CN116455043A - Logic verification method for automatic switching device of standby power supply based on different test conditions - Google Patents
Logic verification method for automatic switching device of standby power supply based on different test conditions Download PDFInfo
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- CN116455043A CN116455043A CN202210010195.2A CN202210010195A CN116455043A CN 116455043 A CN116455043 A CN 116455043A CN 202210010195 A CN202210010195 A CN 202210010195A CN 116455043 A CN116455043 A CN 116455043A
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- automatic switching
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 238000012795 verification Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004088 simulation Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
- 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
- H02J9/062—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 for AC powered loads
-
- 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
- G01R31/40—Testing power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The logic verification method of the automatic switching device of the standby power supply based on different test conditions combines the characteristics and specific application scenes of the automatic switching device of the standby power supply to formulate a logic verification scheme and method suitable for the automatic switching device of the standby power supply; under the condition of simulating a real platform test based on the ADPSS number, a logic verification method suitable for a conventional station spare power automatic switching device in a closed-loop environment is established. Based on the test condition of the relay protection tester, a logic verification method suitable for the intelligent station backup automatic switching device in an open loop environment is established. The method realizes logic verification of the standby power supply automatic switching device in the closed loop/open loop environment of the standby power supply automatic switching device in different application scenes such as an intelligent station, a conventional station and the like based on different test conditions, and is beneficial to improving the reliability of the action of the standby power supply automatic switching device.
Description
Technical Field
The invention relates to the technical field of operation and control of a standby power supply automatic switching device of an electric power system, in particular to a logic verification method of the standby power supply automatic switching device based on different test conditions.
Background
With the development of social economy, the requirements of human beings on the reliability of power supply are increasing, and the access of new energy sources and other power electronic equipment also makes the power grid tend to be complex. In order to improve the operation reliability of the power system, more and more safety automatic devices such as a standby power supply automatic switching device are connected into the power system, and the standby power supply automatic switching device not only can realize the automatic switching of the standby power supply under the condition that the incoming line, the bus or the transformer and the like are in fault, but also can act under the condition that the circuit breaker is stolen and jumped so as to improve the reliability of power supply. Meanwhile, the occurrence of incorrect action of the automatic switching device of the standby power supply can greatly influence the stability of the power system. Therefore, in order to ensure the action accuracy of the standby power supply automatic switching device, the logic of the device needs to be comprehensively verified, and the logic verification of the standby power supply automatic switching device is performed based on different test conditions according to different characteristics of the standby power supply automatic switching device of the conventional station and the intelligent station.
Disclosure of Invention
The invention provides a logic verification method of a standby power supply automatic switching device based on different test conditions, which aims to overcome the defects of the technology and improve the reliability of the action of the standby power supply automatic switching device.
The technical scheme adopted for overcoming the technical problems is as follows:
a logic verification method of a standby power supply automatic switching device based on different test conditions comprises the following steps:
a) Combining the characteristics and the application scene of the automatic switching device of the standby power supply, and formulating a logic verification method suitable for the automatic switching device of the standby power supply;
b) Aiming at a standby power supply automatic switching device of a conventional station, a test model of the standby power supply automatic switching device is built, the test model is composed of an ADPSS number simulation real platform, an electromagnetic transient model of an application scene of the tested standby power supply automatic switching device is built in ADPSS software, and the electromagnetic model interacts with a state quantity of a circuit breaker and interacts with a power amplifier in voltage and current through a physical interface box;
c) Aiming at the automatic switching device of the standby power supply of the intelligent station, a logic verification method applicable to the automatic switching device of the intelligent station in an open loop environment is established under the test condition based on the relay protection tester.
Further, the logic verification of the standby power supply automatic switching device in the step a) includes:
a-1) under the condition that a secondary circuit of the voltage transformer is broken, detecting whether a PT broken line signal is sent by the device or not;
a-2) under the condition that the secondary circuit of the segmented current transformer is broken, detecting whether a CT broken line signal is sent by the device;
a-3) under the condition that the action of the protection device causes the voltage loss of the bus in the station and the pressure-exerting bus side spare power automatic switching device is not locked, detecting whether the device is connected with the secondary load of the local power supply parallel network line of the voltage-losing bus connection belt when the power supply circuit breaker is tripped;
a-4) sending a local charge and discharge state signal to the spare power automatic switching device, and detecting whether a charge and discharge state signal message accords with the actual state of the device;
a-5) the automatic reset backup automatic switching logic of the backup automatic switching device, and detecting whether the device allows the next action after the corresponding charging condition is met;
a-6) detecting the action condition of the device when the action fixed value is not reached after the tripping timing is started by the bus under-voltage, and the tripping starting condition is not met any more;
a-7) under the condition that the sectional circuit breaker is automatically thrown on a fault bus or fault equipment, whether the detection device starts acceleration protection after closing or not is detected;
a-8) under the condition that equipment is overloaded after the automatic switching-on and switching-off actions of the spare power, whether an overload relief is started or not is detected by the detection device;
a-9) detecting the action condition of the device when the double-voltage conditions of the two sections of buses are met under the condition that the sectional circuit breaker is automatically thrown on a fault bus or a fault device.
