CN111722047A - Debugging method of power station microcomputer monitoring protection system - Google Patents
Debugging method of power station microcomputer monitoring protection system Download PDFInfo
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- CN111722047A CN111722047A CN202010622672.1A CN202010622672A CN111722047A CN 111722047 A CN111722047 A CN 111722047A CN 202010622672 A CN202010622672 A CN 202010622672A CN 111722047 A CN111722047 A CN 111722047A
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- 230000004224 protection Effects 0.000 title claims abstract description 50
- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 80
- 230000006870 function Effects 0.000 claims abstract description 28
- 238000007639 printing Methods 0.000 claims abstract description 12
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims abstract description 10
- 230000009131 signaling function Effects 0.000 claims abstract description 5
- 238000004146 energy storage Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000002847 impedance measurement Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000012806 monitoring device Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/55—Testing for incorrect line connections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a debugging method of a power station microcomputer monitoring and protecting system, which belongs to the technical field of power equipment and comprises the following steps: debugging a power circuit, checking whether power supply insurance or switches such as a direct current screen control output power supply, an energy storage power supply, a switching-on power supply and the like are closed, closing a power switch and a control circuit switch of the device, manually switching on and off the circuit breakers one by one, and checking the control circuit. The debugging method of the power station microcomputer monitoring and protecting system can achieve full and comprehensive debugging of various functions of the microcomputer protection and monitoring device through debugging of a power supply loop, reflection of switch states on a background machine, checking of fixed values and action signals of equipment such as a transformer and the like, debugging of a static test function of the system protecting machine, debugging of a synchronous test of a generator and debugging of a printing function and a remote signaling function, improves the reliability, accuracy, operation efficiency and instantaneity of field monitoring, and therefore can guarantee the safety and effectiveness of operation of a power station system.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to a debugging method of a power station microcomputer monitoring and protecting system.
Background
With the progress of computer technology, microcomputer is the development direction of automatic control systems of power stations in China, a microcomputer protection monitoring device is an economical protection monitoring device for integration of measurement, control, protection and communication, a power station microcomputer protection monitoring device is a power station field monitoring system with high automation degree, the power station microcomputer protection monitoring device needs to be fully debugged before being put into operation formally, but when the microcomputer protection monitoring device is debugged, some conventional checks (such as insulation, appearance and other simple tests) are usually carried out, so that more problems can be generated in the subsequent operation process, the debugging performance of the microcomputer protection monitoring device is poor, the optimal operation state is difficult to ensure, and the reliability and the real-time performance of monitoring are reduced.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, the invention provides a debugging method of a power station microcomputer monitoring and protecting system, which solves the problems that the existing microcomputer monitoring and protecting device has poor debugging effect, is difficult to ensure the optimal running state and reduces the reliability and the real-time performance of monitoring.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a debugging method of a power station microcomputer monitoring protection system comprises the following steps:
(1) debugging of a power supply loop: whether power supply insurance or switches such as a direct current screen control output power supply, an energy storage power supply and a switching-on power supply are closed is checked, a power supply switch and a control loop switch are closed, the circuit breakers are manually switched on and off one by one, the control loop is checked, whether the color of a circuit breaker position indicator lamp is correct or not is judged, whether the reaction is normal or not is judged, the control direct current power supply is immediately closed if the reaction is abnormal, and the reason is searched.
(2) Reflection of the switch state on the background machine: and (3) pulling the primary side circuit breaker and the isolating switch one by one, checking whether the event name and the time of the background machine are correct, electrifying, preheating for 5 minutes, adjusting zero drift, and disconnecting the electrical connection between the device and a tester or a standard source to ensure that no input exists on an alternating current terminal of the device.
(3) Checking the fixed value and the action signal of equipment such as a transformer: checking the correct condition of signal loops of gas, temperature, pressure and the like of a transformer body according to a schematic diagram or a wiring diagram, checking whether the name and time displayed on a background machine are correct, whether heavy gas signals and pressure signals should jump circuit breakers at each side of a main transformer and light gas and temperature high signals should be alarmed, checking whether the temperature of the transformer is correct displayed on the background machine, simulating various types of faults by using a microcomputer type relay protection tester, testing whether action values and action time of various protections meet fixed value setting requirements, respectively testing various protections, namely, respectively carrying out high frequency, distance and zero sequence and reclosing matching test, withdrawing the unused protective pressing plate, and carefully recording test data and device action signals and printing a generated report after each test is finished.
