CN102591211B - Synchronous simulation control system - Google Patents
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- CN102591211B CN102591211B CN201210047132.0A CN201210047132A CN102591211B CN 102591211 B CN102591211 B CN 102591211B CN 201210047132 A CN201210047132 A CN 201210047132A CN 102591211 B CN102591211 B CN 102591211B
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Abstract
The invention discloses a synchronous simulation control system. The system consists of a synchronous test control center (1) and multiple synchronous phase control simulation devices (2); and the system controls signals of output steady-state three-phase AC (alternating current), voltage, frequency, phase angle and the like of the multiple synchronous phase control simulation devices (2) through the synchronous test control center (1) so as to realize detection of the steady-state measurement precision of a WAMS (wide-area measurement system) and test of the system communication protocol. Through the invention, the problem of unavailable equipment for detecting the measurement precision and the dynamic monitoring analysis function of the WAMS is solved, accurate and reliable dynamic data is provided for a power system, and firm foundation is laid for the stable system control of a large-area power grid. The synchronous simulation control system disclosed by the invention is suitable for the detection of the WAMS.
Description
technical field
The present invention relates to a kind of synchronous simulation control system, belong to power system measuring technical field.
background technology
Based on the Wide Area Power real-time dynamic monitoring system (WAMS) of phasor measuring set PMU, as the basis of intelligent transmission operation management system and the important composition at intelligent scheduling center, it is an important step of intelligent grid development.The Wide Area Power real-time dynamic monitoring system (WAMS) is all installed comprehensively by each province of the current whole nation, owing to lacking corresponding detection system, the measuring accuracy of WAMS system in actual motion and Dynamic Changes Analysis function be not strictly through inspection up to now, causes WAMS system in operational process, do not play its real effect.
summary of the invention
The object of the invention is, in order to solve the Wide Area Power real-time dynamic monitoring system (WAMS) Site Detection problem, the present invention discloses a kind of synchronous simulation control system.
Technical scheme of the present invention is, synchronous simulation control system of the present invention is made up of a synchronous test control center and the synchronous phased simulator of multiple stage; Synchronous simulation control system of the present invention controls the signal such as output stable state three-phase alternating current, voltage, frequency, phase angle of the synchronous phased simulator of multiple stage by synchronous test control center, realizes the detection of the steady state measurement precision to the Wide Area Power real-time dynamic monitoring system (WAMS), system communication protocol convert.The Detection of content of steady state measurement precision comprises: drift inspection, alternating current, the test of voltage magnitude measuring error, alternating voltage current phase angle error testing, frequency error test, voltage, the unbalanced test of current amplitude etc.System communication protocol convert comprises message format test, data transmit-receive test.
Synchronous phased simulator is a kind of clock standard source device, and this equipment in the time of agreement, synchronously can trigger with GPS pulse per second (PPS) and produce certain frequency, phase place, the three-phase ac signal of amplitude or other fault waveform signals, as oscillating signal etc.
Synchronous phased simulator is made up of control module, synchronous digital frequency signal source, power source module, wireless communication module, memory module, GPS module, man-machine interface and output interface.Control module is the nucleus module of synchronous phased simulator, and this module is mainly used in the Function implementation between cooperative control device modules, realizes the Long-distance Control of synchronous phased simulator, clock synchronous output function.Control module receives test instruction by man-machine interface or wireless communication module, and according to the UTC clock that requirement and the GPS module of test instruction provide, control synchronization digital signal frequency source exports synchronous AC signal quantity; Synchronous digital signal frequency source upon the reception of control signals, read the amplitude of each sampled point of AC signal stored in storer, form discrete a-c cycle signal, export simulation small-signal through the conversion of D/A digital and analogue signals, obtain the markers of GPS module UTC clock output as simulating signal simultaneously; Then simulation small-signal power input source module is carried out signal amplification, finally realize synchronous three-phase alternating current analog signal output.
Synchronous test control center hardware is made up of reference clock module, wireless communication module, synchronism detection control module and I/O interface.Synchronous test control center completes the Control on Communication to synchronous phased simulator, realizes the formulation of the synchronous phased simulator testing scheme to strange land multinode, assigning of test instruction, and normal data and test result obtain and error calculation etc.In actual applications, a synchronous phased simulator can be selected as synchronous test control center after configuration control center application program, to reduce complexity and the testing cost of whole system.Synchronous test control center wirelessly completes communication with synchronous phased simulator, and adoptable pattern is chosen as GSM, CDMA or 3G, is shaken hands by synchronous test control center initiating communication.
