CN105823985A - WAMS-dynamic-data-based on-line monitoring and evaluation system for excitation system of generator - Google Patents
WAMS-dynamic-data-based on-line monitoring and evaluation system for excitation system of generator Download PDFInfo
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- CN105823985A CN105823985A CN201610140593.0A CN201610140593A CN105823985A CN 105823985 A CN105823985 A CN 105823985A CN 201610140593 A CN201610140593 A CN 201610140593A CN 105823985 A CN105823985 A CN 105823985A
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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
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
Abstract
The invention relates to a WAMS-dynamic-data-based on-line monitoring and evaluation system for an excitation system of a generator. The system comprises a generator state monitoring system, an evaluation module of low-frequency oscillator effect suppression effect by an excitation regulator power system stabilizer (PSS), and an excitation regulator restriction and protection motion correctness evaluation module. Real-time calculation and monitoring of a generator operation state index, capability evaluation of low-frequency oscillation suppression by an excitation regulator power system stabilizer (PSS), and on-line evaluation on correctness of excitation regulator restriction and protection motion are realized. According to the invention, with the means of on-line equipment monitoring, a monitoring evaluation platform of a generator excitation system is established; and the generator excitation system operation state is monitored remotely in real time so as to find a factor affecting safe and stable operation of a power grid by a power side timely. Meanwhile, an auxiliary tool and a convenient means are provided for rapid positioning of an excitation system problem by the power gird scheduling operation staff.
Description
Technical field
The invention belongs to Electrical Power System Dynamic monitoring field, be specifically related to a kind of generator excited system on-line monitoring based on electrical network WAMS (i.e. WAMS) dynamic data and assessment system.
Background technology
Along with the continuous expansion of whole nation interconnected network scale, power system stability problem receives much concern.Wherein, generator excitation control is to maintain that set end voltage is constant and reactive power reasonable distribution between parallel running unit, is also one of most economical effective method improving stability of power system simultaneously.But for a long time, lack a kind of method system generator excited system effectiveness being estimated according to measured data.
Along with phasor measurement unit (PMU) and the development of WAMS (WAMS) technology.The various multidate informations of unit, including excitation system power system stabilizer put into/exit signal, low encourage restriction actuating signal, encourage restriction actuating signal by force, volt hertz limits actuating signal and power system stabilizer output signal and has included WAMS measuring range in, solves wide area synchronous measure and the problem of data integration of power system stabilizer output and electrical network Dynamic Phasors.Data basis is provided for the assessment of generator excited system on-line monitoring.Based on this, the present invention proposes a kind of generator excited system on-line monitoring based on WAMS dynamic data and assessment system.
Summary of the invention
It is an object of the invention to for above-mentioned shortcoming of the prior art, it is provided that a kind of Generator Status, the effect of timely tracking evaluation field regulator power system stabilizer power oscillation damping and on-line evaluation field regulator of can monitoring limits the real-time monitoring and evaluating system with protection act correctness.By the real time on-line monitoring to excitation system fault, can the operation conditions of overall merit generator excited system.
The present invention solves the technical scheme that its goal of the invention used:
A kind of excitation system on-line monitoring based on WAMS dynamic data and assessment system, described excitation system on-line monitoring and assessment system include that generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and protection act correctness evaluation module and visualization man machine interface；It is characterized in that:
Described generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and are all connected with wide area measurement system WAMS with the input of protection act correctness evaluation module, and outfan is connected to visualize man machine interface；
Described generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and read wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module, calculate in real time the evaluation index of each functional module and export described evaluation index and fault warning, fault data to visualizing man machine interface.
Described generator state monitoring module reads wide area measurement system WAMS time series real-time database data, monitor generator terminal voltage in real time, Generator end electric current, generator frequency, generator active power, generator reactive power, when the electric parameters of above-mentioned real-time monitoring exceedes the corresponding electric parameters threshold value of setting or its variable quantity exceedes the corresponding variable quantity threshold value of setting, then think that operation state of generator is abnormal, described on-line monitoring and assessment system send fault warning, and automatically store generator terminal voltage, Generator end electric current, generator excitation voltage, exciter current of generator, generator frequency, generator active power, generator reactive power is in the data of section fault time, draw fault waveform curve, by visualizing man-machine interface display.