Further, the segmented current transformers in step a-2) are divided into an inner bridge current transformer and a bus-tie current transformer.
Further, the segment breakers in steps a-7) and a-9) are bus-tie breakers.
Further, step b) comprises the steps of:
b-1) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by charging of the standby power supply automatic switching device to the standby power supply automatic switching device, and the standby power supply automatic switching device is not provided with other locking conditions and detects whether the standby power supply automatic switching device is charged or not;
b-2) the ADPSS electromagnetic model is matched with a standby power supply automatic switching device, and whether the standby power supply automatic switching device discharges or not is detected;
b-3) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by the action of the automatic switching device of the standby power supply to the automatic switching device of the standby power supply, determines the symbol requirements of the automatic switching device of the standby power supply, and detects whether the automatic switching device of the standby power supply acts or not;
b-4) the ADPSS electromagnetic model is matched with the standby power supply automatic switching device, and whether the standby power supply automatic switching device is locked or not is detected, and the technical principle of the standby power supply automatic switching device is checked.
Further, the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-2) comprises the following steps: the ADPSS model outputs standby incoming line voltage which is lower than the voltage fixed value by 15s, the standby power supply automatic switching device locks the standby automatic switching on/off, and the position of the circuit breaker is abnormal.
Further, the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-4) comprises the following steps: the protection device of the tripping standby breaker acts, and the standby breaker is automatically switched on a fault bus or fault equipment.
The beneficial effects of the invention are as follows: combining the characteristics of the automatic switching device of the standby power supply and specific application scenes to formulate a logic verification scheme and a logic verification method suitable for the automatic switching device of the standby power supply; under the condition of simulating a real platform test based on the ADPSS number, a logic verification method suitable for a conventional station spare power automatic switching device in a closed-loop environment is established. Based on the test condition of the relay protection tester, a logic verification method suitable for the intelligent station backup automatic switching device in an open loop environment is established. The method realizes logic verification of the standby power supply automatic switching device in the closed loop/open loop environment of the standby power supply automatic switching device in different application scenes such as an intelligent station, a conventional station and the like based on different test conditions, and is beneficial to improving the reliability of the action of the standby power supply automatic switching device.
Drawings
FIG. 1 is a flow chart of a logic verification method of a standby power supply automatic switching device based on different test conditions;
FIG. 2 is a graph showing the result of recording the operation of the automatic switching device of the standby power supply under the test condition of the real platform based on the ADPSS number simulation in the embodiment of the invention;
fig. 3 is a test environment set up under test conditions based on a relay protection tester in an embodiment of the invention.
Detailed Description
The invention will be further described with reference to fig. 1, 2 and 3.
A logic verification method of a standby power supply automatic switching device based on different test conditions comprises the following steps:
a) And combining the characteristics and the application scene of the automatic switching device of the standby power supply to formulate a logic verification method suitable for the automatic switching device of the standby power supply.
b) Aiming at the standby power supply automatic switching device of the conventional station, under the condition of simulating a real platform test based on the ADPSS number, a test model suitable for the standby power supply automatic switching device of a relevant model is built, and a test model of the standby power supply automatic switching device is built. The ADPSS number imitates a real platform and mainly comprises a server, a physical interface box, a power amplifier and related software. In order to realize detection of the standby power supply automatic switching device, the test model is composed of an ADPSS number simulation real platform, an electromagnetic transient model of an application scene of the tested standby power supply automatic switching device is built in ADPSS software, and the electromagnetic model interacts with the state quantity of a circuit breaker and interacts with the voltage and the current of a power amplifier through a physical interface box. Therefore, the semi-physical test of the standby power supply automatic switching device under the condition of simulating a real platform based on the ADPSS number is realized.
c) Aiming at the automatic switching device of the standby power supply of the intelligent station, a logic verification method applicable to the automatic switching device of the intelligent station in an open loop environment is established under the test condition based on the relay protection tester.
