit of the section I bus for factory in sequence, specifically including the following: performing switching-on operation on a fourth circuit breaker connected with the diesel generator; and switching on a third circuit breaker connected with the section I bus for the factory.
Specifically, after confirming that the third circuit breaker is at the open position, the terminal call command 4 closes a fourth circuit breaker connected with the diesel generator to connect the circuit of the diesel generator; it is detected whether the fourth circuit breaker is indeed in the closing position. After confirming that the fourth circuit breaker is at a closing position, calling an instruction 5 to close a third circuit breaker connected with the section I bus for the factory so as to communicate a circuit of the section I bus for the factory; it is detected whether the third circuit breaker is indeed in the closing position. After confirming that the third circuit breaker is at the closing position, the above step S104 is executed again.
In the embodiment, after the fact that the original power supply circuit is completely disconnected is confirmed, a fourth circuit breaker connected with the diesel generator is switched on, and then a third circuit breaker connected with the section I bus of the factory is switched on, so that the power supply circuit of the diesel generator is communicated, the follow-up diesel generator transmits power to the section II bus of the factory through the fourth circuit breaker, and further transmits the power to the section I bus of the factory through the third circuit breaker, and recovery of the power of the factory is achieved.
In one embodiment, as shown in fig. 4, another plant power restoration control method of a diesel generator is provided, and the method is applied to a terminal for illustration, and includes the following steps:
and step S401, carrying out power failure detection on the first factory transformer and the second factory transformer to obtain a power failure detection result of the first factory transformer and a detection result of the second factory transformer.
And step S402, carrying out power failure detection on the section I bus and the section II bus for the factory to obtain a power failure detection result of the section I bus for the factory and a power failure detection result of the section II bus for the factory.
And step S403, obtaining detection results according to the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus.
In step S404, when the power failure detection results of the first factory transformer, the second factory transformer, the factory I-section bus and the factory II-section bus are all power failure, it is determined that the detection results satisfy the black start condition.
Step S405 sequentially performs an opening operation on a first breaker connected to the first factory transformer, a second breaker connected to the second factory transformer, and a third breaker connected to the factory I-section bus.
Step S406, performing a closing operation on a fourth circuit breaker connected to the diesel generator.
And S407, performing switching-on operation on a third circuit breaker connected with the section I bus for the factory.
And step S408, starting the diesel generator to generate electricity until the hydropower station recovers station power.
The plant power recovery control method of the diesel generator can realize the following beneficial effects: whether the black start is started or not is determined by detecting power supply equipment related to the hydropower station, and then the power supply is automatically started by controlling the connection or disconnection of circuits of the transformer, the bus and the diesel generator under the condition that the station power of the hydropower station disappears, so that the power supply of the diesel generator is not needed to be manually checked and operated, the time for recovering the station power of the diesel generator is effectively shortened, the recovery efficiency of the station power of the hydropower station is improved, and the black start efficiency of the hydropower station is improved.
In order to more clearly illustrate the service electricity recovery control method of the diesel generator provided by the embodiment of the present disclosure, a specific embodiment is used to specifically describe the service electricity recovery control method of the diesel generator. The utility power recovery control method of the diesel generator can be applied to the terminal and specifically comprises the following steps:
1) Detecting that the first voltage transformer PT3, the second voltage transformer PT4, the third voltage transformer PT1 and the fourth voltage transformer PT2 are all in a power-off state, and sequentially executing the steps 2) to 7);
2) Instruction 1: opening the first circuit breaker 401, detecting that the first circuit breaker 401 is indeed in the open position;
3) Instruction 2: opening the second circuit breaker 402, detecting that the second circuit breaker 402 is indeed in an open position;
4) Instruction 3: opening the third circuit breaker 403, detecting that the third circuit breaker 403 is indeed in the open position;
5) Instruction 4: closing the fourth circuit breaker 404, and detecting that the fourth circuit breaker 404 is at a closing position;
6) Instruction 5: closing the third circuit breaker 403, and detecting that the third circuit breaker 403 is at a closing position;
7) And starting the diesel engine to supply power.