Described field regulator power system stabilizer power oscillation damping effect assessment module reads wide area measurement system WAMS time series real-time database data, monitoring generator active power and power system stabilizer output voltage Urpss in real time, when Urpss is more than the alarm threshold set, calculate the average damping ratio of active power response curve, generating unit excitation actuator power system stabilizer is suppressed electricity grid oscillating effect discriminatory analysis, and described field regulator power system stabilizer power oscillation damping effect analysis results is exported to visualizing man machine interface.
Described field regulator limits and reads wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module; internal limitations and relay protective scheme model according to the field regulator prestored calculate; the restriction of the field regulator obtaining the application actual with power plant of corresponding judged result contrasts with protection act switching value; judge whether field regulator exists malfunction, misaction, and by whether there is malfunction, the result of appraisal of misaction export to visualizing man machine interface.
The present invention makes full use of WAMS dynamic data and meets the Guo Tiao center feature about source net dynamic property on-line monitoring technique specification (allocating and transporting (2014) No. 32).Limiting and comprehensive assessment analysis generator excitation system ruuning situation in terms of protection act correctness evaluation module three from generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator, auxiliary dispatching operations staff reflects the whole network generator excited system ruuning situation intuitively, all sidedly.
The present invention can effectively solve the problem that generator excited system is difficult to assess；The system built is as the subelement under the WAMS application of intelligent grid supporting system technology, quickly grasp generator excited system index for management and running personnel to provide convenience, provide more detailed aid decision foundation for analysis generator excitation system further.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of generator excited system on-line monitoring of the present invention and assessment system；
Fig. 2 is that field regulator of the present invention is low encourages restriction action correctness evaluation logic block diagram；
Fig. 3 is that restriction action correctness evaluation logic block diagram encouraged by force by field regulator of the present invention；
Fig. 4 is that field regulator of the present invention volt hertz limits action correctness evaluation logic block diagram.
Detailed description of the invention
Below in conjunction with Figure of description, technical scheme is described in further details.
The present invention is applicable to different power plant, the monitoring and evaluation of different generator excited system.By providing the parameter list of generator excited system, according to the evaluation index of the real-time computing module of generating set related data.Generator excited system on-line monitoring and assessment system belong to a subelement under WAMS application, based on intelligent grid supporting system technology platform, it is that management and running personnel quickly grasp the indices of generator excited system and provide convenience by generator excited system on-line monitoring and assessment system, provides more detailed aid decision foundation for analysis generator excitation system ruuning situation further.
Generator excited system on-line monitoring of the present invention is with assessment system as shown in Figure 1.A kind of generator excited system on-line monitoring based on WAMS dynamic data disclosed by the invention and assessment system include that generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and protection act correctness evaluation module.
Described generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and read wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module, calculate in real time the evaluation index of each functional module and export described evaluation index and fault warning, fault data to visualizing man machine interface.
Described electromotor on-line monitoring module reads wide area measurement system WAMS time series real-time database data, data are carried out the pretreatment of data, standardization process by the electric parameters such as including generator terminal voltage, Generator end electric current, generator frequency, generator active power, generator reactive power.These electric parameters of real time on-line monitoring, when its threshold value exceeding setting or its variable quantity exceed the threshold value of setting, then think that operation state of generator is abnormal, assessment system sends fault warning, and automatically store generator terminal voltage, Generator end electric current, generator excitation voltage, exciter current of generator, generator frequency, generator active power, generator reactive power in the data of section fault time, draw fault waveform curve, by visualizing man-machine interface display.
