CN213637092U - Performance index early warning device of automatic power generation control system of grid-connected thermal power generating unit - Google Patents
Performance index early warning device of automatic power generation control system of grid-connected thermal power generating unit Download PDFInfo
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- CN213637092U CN213637092U CN202021580465.6U CN202021580465U CN213637092U CN 213637092 U CN213637092 U CN 213637092U CN 202021580465 U CN202021580465 U CN 202021580465U CN 213637092 U CN213637092 U CN 213637092U
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Abstract
The utility model provides a grid-connected thermal power generating unit automatic generation control system (AGC) performance index early warning device, which comprises a unit simulation system, an automatic generation control system simulation system, a comparison system and an alarm device; the simulation modeling method comprises the steps of outputting simulation signals of all units to an automatic power generation control system at the same time in a simulation modeling mode, configuring an automatic power generation control system simulation system with the same ideal processing logic as the automatic power generation control system in the modeling mode, receiving power control instructions and correction power control instructions returned by the automatic power generation control system and the automatic power generation control system simulation system, respectively comparing the input threshold values, and giving an alarm by an alarm device when one or more instructions exceed the threshold values. The early warning method has the beneficial effects of simple early warning process and strong early warning effect.
Description
Technical Field
The utility model relates to an automatic power generation control system technical field of electric power system especially relates to a thermal power generating set automatic generation control system (AGC) performance index early warning device is incorporated into power networks.
Background
And an automatic power generation control system AGC of the grid-connected thermal power generating unit is used for adjusting the active power of the whole power station and participating in the frequency adjustment of a power grid. The control effect of the automatic power generation control system is directly related to the frequency stability of the power grid, so that the performance index of the automatic power generation control system needs to be regularly detected and early warned.
At present, the prior art does not provide an early warning device for the performance index of an automatic generation control system (AGC) of a grid-connected thermal power generating unit, so that the AGC of the automatic generation control system has hidden use danger.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the prior art, a performance index early warning device of an automatic power generation control system of a grid-connected thermal power generating unit is provided, analog signals of all units are output to the automatic power generation control system at the same time in a simulation modeling mode, an automatic power generation control system simulation system with the same ideal processing logic as the automatic power generation control system is configured in the modeling mode, power control instructions and correction power control instructions transmitted back by the automatic power generation control system and the automatic power generation control system simulation system are received and are respectively compared with threshold values, and when one or more instructions exceed the threshold values, the warning device gives an alarm. The method has the technical effects of simple early warning process and strong early warning effect.
In order to achieve the above technical effects, the utility model discloses the concrete technical scheme who adopts is:
the early warning device for the performance indexes of the automatic power generation control system of the grid-connected thermal power generating unit comprises a unit simulation system, an automatic power generation control system simulation system, a comparison system and a warning device;
the unit simulation system comprises a voltage data, a current data and a circuit breaking signal which are used for modeling and generating each unit of the grid-connected thermal power generating unit, and the voltage data, the current data and the circuit breaking signal are input into an automatic power generation control system and the automatic power generation control system simulation system;
the automatic power generation control system is used for generating a simulated power control instruction for each unit according to the voltage data, the current data and the circuit breaking signal and sending the simulated power control instruction to the comparison system;
the automatic power generation control system simulation system is used for generating a corrected power control instruction for each unit through the voltage data, the current data and the circuit breaking signal based on ideal processing logic of the automatic power generation control system and sending the corrected power control instruction to the comparison system;
the comparison system is provided with a threshold value, and when the difference value of at least one analog power control instruction and the correction power control instruction of each unit exceeds the threshold value, an alarm signal is output to the alarm device;
the alarm device is used for outputting visual alarm signals.
Further, the voltage data, the current data and the open circuit signal are voltage amplitude signals.
Furthermore, the unit simulation system, the automatic power generation control system simulation system and the comparison system are arranged in the same digital simulator.
Further, the alarm device is a display, and the display is used for outputting the voltage data, the current data, the circuit breaking signal, the analog power control command, the correction power control command, the threshold value and the alarm signal.
Furthermore, the performance index early warning device further comprises a flashing light, and the flashing light is excited by the alarm signal.