In the embodiment, the detection of the black start condition of the hydropower station is realized only through four voltage transformers, and the communication of the diesel generator circuit is completed through four circuit breakers, so that the number of control equipment and control program steps required by the power plant recovery control of the hydropower station are greatly reduced, the time for recovering the power plant by using the diesel generator is effectively shortened, the recovery efficiency of the power plant is improved, and the black start efficiency of the hydropower station is further improved.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a diesel generator-based station service electricity recovery control device for realizing the diesel generator-based station service electricity recovery control method. The implementation scheme of the device for solving the problem is similar to that described in the above method, so the specific limitation in the embodiments of the plant power restoration control device based on the diesel generator provided below may refer to the limitation of the plant power restoration control method based on the diesel generator, which is not described herein.
In one embodiment, as shown in fig. 5, there is provided a plant power restoration control device 500 based on a diesel generator, including: a power station detection module 501, a circuit breaking module 502, a circuit communicating module 503, and a motor power generation module 504, wherein:
the power station detection module 501 is configured to obtain a detection result of the hydropower station according to the first factory transformer and the second factory transformer of the hydropower station.
The circuit breaking module 502 is configured to break the circuit of the first factory transformer and the circuit of the second factory transformer, and the circuit of the factory I-section bus of the hydropower station in sequence when the detection result meets the black start condition.
The circuit communication module 503 is used for sequentially communicating the circuit of the diesel generator and the circuit of the factory I-section bus.
And the motor power generation module 504 is used for starting the diesel generator to generate power until the hydropower station recovers station power.
In one embodiment, the power station detection module 501 is further configured to perform power loss detection on the first factory transformer and the second factory transformer, so as to obtain a power loss detection result of the first factory transformer and a detection result of the second factory transformer; carrying out power failure detection on the section I bus and the section II bus for the factory to obtain a power failure detection result of the section I bus and a power failure detection result of the section II bus for the factory; and obtaining detection results according to the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus.
In one embodiment, the factory electricity recovery control device 500 based on the diesel generator further includes a first detection module, configured to perform power failure detection on a first voltage transformer connected to the first factory transformer and a second voltage transformer connected to the second factory transformer, so as to obtain a power failure detection result of the first voltage transformer and a power failure detection result of the second voltage transformer.
In one embodiment, the plant power restoration control device 500 based on the diesel generator further includes a second detection module, configured to perform power loss detection on a third voltage transformer connected to the plant section I bus and a fourth voltage transformer connected to the plant section II bus, so as to obtain power loss detection results of the plant section I bus and the plant section II bus.
In one embodiment, the circuit breaking module 502 is further configured to confirm that the detection result meets the black start condition when the power loss detection results of the first factory transformer, the second factory transformer, the factory I-section bus and the factory II-section bus are all power loss; the first breaker connected with the first factory transformer, the second breaker connected with the second factory transformer and the third breaker connected with the factory I section bus are sequentially disconnected.
In one embodiment, the circuit communication module 503 is further configured to perform a closing operation on a fourth circuit breaker connected to the diesel generator; and switching on a third circuit breaker connected with the section I bus for the factory.
All or part of each module in the plant power restoration control device based on the diesel generator can be realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 6. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program, when executed by the processor, implements a diesel generator-based factory electricity recovery control method. The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. The utility power recovery control method based on the diesel generator is characterized by comprising the following steps:
obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
under the condition that the detection result meets a black start condition, sequentially disconnecting the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station;
the circuit of the diesel generator and the circuit of the section I bus for the factory are sequentially communicated;
and starting the diesel generator to generate electricity until the hydropower station recovers station power.