Described field regulator power system stabilizer power oscillation damping effect assessment module reads wide area measurement system WAMS time series real-time database data, monitoring field regulator power system stabilizer output signal U rpss in real time, when field regulator power system stabilizer output signal U rpss is more than alarm threshold, then it is assumed that the power system generation low-frequency oscillation that electromotor connects.The waveforms such as storage generator terminal voltage, exciter current of generator, generator active power, generator reactive power.According to average damping ratio ζ of active power perturbation response curve calculating generator active power perturbation response curve during low-frequency oscillation:
In formula: N, for calculating periodicity, refers to the periodicity during low-frequency oscillation, i.e. the labelling moment that starts in time judging electrical network generation low-frequency oscillation starts to network re-active power response curve to tend to the periodicity required for steady-state value；P1、P2For first and second power peak occurring during low-frequency oscillation, unit is megawatt (MW)；P2N+1、P2N+2Individual and (2N+2) individual power peak for (2N+1) of appearance during low-frequency oscillation, unit is megawatt (MW)；
Generating unit excitation actuator power system stabilizer is suppressed electricity grid oscillating effect discriminatory analysis by the result of calculation of average damping ratio ζ according to generator active power perturbation response curve: when dampingratioζ is more than the threshold value set, it is believed that the power system stabilizer of actuator can effectively suppress electricity grid oscillating；When dampingratioζ is less than the threshold value set, think that the power system stabilizer suppression electricity grid oscillating effect of actuator is the most notable, the judged result of calculated damping when PSS power oscillation damping effect is stored in the table of commercial storehouse, and by visualizing man-machine interface queries commercialization storehouse table and WAMS historical time sequence library data, with data, form and curve form show described evaluation index, simultaneity factor alarm prompt staff, to understand the effect of field regulator power system stabilizer power oscillation damping in time, the power system stabilizer of inhibition difference is carried out parameters revision.Damping ratio threshold value is independently to be set by those skilled in the art from shunt excitation static excitation system technical conditions according to large turbo-type generator.For large turbo-type generator, the preferred described damping ratio threshold value of the application elects 0.1 as.Described field regulator limits and reads wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module, and WAMS time series real-time database data carry out the pretreatment of data, standardization process.According to the generating set related data after processing, calculate according to field regulator protection and circumscription logic model, obtain corresponding field regulator and limit and protect whether action.With from wide area measurement system WAMS time series real-time database digital independent to the field regulator protection of actual application contrast with restriction step switch amount, thus judge whether field regulator exists malfunction, misaction.Field regulator limits and includes with protection act correctness evaluation low encouraging restriction and protection act correctness evaluation, encouraging restriction and protection correctness evaluation, volt hertz limit and protection correctness evaluation, are limited by above-mentioned field regulator and protection act evaluation index stores in the table of commercial storehouse with record form, by the man-machine interface display of visualization by force.
Low encouraging limits action correctness decision logic as shown in Figure 2, wherein Pe be active power, Pe01 be active power 0.1s filter value, Qe be reactive power, Qe01 be reactive power 0.1s filter value, P1, P2, P3, P4, P5 are that low restrictive curve of encouraging is gained merit intersection point, and Q1, Q2, Q3, Q4, Q5 are low to encourage the idle intersection point of restrictive curve.According to active power 0.1s filter value Pe01, obtain low reactive power marginal value Qe encouraged on restrictive curveCriticalIf reactive power 0.1s filter value is less than or equal to reactive power marginal value QeCritical, then meet low restrictive condition of encouraging, the low restriction signalizing activity of encouraging of assessment system, otherwise.This result is encouraged restriction warning signal contrast, if both actions are inconsistent with the low of WAMS system, then it is assumed that " low encouraging limits remarkable action ", assessment system sends alarm simultaneously.Encourage by force restriction action correctness decision logic as shown in Figure 3, wherein If be exciting current perunit value, If01 be the 0.1s filter value of exciting current perunit value, Lifr is for encouraging by force top value electric current, Ifx is long-term current value, Q1 is for encourage the time by force, NQY is rated thermal amount, and computing formula is: NQY=[encourage by force top value electric current * and encourage by force top value electric current-1.0*1.0] * encourages the time by force, and If01 is the filter value of exciting current 0.1s.When exciting current If is more than 1.1p.u., proceed by and encourage by force inverse time lag calculating, and the actual caloric value of the i.e. rotor of the result of calculation obtained is compared with rated thermal amount NQY, when actual caloric value is more than rated thermal amount, then meet and encourage