Furthermore, the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit also comprises a data and signal acquisition system; the data and signal acquisition system is used for acquiring voltage data, current data and circuit breaker signals of each unit generated based on the operation of the current unit simulation system.
Furthermore, the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit also comprises a data and signal sending system; and the data and signal sending system is used for sending the voltage data, the current data and the breaker signal to the automatic power generation control system and the automatic power generation control system simulation system.
Furthermore, the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit also comprises an instruction receiving system; the instruction receiving system is used for receiving the power control instruction and the correction power control instruction.
Further, the data and signal acquisition system, the data and signal sending system and the instruction receiving system are arranged in the digital simulator.
Further, the digital simulator comprises a memory and a processor; the memory is used for storing a computer program, and the processor is used for completing data operation and signal generation based on the computer program.
Adopt above-mentioned technical scheme, the utility model discloses following beneficial effect has:
1) the utility model discloses a mode of simulation modeling gives the analog signal of each unit of automatic power generation control system output simultaneously to dispose one through the mode of modeling and handle the same automatic power generation control system simulation system of logic with automatic power generation control system's ideal, receive each power control instruction and the correction power control instruction that automatic power generation control system and automatic power generation control system simulation system passed back, bring into the threshold value and compare respectively, when single or above instruction surpassed the threshold value, alarm device reported to the police. The early warning method has the beneficial technical effects of simple early warning process and strong early warning effect.
2) The voltage data, the current data and the circuit breaking signal are transmitted in a voltage amplitude mode, so that the programming and the specific implementation of the computer logic chip are facilitated.
3) The modeling of the group simulation system, the automatic generation control system simulation system and the comparison system is realized by adopting a digital simulator programming mode, so that the manufacturing and running cost of the automatic generation control system (AGC) performance index early warning device of the grid-connected thermal power generating unit can be reduced; and the digital simulator is adopted for programming, and no hardware is arranged except the digital simulator, so that the influence of the running environment and the equipment aging is avoided, the probability of errors occurring during running is very small, and the early warning is more effective.
4) The display is adopted as an alarm device, the voltage data, the current data, the circuit breaking signal, the analog power control command, the correction power control command, the threshold value and the alarm signal are output, monitoring and alarm can be realized at any time, the range exceeding the threshold value can be displayed, the data of performance deviation at the position can be visually observed can be displayed one by one, and technicians can be helped to analyze error points of the automatic power generation control system of the grid-connected thermal power generating unit.
5) The adoption of the flashing lamp can more violently remind technicians of performance errors of the automatic power generation control system of the grid-connected thermal power generating unit.
6) The data and signal acquisition system, the data and signal sending system and the instruction receiving system are arranged in a modularized mode, and timely modification and correction are facilitated when errors occur in a combined program.
7) The utility model discloses can adopt any electronic equipment that has memory and treater to go up the operation, be applicable to multiple operating system, homoenergetic moves on removing or non-mobile electronic equipment, has very strong operating mode suitability.
Drawings
FIG. 1 is a block diagram of the present invention;
wherein: 1. a unit simulation system; 2. an automatic power generation control system; 3. an automatic power generation control system simulation system; 4. a comparison system; 5. an alarm device; 6. a data and signal acquisition system; 7. a data and signal transmission system; 8. an instruction receiving system; 9. and (6) flashing a lamp.
Detailed Description
The present invention will now be described in detail with reference to the drawings attached hereto.
In one embodiment, a performance index early warning device of an automatic power generation control system 2 of a grid-connected thermal power generating unit is provided, and comprises a unit simulation system 1, an automatic power generation control system simulation system 3, a comparison system 4 and an alarm device 5;
the unit simulation system 1 is used for modeling and generating voltage data, current data and a circuit breaking signal of each unit of the grid-connected thermal power generating unit, and inputting the voltage data, the current data and the circuit breaking signal into an automatic power generation control system 2 and an automatic power generation control system simulation system 3;
the automatic power generation control system 2 is used for generating an analog power control instruction for each unit according to the voltage data, the current data and the circuit breaking signal and sending the analog power control instruction to the comparison system 4;
the automatic power generation control system simulation system 3 is used for generating a corrected power control instruction for each unit through the voltage data, the current data and the circuit breaking signal based on an ideal processing logic of the automatic power generation control system 2 and sending the corrected power control instruction to the comparison system 4;
the comparison system 4 is provided with a threshold value, and when the difference value between at least one analog power control instruction and the correction power control instruction of each unit exceeds the threshold value, an alarm signal is output to the alarm device 5;
the alarm device 5 is used for outputting visual alarm signals.