2. The method of claim 1, wherein the obtaining the power loss detection result of the hydropower station according to the first and second factory transformers of the hydropower station comprises:
carrying out power failure detection on the first factory transformer and the second factory transformer to obtain a power failure detection result of the first factory transformer and a detection result of the second factory transformer;
carrying out power failure detection on the section I bus and the section II bus to obtain a power failure detection result of the section I bus and a power failure detection result of the section II bus;
and obtaining the detection result according to the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus.
3. The method of claim 2, wherein the detecting the power loss of the first and second transformers for the first and second transformers comprises:
and carrying out power failure detection on a first voltage transformer connected with the first factory transformer and a second voltage transformer connected with the second factory transformer to obtain a power failure detection result of the first voltage transformer and a power failure detection result of the second voltage transformer.
4. The method according to claim 2, wherein the step of performing the power loss detection on the section I bus and the section II bus to obtain a power loss detection result of the section I bus and a power loss detection result of the section II bus comprises:
and carrying out power failure detection on a third voltage transformer connected with the section I bus for the factory and a fourth voltage transformer connected with the section II bus for the factory to obtain power failure detection results of the section I bus for the factory and the section II bus for the factory.
5. The method according to claim 2, wherein the sequentially turning off the circuit of the first factory transformer, the circuit of the second factory transformer, and the circuit of the factory I-section bus bar in the case where the detection result satisfies a black start condition, comprises:
when the power failure detection results of the first factory transformer, the second factory transformer, the factory I section bus and the factory II section bus are all power failure, confirming that the detection results meet a black start condition;
and sequentially performing opening operations on a first circuit breaker connected with the first factory transformer, a second circuit breaker connected with the second factory transformer and a third circuit breaker connected with the factory I-section bus.
6. The method of claim 1, wherein the circuit that communicates with the diesel generator and the circuit of the plant section I bus in sequence comprises:
switching on a fourth circuit breaker connected with the diesel generator;
and switching on a third circuit breaker connected with the section I bus for the factory.
7. A diesel generator-based plant power restoration control device, characterized in that the device comprises:
the power station detection module is used for obtaining a detection result of the hydropower station according to a first factory transformer and a second factory transformer of the hydropower station;
the circuit breaking module is used for breaking the circuit of the first factory transformer, the circuit of the second factory transformer and the circuit of the factory I-section bus of the hydropower station in sequence under the condition that the detection result meets the black start condition;
the circuit communication module is used for sequentially communicating a circuit of the diesel generator and a circuit of the factory I-section bus;
and the motor power generation module is used for starting the diesel generator to generate power until the hydropower station recovers station power.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311253069.0A CN117293999A (en) | 2023-09-25 | 2023-09-25 | Factory electricity recovery control method and device based on diesel generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311253069.0A CN117293999A (en) | 2023-09-25 | 2023-09-25 | Factory electricity recovery control method and device based on diesel generator |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203933152U (en) * | 2014-01-26 | 2014-11-05 | 上海恒锦动力科技有限公司 | Power plant's black startup diesel engine unit control system |
| CN112366680A (en) * | 2020-09-22 | 2021-02-12 | 桑河二级水电有限公司 | Self-recovery method for loss of power of whole plant of station service under weak power grid without external power supply |
| WO2021196406A1 (en) * | 2020-04-01 | 2021-10-07 | 广东安朴电力技术有限公司 | Power transmission system and power supply apparatus thereof |
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2023
- 2023-09-25 CN CN202311253069.0A patent/CN117293999A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203933152U (en) * | 2014-01-26 | 2014-11-05 | 上海恒锦动力科技有限公司 | Power plant's black startup diesel engine unit control system |
| WO2021196406A1 (en) * | 2020-04-01 | 2021-10-07 | 广东安朴电力技术有限公司 | Power transmission system and power supply apparatus thereof |
| CN112366680A (en) * | 2020-09-22 | 2021-02-12 | 桑河二级水电有限公司 | Self-recovery method for loss of power of whole plant of station service under weak power grid without external power supply |
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