(4) Debugging the static test function of the system protection machine: the debugging of the protection function is generally according to the relay protection device types such as circuit, transformer, motor, etc., according to the design fixed value, test is carried out to the protection device simulation person-conveying corresponding current, voltage with the current booster on the circuit once or with the voltage booster on the mutual inductor secondary side, the test device action precision is transmitted to the circuit breaker, the protection loading information, switch displacement information and display action time data should be reported on the background machine, the microcomputer protection device is arranged at the 'debugging' position, the special test direct current power supply is accessed, and the direct current power supply switches of other devices on the screen are in the disconnection position, the power supplies 80% Un, 100% Un and 115% Un are adjusted, the output voltage of the microcomputer protection device power supply part should be in the allowable range and should be kept stable.
(5) Debugging of a generator synchronous test: the method comprises the steps of carrying out a parallel test in a pseudo-period when a unit is started, separating a breaker at an outlet of a generator after a manual parallel test in the pseudo-period is not abnormal, closing a disconnector at the outlet of the generator, switching on a system of the generator in a manual synchronous mode according to a sequence in the pseudo-period after a command for allowing the generator and the system to be parallel by scheduling is obtained, and finally carrying out automatic starting, stopping, emergency stopping tests in accidents and mutual conversion tests of various operation conditions on the unit under normal working conditions.
(6) Debugging of printing and remote signaling functions: the background remote control circuit breaker is correct in the check of the remote control function, the printer is required to be correctly set, the printed image and the report are complete and attractive, the size is proper, and the automatic printing function is timely, accurate, complete and in accordance with the operation management requirement.
(7) After the system debugging is finished: the defect elimination treatment is carried out on the problems reflected in the debugging period; and the data backup and the data debugging of the microcomputer monitoring software are finished.
As a further scheme of the invention: the debugging of the power supply loop comprises a power supply system test, a signal system test, a control and protection loop test and an interlocking and locking test between devices.
As a further scheme of the invention: the debugging of the synchronous test of the generator comprises controlled object testing, frequency and voltage testing, switching value input and output channel testing button switch testing and PT disconnection function testing.
As a further scheme of the invention: the debugging of the static test function of the system protection machine is to check the action conditions of voltage, polarity of inlet and outlet ends, phase, relay and the like of each element in a secondary circuit so as to judge whether the wiring of the circuit is correct.
As a further scheme of the invention: the debugging of the static test function of the system protector is to check whether the change of the electric inspection current transformer and the contact mode and polarity of the secondary winding meet the requirements, the setting value recheck of the relay and the ground load impedance measurement of the secondary circuit.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. the debugging method of the power station microcomputer monitoring and protecting system can achieve full and comprehensive debugging of various functions of the microcomputer protection and monitoring device through debugging of a power supply loop, reflection of switch states on a background machine, checking of fixed values and action signals of equipment such as a transformer and the like, debugging of a static test function of the system protecting machine, debugging of a synchronous test of a generator and debugging of a printing function and a remote signaling function, improves the reliability, accuracy, operation efficiency and instantaneity of field monitoring, and therefore can guarantee the safety and effectiveness of operation of a power station system.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The invention provides a technical scheme that: a debugging method of a power station microcomputer monitoring protection system comprises the following steps:
(1) debugging of a power supply loop: whether power supply insurance or switches such as a direct current screen control output power supply, an energy storage power supply and a switching-on power supply are closed is checked, a power supply switch and a control loop switch are closed, the circuit breakers are manually switched on and off one by one, the control loop is checked, whether the color of a circuit breaker position indicator lamp is correct or not is judged, whether the reaction is normal or not is judged, the control direct current power supply is immediately closed if the reaction is abnormal, and the reason is searched.
(2) Reflection of the switch state on the background machine: and (3) pulling the primary side circuit breaker and the isolating switch one by one, checking whether the event name and the time of the background machine are correct, electrifying, preheating for 5 minutes, adjusting zero drift, and disconnecting the electrical connection between the device and a tester or a standard source to ensure that no input exists on an alternating current terminal of the device.
(3) Checking the fixed value and the action signal of equipment such as a transformer: checking the correct condition of signal loops of gas, temperature, pressure and the like of a transformer body according to a schematic diagram or a wiring diagram, checking whether the name and time displayed on a background machine are correct, whether heavy gas signals and pressure signals should jump circuit breakers at each side of a main transformer and light gas and temperature high signals should be alarmed, checking whether the temperature of the transformer is correct displayed on the background machine, simulating various types of faults by using a microcomputer type relay protection tester, testing whether action values and action time of various protections meet fixed value setting requirements, respectively testing various protections, namely, respectively carrying out high frequency, distance and zero sequence and reclosing matching test, withdrawing the unused protective pressing plate, and carefully recording test data and device action signals and printing a generated report after each test is finished.