In the embodiment, analog signals of each unit are output to the automatic power generation control system 2 simultaneously in a mode of analog modeling, an automatic power generation control system simulation system 3 with the same ideal processing logic as the automatic power generation control system 2 is configured in the mode of modeling, each power control instruction and each correction power control instruction returned by the automatic power generation control system 2 and the automatic power generation control system simulation system 3 are received, the brought-in thresholds are respectively compared, and when one or more instructions exceed the thresholds, the alarm device 5 gives an alarm. The early warning method has the beneficial technical effects of simple early warning process and strong early warning effect.
In one embodiment, the voltage data, current data, and trip signal are voltage magnitude signals.
The embodiment adopts the voltage amplitude mode to transmit the voltage data, the current data and the open circuit signal, and is beneficial to programming and implementing the calculation logic chip.
In one embodiment, the unit simulation system 1, the automatic power generation control system simulation system 3 and the comparison system 4 are arranged in the same digital simulator.
In the embodiment, modeling of the group simulation system, the automatic generation control system simulation system 3 and the comparison system 4 is realized by adopting a digital simulator programming mode, so that the manufacturing and running costs of the automatic generation control system 2 (AGC) performance index early warning device of the grid-connected thermal power generating unit can be reduced; and the digital simulator is adopted for programming, and no hardware is arranged except the digital simulator, so that the influence of the running environment and the equipment aging is avoided, the probability of errors occurring during running is very small, and the early warning is more effective.
In one embodiment, the alarm device 5 is a display for outputting the voltage data, current data, trip signal, analog power control command, corrective power control command, threshold value and alarm signal.
The embodiment can realize monitoring at any time, alarm, display of the range exceeding the threshold value, display of data of performance deviation at the position where the data can be observed visually one by one, and help technicians to analyze error points of the automatic power generation control system 2 of the grid-connected thermal power generating unit.
In one embodiment, the performance indicator early warning device further comprises a flashing light 9, and the flashing light 9 is excited by the alarm signal. And a display is adopted as an alarm device 5, and the voltage data, the current data, the circuit breaking signal, the analog power control command, the correction power control command, the threshold value and the alarm signal are output.
In the embodiment, the flashing lamp 9 can be used for more violently reminding technicians of performance errors of the automatic power generation control system 2 of the grid-connected thermal power generating unit.
In one embodiment, the early warning device for the performance index of the grid-connected thermal power generating unit automatic power generation control system 2 further comprises a data and signal acquisition system 6; the data and signal acquisition system 6 is used for acquiring voltage data, current data and circuit breaker signals of each unit generated based on the operation of the current unit simulation system 1;
the performance index early warning device of the grid-connected thermal power generating unit automatic power generation control system 2 further comprises a data and signal sending system 7; the data and signal transmission system 7 is configured to transmit the voltage data, the current data, and the breaker signal to the automatic power generation control system 2 and the automatic power generation control system simulation system 3.
The performance index early warning device of the grid-connected thermal power generating unit automatic power generation control system 2 further comprises an instruction receiving system 8; the command receiving system 8 is configured to receive the power control command and the correction power control command.
The data and signal acquisition system 6, the data and signal transmission system 7 and the instruction receiving system 8 are arranged in a digital simulator.
The present embodiment adopts the modularized data and signal acquisition system 6, the data and signal transmission system 7 and the instruction receiving system 8, which is beneficial to timely modification and correction when an error occurs in a combined program.
In one embodiment, the digital emulator includes a memory and a processor; the memory is used for storing a computer program, and the processor is used for completing data operation and signal generation based on the computer program.
