针对预想故障的风电集群电磁暂态等值建模方法

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

摘要/Abstract

摘要：

基于现有针对单个风电场的等值建模方法，提出一种适用于风电集群的等值建模方法，利用CloudPSS-XStudio套件完成了风电集群等值建模系统开发，该系统将预想故障选择、等值参数计算和结果分析进行了集成，为含大规模风电集群的电力系统的动态安全分析提供了支撑。以各风电场平均风速以及预想故障作为输入，基于等值模型的迭代仿真得到各个风电机组的分群指标，并完成对风电集群的分群等值建模。以某实际风电集群拓扑接入IEEE 39节点系统作为测试算例，验证了所提方法的正确性。

关键词: 直驱风电场, 动态等值建模, 动态安全评估, 电力系统, CloudPSS平台

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

中图分类号:

TP391.9

李东晟,刘晔,宋炎侃等 . 针对预想故障的风电集群电磁暂态等值建模方法[J]. 系统仿真学报, 2023, 35(10): 2101-2112.

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

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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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