Synchronous test control center is according to testing scheme, assign the synchronous phased simulator of instruction control multiple stage and export various step signal, equal system burst event is entered at simulation system generation voltage jump, current break, frequency discontinuity, merit angle, realizes the dynamic monitoring Function detection of WAMS system.
Synchronous test control center, according to testing scheme, calculates the three-phase alternating current simulate signal value of each test point different time section, and is issued to synchronous phased simulator, the state of simulating grid actual motion, realize WAMS System Dynamic Analysis Function detection.
Exchanged by the communication data of synchronous test control center phased simulator synchronous with multiple stage, data transmission delay and WAMS system clock exact correspondence under WAMS actual operating mode can be detected.
The present invention's beneficial effect is compared with the prior art, a difficult problem for measuring accuracy and the Dynamic Changes Analysis function shortage equipment detecting the Wide Area Power real-time dynamic monitoring system (WAMS) can be solved by this invention, be that electric system provides accurately, reliable dynamic data, the system stability for large regions electrical network controls to set up solid foundation.
The present invention is applicable to the detection of the Wide Area Power real-time dynamic monitoring system (WAMS).
accompanying drawing explanation
Fig. 1 is synchronous simulation control system schematic diagram of the present invention;
Fig. 2 is synchronous phased simulator structured flowchart;
Fig. 3 is synchronous test control center structured flowchart;
Picture in picture number represents: 1 is synchronous test control center; 2 is synchronous phased simulators; 3 is radio communications.
Embodiment
The specific embodiment of the invention as shown in Figure 1.
Set up synchronous test control center, and test point selectively arranges synchronous phased simulator, by wireless network, build synchronous simulation control system.After each synchronous phased simulator and tested locking phase measurement mechanism PMU wiring complete, the IP address of synchronous test control center is obtained by manual type, and send connection request to synchronous test control center, synchronous test control center is receiving this information, confirm that request Concurrency send the numbering of uniqueness to this synchronous phase-control device, set up point to point connect link.After all devices that takes one's test add synchronous simulation control system all, synchronous test control center can carry out initial testing to whole system, globality, validity, the reliability of checking synchronous simulation control system.Basic communication protocol adopts ICP/IP protocol, and application layer protocol has respective change according to transferring content.
Set up unified system time standard:
(1) communication delay calculates.After synchronous simulation control system has built, control center has sent broadcasting command, requires that each synchronous phase-control device is after receiving order, uploads the UTC clock of test point, the UTC clock calculation control center uploaded according to each point and the communication delay of each test point.
(2) gps clock accuracy test.Control center sends broadcasting command, require that each synchronous phase-control device uploads the information of band UTC clock to control center at identical time point, arrive the actual clock value being each test point after control center deducts the communication delay of each point the time, thus obtain the clock difference of each test point, according to WAMS System Technical Specification, the clock accuracy of each test point GPS device can be judged, if clock accuracy does not meet the demands, need to change GPS device.
According to the testing scheme formulated, calculate each point synchronism detection data.
The dynamic property of carrying out the Wide Area Power real-time dynamic monitoring system (WAMS) detects, and need the actual operating mode of simulating grid, because each power circuit actual parameter is inconsistent, when each, the simulate signal parameter of each test point of discontinuity surface is also different.In order to obtain these parameters, need to carry out modeling analysis to test electrical network, and by RTDS, l-G simulation test is carried out to test electric network model, for the signal parameter of every each test point of content measurement simulation calculation discontinuity surface when each, reach the effect of simulating grid practical operation situation.
Claims (5)
1. a synchronous simulation control system, is characterized in that, described system is made up of a synchronous test control center and the synchronous phased simulator of multiple stage; Described system controls stable state three-phase alternating current, voltage, frequency, the phase angle signal of the synchronous phased simulator output of multiple stage by synchronous test control center, realizes the detection of the steady state measurement precision to the Wide Area Power real-time dynamic monitoring system (WAMS), system communication protocol convert;
Described synchronous phased simulator is made up of control module, synchronous digital frequency signal source, power source module, wireless communication module, first memory module, second memory module, GPS module, man-machine interface and output interface; Control module is bi-directionally connected with synchronous digital frequency signal source input end, wireless communication module, first memory module and man-machine interface respectively; Synchronous digital frequency signal source and power source module are bi-directionally connected, and power source module outputs signal to output interface; The output port of GPS module connects control module and synchronous digital frequency signal source respectively; Synchronous digital frequency signal source and second memory module are bi-directionally connected; Described control module is the nucleus module of described synchronous phased simulator, and this module is mainly used in the Function implementation between cooperative control device modules, realizes the Long-distance Control of synchronous phased simulator, clock synchronous output function; Described control module receives test instruction by man-machine interface or wireless communication module, and according to the UTC clock that requirement and the GPS module of test instruction provide, control synchronization digital fre-quency signal source exports synchronous AC signal quantity; Synchronous digital frequency signal source upon the reception of control signals, read the amplitude of each sampled point of AC signal stored in second memory, form discrete a-c cycle signal, export simulation small-signal through the conversion of D/A digital and analogue signals, obtain the markers of GPS module UTC clock output as simulating signal simultaneously; Then simulation small-signal power input source module is carried out signal amplification, finally realize synchronous three-phase alternating current analog signal output.