by force restrictive condition, assessment system encourages by force restriction signalizing activity, otherwise.The restriction warning signal of encouraging by force of this result with WAMS system is contrasted, if both actions are inconsistent, then it is assumed that " encouraging by force restriction remarkable action ", assessment system sends alarm simultaneously.Volt hertz action correctness decision logic as shown in Figure 4, wherein Ut be generator terminal voltage perunit value, Fr be generator frequency perunit value, M1 be that specified magnetic is close, M2 be the close top value of magnetic, M3 for limiting involution, C2 is operation time limit.Calculate the difference of Ut/Fr and the close M1 of specified magnetic, and difference is integrated, when its integration and more than (M2-M1) * C2*25 time (program loop is 40ms), or Ut/Fr continues more than 2s more than M2 state, then meet volt hertz restrictive condition, assessment system volt hertz limits signalizing activity, otherwise.The volt hertz of this result with WAMS system is limited warning signal contrast, if both actions are inconsistent, then it is assumed that " volt hertz limits remarkable action ", assessment system sends alarm simultaneously.
Claims (7)
1. generator excited system on-line monitoring based on WAMS dynamic data and an assessment system, described excitation system on-line monitoring and assessment system include that generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and protection act correctness evaluation module and visualization man machine interface；It is characterized in that:
Described generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and are all connected with wide area measurement system WAMS with the input of protection act correctness evaluation module, and outfan is connected to visualize man machine interface；
Described generator state monitoring module, field regulator power system stabilizer power oscillation damping effect assessment module, field regulator limit and read wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module, calculate in real time the evaluation index of each functional module and export described evaluation result and fault warning, fault data to visualizing man machine interface.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 1 and assessment system, it is characterised in that:
Described generator state monitoring module reads wide area measurement system WAMS time series real-time database data, monitor generator terminal voltage in real time, Generator end electric current, generator frequency, generator active power, generator reactive power, when the electric parameters of above-mentioned real-time monitoring exceedes the corresponding electric parameters threshold value of setting or its variable quantity exceedes the corresponding variable quantity threshold value of setting, then think that operation state of generator is abnormal, described on-line monitoring and assessment system send fault warning, and automatically store generator terminal voltage, Generator end electric current, generator excitation voltage, exciter current of generator, generator frequency, generator active power, generator reactive power is in the data of section fault time, draw fault waveform curve, by visualizing man-machine interface display.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 1 and assessment system, it is characterised in that:
Described field regulator power system stabilizer power oscillation damping effect assessment module reads wide area measurement system WAMS time series real-time database data, monitoring generator active power and power system stabilizer output voltage Urpss in real time, when Urpss is more than the alarm threshold set, calculate the average damping ratio of active power response curve, generating unit excitation actuator power system stabilizer is suppressed electricity grid oscillating effect discriminatory analysis, and described field regulator power system stabilizer power oscillation damping effect analysis results is exported to visualizing man machine interface.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 3 and assessment system, it is characterised in that:
Generating unit excitation actuator power system stabilizer is suppressed electricity grid oscillating effect discriminatory analysis by the result of calculation of average damping ratio ζ according to generator active power response curve: when dampingratioζ is more than the damping ratio threshold value set, it is believed that the power system stabilizer of actuator can effectively suppress electricity grid oscillating；When dampingratioζ is less than the damping ratio threshold value set, it is believed that the power system stabilizer suppression electricity grid oscillating effect of actuator is the most notable；
The above-mentioned discriminatory analysis result to generating unit excitation actuator power system stabilizer suppression electricity grid oscillating effect is stored in the table of commercial storehouse, and by visualizing man-machine interface queries commercialization storehouse table and WAMS historical time sequence library data, show with data, form and curve form, simultaneity factor alarm prompt staff, to understand the effect of field regulator power system stabilizer power oscillation damping in time, the power system stabilizer of inhibition difference is carried out parameters revision.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 4 and assessment system, it is characterised in that:
Described damping ratio threshold value sets from shunt excitation static excitation system technical conditions according to large turbo-type generator.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 5 and assessment system, it is characterised in that:
Described damping ratio threshold value elects 0.1 as.