The embodiment can be operated on any electronic equipment with a memory and a processor, is suitable for various operating systems, can be operated on mobile or non-mobile electronic equipment, and has strong working condition applicability.
Claims (10)
1. The early warning device for the performance index of the automatic power generation control system of the grid-connected thermal power generating unit is characterized in that: the system comprises a unit simulation system, an automatic power generation control system simulation system, a comparison system and an alarm device;
the unit simulation system comprises a voltage data, a current data and a circuit breaking signal which are used for modeling and generating each unit of the grid-connected thermal power generating unit, and the voltage data, the current data and the circuit breaking signal are input into an automatic power generation control system and the automatic power generation control system simulation system;
the automatic power generation control system is used for generating a simulated power control instruction for each unit according to the voltage data, the current data and the circuit breaking signal and sending the simulated power control instruction to the comparison system;
the automatic power generation control system simulation system is used for generating a corrected power control instruction for each unit through the voltage data, the current data and the circuit breaking signal based on ideal processing logic of the automatic power generation control system and sending the corrected power control instruction to the comparison system;
the comparison system is provided with a threshold value, and when the difference value of at least one analog power control instruction and the correction power control instruction of each unit exceeds the threshold value, an alarm signal is output to the alarm device;
the alarm device is used for outputting visual alarm signals.
2. The early warning device for performance indexes of the automatic power generation control system of the grid-connected thermal power generating unit according to claim 1, characterized in that: the voltage data, current data and trip signal are voltage amplitude signals.
3. The early warning device for the performance index of the automatic power generation control system of the grid-connected thermal power generating unit according to claim 2, characterized in that: the unit simulation system, the automatic power generation control system simulation system and the comparison system are arranged in the same digital simulator.
4. The early warning device for performance indexes of the automatic power generation control system of the grid-connected thermal power generating unit according to claim 1, characterized in that: the alarm device is a display, and the display is used for outputting the voltage data, the current data, the circuit breaking signal, the analog power control command, the correction power control command, the threshold value and the alarm signal.
5. The early warning device for performance indexes of the automatic power generation control system of the grid-connected thermal power generating unit according to claim 1, characterized in that: the performance index early warning device also comprises a flashing light which is excited by the alarm signal.
6. The early warning device for performance indexes of the automatic power generation control system of the grid-connected thermal power generating unit according to claim 1, characterized in that: the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit further comprises a data and signal acquisition system; the data and signal acquisition system is used for acquiring voltage data, current data and circuit breaker signals of each unit generated based on the operation of the current unit simulation system.
7. The grid-connected thermal power generating unit automatic power generation control system performance index early warning device according to claim 6, characterized in that: the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit further comprises a data and signal sending system; and the data and signal sending system is used for sending the voltage data, the current data and the breaker signal to the automatic power generation control system and the automatic power generation control system simulation system.
8. The grid-connected thermal power generating unit automatic power generation control system performance index early warning device according to claim 7, characterized in that: the performance index early warning device of the automatic power generation control system of the grid-connected thermal power generating unit further comprises an instruction receiving system; the instruction receiving system is used for receiving the power control instruction and the correction power control instruction.
9. The grid-connected thermal power generating unit automatic power generation control system performance index early warning device according to claim 8, characterized in that: the data and signal acquisition system, the data and signal sending system and the instruction receiving system are arranged in the digital simulator.
10. The grid-connected thermal power generating unit automatic power generation control system performance index early warning device according to claim 3 or 9, characterized in that: the digital simulator comprises a memory and a processor; the memory is used for storing a computer program, and the processor is used for completing data operation and signal generation based on the computer program.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021580465.6U CN213637092U (en) | 2020-08-03 | 2020-08-03 | Performance index early warning device of automatic power generation control system of grid-connected thermal power generating unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021580465.6U CN213637092U (en) | 2020-08-03 | 2020-08-03 | Performance index early warning device of automatic power generation control system of grid-connected thermal power generating unit |
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| CN213637092U true CN213637092U (en) | 2021-07-06 |
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| CN202021580465.6U Active CN213637092U (en) | 2020-08-03 | 2020-08-03 | Performance index early warning device of automatic power generation control system of grid-connected thermal power generating unit |
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