Electromagnetic Transient Equivalent Modeling Method for Wind Power Clusters Adapted to Expected Faults

doi:10.16182/j.issn1004731x.joss.23-FZ0791

Abstract

Abstract:

Based on an existing equivalent modeling method for individual wind farm, an iterative simulation-based equivalent modeling method for wind power clusters is proposed and a software development for equivalent modeling of wind power clusters is completed by using CloudPSS-XStudio suite.The system integrates expected fault selection, equivalent parameter calculation and result analysis, which provides support for dynamic security assessment of power systems with large-scale wind power clusters. The equivalent method takes the average wind speed of each wind farm and the expected faults as input, and obtains the cluster index of each wind turbine based on the iterative simulation of the equivalent model. Moreover, the clustering equivalent model is formed based on the cluster index. The correctness of the method is verified based on the example of IEEE 39-node system integrated with a wind power cluster.

Key words: direct-driven permanent magnet synchronous generator(PMSG)-based wind farm, dynamic equivalent method, dynamic security assessment, power systems, CloudPSS platform

CLC Number:

TP391.9

Li Dongsheng, Liu Ye, Song Yankan, Shen Chen. Electromagnetic Transient Equivalent Modeling Method for Wind Power Clusters Adapted to Expected Faults[J]. Journal of System Simulation, 2023, 35(10): 2101-2112.

Figures/Tables 20

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风电场编号	第1次迭代	第2次迭代
1	0.102 9	0.102 8
2	0.102 9	0.102 8
3	0.102 9	0.102 8
4	0.102 9	0.102 8
5	0.106 8	0.106 7
6	0.106 8	0.106 7
7	0.102 9	0.102 8
8	0.104 9	0.104 8
9	0.104 9	0.104 8
10	0.104 9	0.104 7

分群	风机编号
1	–
2	1，2，7，8，9，13，14，19，20，21，26，27，28，32，33，38，39，44，45，46，50，51，52，53，56，57，58，59，62，63，68，69，70，74，75，76，80，81，82，87，88，91，94，95，96
3	3，4，5，6，10，11，12，15，16，17，18，22，23，24，25，29，30，31，34，35，36，37，40，41，42，43，47，48，49，54，55，60，61，64，65，66，67，71，72，73，77，78，79，83，84，85，86，89，90，92，93，97，98，99，100

算例编号	主要参数	详细模型	本文模型	单机等值模型
1	仿真时间/s	4 632	18.30	10.50
1	等值误差/%	–	1.67	5.85
2	仿真时间/s	4 430	22.10	9.70
2	等值误差/%	–	1.31	5.53

步骤	调用模块	功能
1	算例管理模块	指定研究的原始算例及预想故障集合
2	参数计算模块	在给定PCC电压跌落情况下计算等值机参数
3	仿真调用模块	调用电磁暂态仿真对预想故障进行仿真分析
4	结果展示模块	输出等值机参数及功率特性

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