Generator excited system on-line monitoring based on WAMS dynamic data the most according to claim 1 and assessment system, it is characterised in that:
Described field regulator limits and reads wide area measurement system WAMS time series real-time database data with protection act correctness evaluation module; internal limitations and relay protective scheme model according to the field regulator prestored calculate; the restriction of the field regulator obtaining the application actual with power plant of corresponding judged result contrasts with protection act switching value; judge whether field regulator exists malfunction, misaction, and by whether there is malfunction, the result of appraisal of misaction export to visualizing man machine interface.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383311A (en) * | 2016-11-25 | 2017-02-08 | 国网浙江省电力公司电力科学研究院 | Method for online determining generator excitation limitation performance |
| CN108199350A (en) * | 2017-11-27 | 2018-06-22 | 上海电气电站设备有限公司 | A kind of generator overexcitation limits guard method |
| CN108681817A (en) * | 2018-05-17 | 2018-10-19 | 中电普瑞电力工程有限公司 | A kind of excitation system performance estimating method, device and storage medium |
| CN109256806A (en) * | 2018-10-26 | 2019-01-22 | 中国电力科学研究院有限公司 | A kind of low based on Hybrid Real Time Simulation encourages long-term method for establishing model and system in limitation |
| CN109308529A (en) * | 2018-10-11 | 2019-02-05 | 国网山东省电力公司电力科学研究院 | A kind of DCgenerator motor field function synthesized method of evaluating performance applied in net source platform |
| CN109946605A (en) * | 2019-04-02 | 2019-06-28 | 中交机电工程局有限公司 | The on-line monitoring system of dynamic characteristic in motor starting procedure |
| CN112711237A (en) * | 2020-12-29 | 2021-04-27 | 华润电力技术研究院有限公司 | Automatic control quality online evaluation method and system for thermal power generating unit |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741023A (en) * | 1986-12-23 | 1988-04-26 | General Electric Company | On-line test and diagnostic system for power system stabilizer |
| CN101335457A (en) * | 2007-06-29 | 2008-12-31 | 通用电气公司 | Power system stabilizer and method |
| CN101944766A (en) * | 2010-06-01 | 2011-01-12 | 中国电力科学研究院 | Operation and safety monitoring simulation system for power system |
| CN202166727U (en) * | 2011-01-11 | 2012-03-14 | 华北电力科学研究院有限责任公司 | System for monitoring characteristic of generating set excitation system |
| CN103516278A (en) * | 2013-09-26 | 2014-01-15 | 国家电网公司 | Excitation system full-function-performance simulation system based on MATLAB |
| CN104242462A (en) * | 2014-10-08 | 2014-12-24 | 中国南方电网有限责任公司 | WAMS (wide area measurement system) and SCADA (supervisory control and data acquisition) integrated data based grid forced oscillation source positioning method |
| CN104236704A (en) * | 2014-09-19 | 2014-12-24 | 华北电力大学 | Method and system for monitoring sub-synchronous oscillation (SSO) and torsional vibration of shaft system of steam turbine generator unit |
| CN104730458A (en) * | 2015-04-01 | 2015-06-24 | 贵州电力试验研究院 | Method for monitoring state of generator excitation system |
| CN104898455A (en) * | 2015-03-31 | 2015-09-09 | 江苏省电力公司 | Dynamic data-based generator moment of inertia identification system |
| CN104951900A (en) * | 2015-06-30 | 2015-09-30 | 贵州电力试验研究院 | Performance evaluation device for excitation regulator and PSS (power system stabilizer) of excitation regulator |
-
2016