(4) Debugging the static test function of the system protection machine: the debugging of the protection function is generally according to the relay protection device types such as circuit, transformer, motor, etc., according to the design fixed value, test is carried out to the protection device simulation person-conveying corresponding current, voltage with the current booster on the circuit once or with the voltage booster on the mutual inductor secondary side, the test device action precision is transmitted to the circuit breaker, the protection loading information, switch displacement information and display action time data should be reported on the background machine, the microcomputer protection device is arranged at the 'debugging' position, the special test direct current power supply is accessed, and the direct current power supply switches of other devices on the screen are in the disconnection position, the power supplies 80% Un, 100% Un and 115% Un are adjusted, the output voltage of the microcomputer protection device power supply part should be in the allowable range and should be kept stable.
(5) Debugging of a generator synchronous test: the method comprises the steps of carrying out a parallel test in a pseudo-period when a unit is started, separating a breaker at an outlet of a generator after a manual parallel test in the pseudo-period is not abnormal, closing a disconnector at the outlet of the generator, switching on a system of the generator in a manual synchronous mode according to a sequence in the pseudo-period after a command for allowing the generator and the system to be parallel by scheduling is obtained, and finally carrying out automatic starting, stopping, emergency stopping tests in accidents and mutual conversion tests of various operation conditions on the unit under normal working conditions.
(6) Debugging of printing and remote signaling functions: the background remote control circuit breaker is correct in the check of the remote control function, the printer is required to be correctly set, the printed image and the report are complete and attractive, the size is proper, and the automatic printing function is timely, accurate, complete and in accordance with the operation management requirement.
(7) After the system debugging is finished: the defect elimination treatment is carried out on the problems reflected in the debugging period; and the data backup and the data debugging of the microcomputer monitoring software are finished.
Specifically, the debugging of the power supply loop comprises a power supply system test, a signal system test, a control and protection loop test, and an interlocking and locking test between devices.
Specifically, the debugging of the generator synchronous test comprises a controlled object test, a frequency and voltage test, a switching value input/output channel test button switch test and a PT disconnection function test.
Specifically, the debugging of the static test function of the system protection machine is to check the action conditions of voltage, polarity of an inlet end and an outlet end, phase, a relay and the like of each element in the secondary loop so as to judge whether the wiring of the loop is correct or not.
Specifically, the debugging of the static test function of the system protector is to check whether the change of the current transformer and the contact mode and polarity of the secondary winding meet the requirements, the setting value recheck of the relay and the ground load impedance measurement of the secondary circuit.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. A debugging method of a power station microcomputer monitoring protection system is characterized by comprising the following steps:
(1) debugging of a power supply loop: checking whether power supply insurance or switches such as a direct current screen control output power supply, an energy storage power supply, a switching-on power supply and the like are closed, closing a power supply switch and a control loop switch, manually switching on and off the circuit breakers one by one, checking whether the control loop and a circuit breaker position indicator lamp are correct in color or not, responding normally or not, immediately closing the control direct current power supply if the control loop and the circuit breaker position indicator lamp are abnormal, and searching for reasons;
(2) reflection of the switch state on the background machine: the primary side circuit breaker and the isolating switch are pulled one by one, then whether the event name and the time of the background machine are correct or not is checked, the background machine is electrified and preheated for 5 minutes, the null shift is adjusted, and then the electrical connection between the device and a tester or a standard source is disconnected, so that no input is generated on an alternating current terminal of the device;
(3) checking the fixed value and the action signal of equipment such as a transformer: checking the correct condition of signal loops of gas, temperature, pressure and the like of a transformer body according to a schematic diagram or a wiring diagram, checking whether the name and time displayed on a background machine are correct, whether heavy gas signals and pressure signals should jump circuit breakers at each side of a main transformer and light gas and temperature high signals should be alarmed, checking whether the temperature of the transformer is correct displayed on the background machine, simulating various types of faults by using a microcomputer type relay protection tester, testing whether action values and action time of various protections meet fixed value setting requirements, respectively testing various protections, namely, respectively carrying out high frequency, distance and zero sequence and reclosing matching test, withdrawing the unused protective pressing plate, carefully recording test data and device action signals after each test is finished, and printing a generated report;