Aiming at a conventional station standby power supply automatic switching device, under the condition of simulating a real platform test based on the number of ADPSS, a test model suitable for the standby power supply automatic switching device of a relevant model is built, and during the action process of the standby power supply automatic switching device, the action condition of a circuit breaker is recorded based on the ADPSS, as shown in figure 2. As can be seen from fig. 2, the automatic switching function of the standby incoming line breaker can be realized by the standby power supply automatic switching device. Aiming at the automatic switching device of the standby power supply of the intelligent station, the intelligent station is based on a test environment built under the test condition of the relay protection tester, as shown in figure 3. Combining the characteristics of the automatic switching device of the standby power supply and specific application scenes to formulate a logic verification scheme and a logic verification method suitable for the automatic switching device of the standby power supply; under the condition of simulating a real platform test based on the ADPSS number, a logic verification method suitable for a conventional station spare power automatic switching device in a closed-loop environment is established. Based on the test condition of the relay protection tester, a logic verification method suitable for the intelligent station backup automatic switching device in an open loop environment is established. The method of the invention realizes logic verification of the standby power supply automatic switching device in the closed loop/open loop environment of the standby power supply automatic switching device in different application scenes such as intelligent stations, conventional stations and the like based on different test conditions, is beneficial to improving the reliability of the action of the standby power supply automatic switching device, and protects the driving and the navigation for the safe and stable operation of the system.
Example 1:
the logic verification of the standby power supply automatic switching device in the step a) comprises the following steps:
a-1) under the condition that the secondary circuit of the voltage transformer is broken, whether the PT broken line signal is sent by the detection device or not is judged.
a-2) under the condition that the secondary circuit of the segmented current transformer is broken, whether the detection device sends a CT broken line signal or not (the automatic switching device of the inner bridge is expanded without considering the CT broken line alarming function).
a-3) under the condition that the bus in the station is out of voltage and the pressure-exerting bus side spare power automatic switching device is not locked due to the action of the protection device, when the power circuit breaker is operated, whether the secondary load of the regional power parallel network line of the out-of-voltage bus is connected or not is connected in a connected mode (when needed, the parallel compensation capacitor is also connected in a connected mode).
a-4) sending a local charge and discharge state signal to the spare power automatic switching device, and detecting whether a charge and discharge state signal message accords with the actual state of the device.
a-5) the automatic reset backup automatic switching logic of the backup automatic switching device detects whether the device allows the next action after the corresponding charging condition is met.
a-6) detecting the action condition of the device when the action fixed value is not reached and the tripping starting condition is not met after the tripping timing is started by the bus under-voltage.
a-7) under the condition that the sectional circuit breaker is automatically switched on a fault bus or fault equipment, whether the device starts the acceleration protection after switching on or not is detected.
a-8) under the condition of overload of equipment after the automatic switching-on and switching-off actions of the spare power, whether the overload relief is started or not is detected by the detection device.
a-9) detecting the action condition of the device when the double-voltage conditions of the two sections of buses are met under the condition that the sectional circuit breaker is automatically thrown on a fault bus or a fault device.
Example 2:
the segmented current transformer in the step a-2) is divided into an inner bridge current transformer and a bus-tie current transformer.
Example 3:
the segment breakers in step a-7) and step a-9) are bus-tie breakers.
Example 4:
step b) comprises the steps of:
b-1) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by charging of the standby power supply automatic switching device to the standby power supply automatic switching device, and the standby power supply automatic switching device is not provided with other locking conditions and detects whether the standby power supply automatic switching device is charged or not;
b-2) the ADPSS electromagnetic model is matched with a standby power supply automatic switching device, and whether the standby power supply automatic switching device discharges or not is detected;
b-3) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by the action of the automatic switching device of the standby power supply to the automatic switching device of the standby power supply, determines the symbol requirements of the automatic switching device of the standby power supply, and detects whether the automatic switching device of the standby power supply acts or not;
b-4) the ADPSS electromagnetic model is matched with the standby power supply automatic switching device, and whether the standby power supply automatic switching device is locked or not is detected, and the technical principle of the standby power supply automatic switching device is checked.
Example 5:
the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-2) comprises the following steps: the ADPSS model outputs standby incoming line voltage which is lower than the voltage fixed value by 15s, the standby power supply automatic switching device locks the standby automatic switching on/off, and the position of the circuit breaker is abnormal.