- 2016-03-11 CN CN201610140593.0A patent/CN105823985B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741023A (en) * | 1986-12-23 | 1988-04-26 | General Electric Company | On-line test and diagnostic system for power system stabilizer |
| CN101335457A (en) * | 2007-06-29 | 2008-12-31 | 通用电气公司 | Power system stabilizer and method |
| CN101944766A (en) * | 2010-06-01 | 2011-01-12 | 中国电力科学研究院 | Operation and safety monitoring simulation system for power system |
| CN202166727U (en) * | 2011-01-11 | 2012-03-14 | 华北电力科学研究院有限责任公司 | System for monitoring characteristic of generating set excitation system |
| CN103516278A (en) * | 2013-09-26 | 2014-01-15 | 国家电网公司 | Excitation system full-function-performance simulation system based on MATLAB |
| CN104236704A (en) * | 2014-09-19 | 2014-12-24 | 华北电力大学 | Method and system for monitoring sub-synchronous oscillation (SSO) and torsional vibration of shaft system of steam turbine generator unit |
| CN104242462A (en) * | 2014-10-08 | 2014-12-24 | 中国南方电网有限责任公司 | WAMS (wide area measurement system) and SCADA (supervisory control and data acquisition) integrated data based grid forced oscillation source positioning method |
| CN104898455A (en) * | 2015-03-31 | 2015-09-09 | 江苏省电力公司 | Dynamic data-based generator moment of inertia identification system |
| CN104730458A (en) * | 2015-04-01 | 2015-06-24 | 贵州电力试验研究院 | Method for monitoring state of generator excitation system |
| CN104951900A (en) * | 2015-06-30 | 2015-09-30 | 贵州电力试验研究院 | Performance evaluation device for excitation regulator and PSS (power system stabilizer) of excitation regulator |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383311A (en) * | 2016-11-25 | 2017-02-08 | 国网浙江省电力公司电力科学研究院 | Method for online determining generator excitation limitation performance |
| CN106383311B (en) * | 2016-11-25 | 2018-12-11 | 国网浙江省电力有限公司电力科学研究院 | A kind of online judgment method of generator excitation limiting performance |
| CN108199350A (en) * | 2017-11-27 | 2018-06-22 | 上海电气电站设备有限公司 | A kind of generator overexcitation limits guard method |
| CN108199350B (en) * | 2017-11-27 | 2019-11-05 | 上海电气电站设备有限公司 | A kind of generator overexcitation limitation guard method |
| CN108681817A (en) * | 2018-05-17 | 2018-10-19 | 中电普瑞电力工程有限公司 | A kind of excitation system performance estimating method, device and storage medium |
| CN108681817B (en) * | 2018-05-17 | 2021-08-06 | 中电普瑞电力工程有限公司 | Excitation system performance evaluation method and device and storage medium |
| CN109308529A (en) * | 2018-10-11 | 2019-02-05 | 国网山东省电力公司电力科学研究院 | A kind of DCgenerator motor field function synthesized method of evaluating performance applied in net source platform |
| CN109256806A (en) * | 2018-10-26 | 2019-01-22 | 中国电力科学研究院有限公司 | A kind of low based on Hybrid Real Time Simulation encourages long-term method for establishing model and system in limitation |
| CN109256806B (en) * | 2018-10-26 | 2021-09-17 | 中国电力科学研究院有限公司 | Low excitation limit medium and long term model building method and system based on digital-analog hybrid real-time simulation |
| CN109946605A (en) * | 2019-04-02 | 2019-06-28 | 中交机电工程局有限公司 | The on-line monitoring system of dynamic characteristic in motor starting procedure |
| CN109946605B (en) * | 2019-04-02 | 2021-02-02 | 中交机电工程局有限公司 | On-line monitoring system for dynamic characteristics in starting process of motor |
| CN112711237A (en) * | 2020-12-29 | 2021-04-27 | 华润电力技术研究院有限公司 | Automatic control quality online evaluation method and system for thermal power generating unit |
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