2. synchronous simulation control system according to claim 1, it is characterized in that, described synchronous test control center completes the Control on Communication to synchronous phased simulator, realize the formulation to the synchronous phased simulator testing scheme of strange land multinode, assigning of test instruction, normal data and test result obtain and error calculation.
3. synchronous simulation control system according to claim 1, it is characterized in that, described synchronous test control center wirelessly completes communication with synchronous phased simulator, and adoptable pattern is GSM, CDMA or 3G, is shaken hands by synchronous test control center initiating communication.
4. synchronous simulation control system according to claim 1, it is characterized in that, described synchronous test control center is according to testing scheme, assign the synchronous phased simulator of instruction control multiple stage and export various step signal, phase system accident is entered at simulation system generation voltage jump, current break, frequency discontinuity, merit angle, realizes dynamic monitoring Function detection.
5. synchronous simulation control system according to claim 1, it is characterized in that, the Detection of content of described steady state measurement precision comprises: drift inspection, alternating current, the test of voltage magnitude measuring error, alternating voltage current phase angle error testing, frequency error test, voltage, the test of current amplitude imbalance; Described system communication protocol convert comprises message format test, data transmit-receive test.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103163499A (en) * | 2013-03-01 | 2013-06-19 | 江西省电力科学研究院 | Synchronous phasor measuring unit (PMU) detecting device |
| CN103823200A (en) * | 2014-03-06 | 2014-05-28 | 国家电网公司 | Method for detecting distributed PMU |
| CN111668932A (en) * | 2020-06-11 | 2020-09-15 | 国网山东省电力公司电力科学研究院 | Laboratory synchronous testing system and method for transformer substation total-station PMU device |
| CN112346438B (en) * | 2020-11-09 | 2022-02-15 | 南方电网科学研究院有限责任公司 | Distributed synchronous testing device and method of stability control device |
| CN116027360A (en) * | 2023-03-22 | 2023-04-28 | 南京博网软件科技有限公司 | Beidou broadband interference resistant identification system |
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| CN2906632Y (en) * | 2005-11-16 | 2007-05-30 | 上海南瑞实业有限公司 | Portable dynamic PMU performance tester |
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| CN101629995A (en) * | 2009-08-10 | 2010-01-20 | 华中电网有限公司 | Detection method of phasor measurement unit PMU |
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| US20090088990A1 (en) * | 2007-09-30 | 2009-04-02 | Schweitzer Iii Edmund O | Synchronized phasor processor for a power system |
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| CN1904623A (en) * | 2005-07-25 | 2007-01-31 | 华东电力试验研究院 | Performance test method of synchronous phasor measuring device and test system |
| CN2906632Y (en) * | 2005-11-16 | 2007-05-30 | 上海南瑞实业有限公司 | Portable dynamic PMU performance tester |
| CN101068081A (en) * | 2007-05-09 | 2007-11-07 | 南京南瑞继保电气有限公司 | Electricity net safety stable controlling system testing method |
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Effective date of registration: 20121210 Address after: 330009 No. 88 min Qiang Road, private science and Technology Park, Jiangxi, Nanchang Applicant after: Jiangxi Electric Power Science Academy Applicant after: State Grid Corporation of China Address before: 330009 No. 88 min Qiang Road, private science and Technology Park, Jiangxi, Nanchang Applicant before: Jiangxi Electric Power Science Academy |
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Effective date of registration: 20180628 Address after: 330096 No. 88, min Qiang Road, private science and Technology Park, Nanchang, Jiangxi Co-patentee after: State Grid Corporation of China Patentee after: Power Science Research Institute of Jiangxi Electric Power Co., Ltd. Address before: 330009 No. 88, min Qiang Road, private science and Technology Park, Nanchang, Jiangxi Co-patentee before: State Grid Corporation of China Patentee before: Jiangxi Electric Power Science Academy |
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