Example 6:
the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-4) comprises the following steps: the protection device of the tripping standby breaker acts, and the standby breaker is automatically switched on a fault bus or fault equipment.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The logic verification method of the automatic switching device of the standby power supply based on different test conditions is characterized by comprising the following steps of:
a) Combining the characteristics and the application scene of the automatic switching device of the standby power supply, and formulating a logic verification method suitable for the automatic switching device of the standby power supply;
b) Aiming at a standby power supply automatic switching device of a conventional station, a test model of the standby power supply automatic switching device is built, the test model is composed of an ADPSS number simulation real platform, an electromagnetic transient model of an application scene of the tested standby power supply automatic switching device is built in ADPSS software, the electromagnetic model interacts with the state quantity of a circuit breaker of the standby power supply automatic switching device through a physical interface box and the like, and interacts with voltage, current and the like through the physical interface box and a power amplifier;
c) Aiming at the automatic switching device of the standby power supply of the intelligent station, a logic verification method applicable to the automatic switching device of the intelligent station in an open loop environment is established under the test condition based on the relay protection tester.
2. The logic verification method for a standby power supply automatic switching device based on different test conditions according to claim 1, wherein the logic verification for the standby power supply automatic switching device in step a) comprises:
a-1) under the condition that a secondary circuit of the voltage transformer is broken, detecting whether a PT broken line signal is sent by the device or not;
a-2) under the condition that the secondary circuit of the segmented current transformer is broken, detecting whether a CT broken line signal is sent by the device;
a-3) under the condition that the action of the protection device causes the voltage loss of the bus in the station and the pressure-exerting bus side spare power automatic switching device is not locked, detecting whether the device is connected with the secondary load of the local power supply parallel network line of the voltage-losing bus connection belt when the power supply circuit breaker is tripped;
a-4) sending a local charge and discharge state signal to the spare power automatic switching device, and detecting whether a charge and discharge state signal message accords with the actual state of the device;
a-5) the automatic reset backup automatic switching logic of the backup automatic switching device, and detecting whether the device allows the next action after the corresponding charging condition is met;
a-6) detecting the action condition of the device when the action fixed value is not reached after the tripping timing is started by the bus under-voltage, and the tripping starting condition is not met any more;
a-7) under the condition that the sectional circuit breaker is automatically thrown on a fault bus or fault equipment, whether the detection device starts acceleration protection after closing or not is detected;
a-8) under the condition that equipment is overloaded after the automatic switching-on and switching-off actions of the spare power, whether an overload relief is started or not is detected by the detection device;
a-9) detecting the action condition of the device when the double-voltage conditions of the two sections of buses are met under the condition that the sectional circuit breaker is automatically thrown on a fault bus or a fault device.
3. The logic verification method for the automatic switching device of the standby power supply based on different test conditions according to claim 1, wherein the method comprises the following steps: the segmented current transformer in the step a-2) is divided into an inner bridge current transformer and a bus-tie current transformer.
4. The logic verification method for the automatic switching device of the standby power supply based on different test conditions according to claim 1, wherein the method comprises the following steps: the segment breakers in step a-7) and step a-9) are bus-tie breakers.
5. The logic verification method for the automatic switching device of the standby power supply based on different test conditions as claimed in claim 1, wherein the step b) comprises the following steps:
b-1) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by charging of the standby power supply automatic switching device to the standby power supply automatic switching device, and the standby power supply automatic switching device is not provided with other locking conditions and detects whether the standby power supply automatic switching device is charged or not;
b-2) the ADPSS electromagnetic model is matched with a standby power supply automatic switching device, and whether the standby power supply automatic switching device discharges or not is detected;
b-3) the ADPSS electromagnetic model outputs voltage, current and circuit breaker positions required by the action of the automatic switching device of the standby power supply to the automatic switching device of the standby power supply, determines the symbol requirements of the automatic switching device of the standby power supply, and detects whether the automatic switching device of the standby power supply acts or not;
b-4) the ADPSS electromagnetic model is matched with the standby power supply automatic switching device, and whether the standby power supply automatic switching device is locked or not is detected, and the technical principle of the standby power supply automatic switching device is checked.
6. The logic verification method for the automatic switching device of the standby power supply based on different test conditions according to claim 5, wherein the method comprises the following steps: the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-2) comprises the following steps: the ADPSS model outputs standby incoming line voltage which is lower than the voltage fixed value by 15s, the standby power supply automatic switching device locks the standby automatic switching on/off, and the position of the circuit breaker is abnormal.
7. The logic verification method for the automatic switching device of the standby power supply based on different test conditions according to claim 5, wherein the method comprises the following steps: the process of the mutual matching of the ADPSS electromagnetic model and the standby power supply automatic switching device in the step b-4) comprises the following steps: the protection device of the tripping standby breaker acts, and the standby breaker is automatically switched on a fault bus or fault equipment.
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| CN202210010195.2A CN116455043A (en) | 2022-01-06 | 2022-01-06 | Logic verification method for automatic switching device of standby power supply based on different test conditions |
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