(4) debugging the static test function of the system protection machine: debugging of the protection function generally comprises the steps of simulating corresponding current and voltage of a person to be protected by a protection device by using a current booster at one time of a line or by using a voltage booster at the secondary side of a mutual inductor according to a design fixed value according to the types of relay protection devices such as a line, a transformer, a motor and the like, checking the action precision of the device and transmitting the action precision to a circuit breaker, reporting protection loading information, switch displacement information and display action time data on a background machine, placing a microcomputer protection device at a debugging position, connecting a special test direct-current power supply, and paying attention to the fact that direct-current power switches of other devices on a screen are in a disconnection position, adjusting 80% Un, 100% Un and 115% Un of the power supply, wherein the output voltage of the power supply part of the microcomputer protection device is in an allowable range;
(5) debugging of a generator synchronous test: performing a pseudo-synchronization parallel test when a unit is started, separating a generator outlet breaker after a manual pseudo-synchronization is abnormal, closing a generator outlet isolating switch, switching off a generator system in a manual synchronization mode according to a pseudo-synchronization sequence after a command for allowing the generator and the system to be parallel in a dispatching manner, and finally performing automatic starting, stopping, emergency stopping tests of accidents and mutual conversion tests of various operation conditions on the unit under normal working conditions;
(6) debugging of printing and remote signaling functions: the background remote control circuit breaker is correct in the check of the remote control function, the printer is required to be correctly set, the printed image and the report are complete and beautiful, the size is proper, the automatic printing function is timely and accurate, and the automatic printing function is complete and meets the requirement of operation management;
(7) after the system debugging is finished: the defect elimination treatment is carried out on the problems reflected in the debugging period; and the data backup and the data debugging of the microcomputer monitoring software are finished.
2. The debugging method of the power station microcomputer monitoring and protecting system according to claim 1, characterized in that: the debugging of the power supply loop comprises a power supply system test, a signal system test, a control and protection loop test and an interlocking and locking test between devices.
3. The debugging method of the power station microcomputer monitoring and protecting system according to claim 1, characterized in that: the debugging of the synchronous test of the generator comprises a controlled object test, a frequency and voltage test, a switching value input and output channel test, a button switch test and a PT disconnection function test.
4. The debugging method of the power station microcomputer monitoring and protecting system according to claim 1, characterized in that: the debugging of the static test function of the system protection machine is to check the action conditions of voltage, polarity of inlet and outlet ends, phase, relay and the like of each element in a secondary circuit so as to judge whether the wiring of the circuit is correct.
5. The debugging method of the power station microcomputer monitoring and protecting system according to claim 1, characterized in that: the debugging of the static test function of the system protector is to check whether the change of the electric inspection current transformer and the contact mode and polarity of the secondary winding meet the requirements, the setting value recheck of the relay and the ground load impedance measurement of the secondary circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010622672.1A CN111722047A (en) | 2020-07-01 | 2020-07-01 | Debugging method of power station microcomputer monitoring protection system |
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| CN202010622672.1A CN111722047A (en) | 2020-07-01 | 2020-07-01 | Debugging method of power station microcomputer monitoring protection system |
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Cited By (3)
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| CN113153652A (en) * | 2021-03-22 | 2021-07-23 | 明阳智慧能源集团股份公司 | Method for realizing online detection of reliability of pitch-variable safety circuit of wind turbine generator |
| CN116840748A (en) * | 2023-08-30 | 2023-10-03 | 国网智能电网研究院有限公司 | Polarity detection device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112345859A (en) * | 2020-11-04 | 2021-02-09 | 中铁电气化（武汉）设计研究院有限公司 | Protection linkage test method and device |
| CN113153652A (en) * | 2021-03-22 | 2021-07-23 | 明阳智慧能源集团股份公司 | Method for realizing online detection of reliability of pitch-variable safety circuit of wind turbine generator |
| CN113153652B (en) * | 2021-03-22 | 2022-07-12 | 明阳智慧能源集团股份公司 | Method for realizing online detection of reliability of pitch-variable safety loop of wind turbine generator |
| CN116840748A (en) * | 2023-08-30 | 2023-10-03 | 国网智能电网研究院有限公司 | Polarity detection device and method |
| CN116840748B (en) * | 2023-08-30 | 2023-11-14 | 国网智能电网研究院有限公司 | Polarity detection device and method |
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Application publication date: 20200929 |