适用于频率和电压动态分析的构网型新能源场站聚合建模

doi:10.16183/j.cnki.jsjtu.2023.061

上海交通大学学报 ›› 2024, Vol. 58 ›› Issue (10): 1544-1553.doi: 10.16183/j.cnki.jsjtu.2023.061

• 新型电力系统与综合能源 • 上一篇下一篇

适用于频率和电压动态分析的构网型新能源场站聚合建模

葛琛琛¹, 陈俊儒¹(), 徐森², 常喜强², 毛善祥¹, 朱荣伍³

1.新疆大学电气工程学院,乌鲁木齐 830047
2.国网新疆电力有限公司,乌鲁木齐 830011
3.哈尔滨工业大学(深圳) 机电与自动化工程学院,广东深圳 518000

收稿日期:2023-02-22 修回日期:2023-07-14 接受日期:2023-07-18 出版日期:2024-10-28 发布日期:2024-11-01
通讯作者: 陈俊儒,副教授,博士生导师;E-mail: junru.chen@xju.edu.cn.
作者简介:葛琛琛(1997—),博士生,从事电力系统建模与仿真技术研究.
基金资助:
新疆维吾尔自治区科技厅重大科技专项项目(2022A01004-1)

Aggregation Modelling of Grid-Forming Renewable Power Plant for Frequency and Voltage Dynamic Analysis

GE Chenchen¹, CHEN Junru¹(), XU Sen², CHANG Xiqiang², MAO Shanxiang¹, ZHU Rongwu³

1. School of Electrical Engineering, Xinjiang University, Urumqi 830047, China
2. State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830011, China
3. School of Mechanical Engineering and Automation, Harbin Institute of Technology (Shenzhen), Shenzhen 518000, Guangdong, China

Received:2023-02-22 Revised:2023-07-14 Accepted:2023-07-18 Online:2024-10-28 Published:2024-11-01

摘要/Abstract

摘要：

构网型新能源场站可模拟传统火力发电厂相关特性,具有主动支撑电网频率和电压的功能.提出一种适用于新型电力系统频率和电压稳定性分析的构网型新能源场站聚合模型,并分析场站整体运行特性,提出聚合模型参数识别与选取方法.所提聚合模型能够准确反映新能源场站与电网交互下的动态过程,并保障了较快的仿真速率.与MATLAB/Simulink中构网型新能源场站电磁暂态全拓扑模型进行比较,验证了所提聚合模型的有效性.基于IEEE 39母线系统的案例分析验证了所提聚合模型在电力系统频率和电压稳定性仿真分析中的准确性和快速性.

关键词: 构网型变流器, 新能源场站, 聚合模型, 系统稳定性

Abstract:

Renewable power plant based on the grid-forming converter has a similar performance with the traditional thermal power plant on the function of active support for the frequency and voltage in the power system. An aggregation model is proposed for the frequency and voltage stability analysis of new power system, the overall operation characteristics of the plant are analyzed, and a method for identifying and selecting the parameters of the aggregation model is proposed. The proposed aggregation model can accurately reflect the dynamic process of the interaction between the renewable power plant and the grid, and ensure a quick simulation rate. In comparison with the electromagnetic transient model for grid-forming renewable power plant, the effectiveness of the proposed aggregation model is verified in MATLAB/Simulink. The accuracy and rapidity of the proposed aggregation model is verified in the frequency and voltage stability simulation analysis of power system based on the case study in the IEEE 39 bus system.

Key words: grid-forming converter, renewable power plant, aggregation model, system stability

中图分类号:

TM743

葛琛琛, 陈俊儒, 徐森, 常喜强, 毛善祥, 朱荣伍. 适用于频率和电压动态分析的构网型新能源场站聚合建模[J]. 上海交通大学学报, 2024, 58(10): 1544-1553.

GE Chenchen, CHEN Junru, XU Sen, CHANG Xiqiang, MAO Shanxiang, ZHU Rongwu. Aggregation Modelling of Grid-Forming Renewable Power Plant for Frequency and Voltage Dynamic Analysis[J]. Journal of Shanghai Jiao Tong University, 2024, 58(10): 1544-1553.

图/表 11

图1

图2

表1

构网型新能源单元和聚合模型参数(单机无穷大系统)

单元	M_p.u.	D_p.u.	$K d p . u .$	$K v p . u .$	$X g p . u .$
单元一	0.1571	15.7080	4.9951	0.5000	0.1280
单元二	0.0942	25.1327	4.9951	0.5000	0.1280
单元三	0.0628	25.1327	4.9951	0.5000	0.1280
聚合模型	0.3142	68.1726	14.9854	0.4984	0.0427

表1

图3

图4

图5

图6

表2

构网型新能源单元和聚合模型参数(系统闭环)

单元	$P p . u . *$	M_p.u.	D_p.u.	$K d p . u .$	$K v p . u .$	$L g p . u .$
NE1~NE3	80	10.00	200	30.0	0.9	0.0600
NE4~NE6	100	9.00	100	20.0	0.9	0.0900
NE7~NE10	125	8.25	225	7.5	0.9	0.0400
类型一聚合	240	30.00	600	90.0	0.9	0.0200
类型二聚合	300	27.00	300	60.0	0.9	0.0300
类型三聚合	460	33.00	900	30.0	0.9	0.0100
全部聚合	1 000	90.00	1800	180.0	0.9	0.0055

表2

表3

图7

图8

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模型	电网频率事件仿真时间/s	电网电压事件仿真时间/s
全模型	24.335	24.8850
同类聚合模型	20.182	21.7243
整场聚合模型	15.569	17.2028

适用于频率和电压动态分析的构网型新能源场站聚合建模

Aggregation Modelling of Grid-Forming Renewable Power Plant for Frequency and Voltage Dynamic Analysis

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