电力系统保护与控制2024，Vol.52Issue(13)：1-12,12.DOI:10.19783/j.cnki.pspc.240027
基于故障穿越演化特性的SVG电磁暂态模型测辨方法
Identification method of an electromagnetic transient model for an SVG based on fault ride-through evolution characteristics
摘要
Abstract
Establishing an accurate white box electromagnetic transient simulation model for static var generators(SVGs)is a prerequisite for analyzing the voltage stability characteristics of the power grid.However,existing models often use generic control structures and parameters because of confidentiality issues of the SVG controller,resulting in significant discrepancies between transient output characteristics and actual performance.To solve these issues,this paper proposes an electromagnetic transient model identification method based on the fault ride-through(FRT)evolution characteristics of the SVG manufacturer packaged black box model.First,this paper analyzes topological characteristics of the manufacturer's black box model,and clarifies its FRT evolution characteristics through multi-condition FRT response testing.Then,by analyzing the impacts and pathways of transient switching processes of different control parts of the SVG,a controller structure identification method based on the evolution form of the FRT response is proposed.By analyzing the influencing mechanism of different SVG control parameters on FRT response characteristics by stages,a step-by-step identification method for controller parameters based on FRT response amplitude is proposed,forming a white box electromagnetic transient model identification method system for the SVG.Finally,a comparison is made between the established white box simulation models of different models and the corresponding manufacturer's black box models in terms of FRT response characteristics.This finds that the error is much smaller than the allowable error of the current standard,proving the effectiveness and universality of the proposed method.关键词
SVG/厂家黑盒模型/故障穿越响应特性/电磁暂态模型/控制器结构辨识/控制器参数辨识Key words
static var generator(SVG)/manufacturer's black box model/fault ride-through response characteristics/electromagnetic transient model/controller structure identification/controller parameter identification引用本文复制引用
夏楠,罗傲京,晁璞璞,张青蕾,李卫星,王潇平..基于故障穿越演化特性的SVG电磁暂态模型测辨方法[J].电力系统保护与控制,2024,52(13):1-12,12.基金项目
This work is supported by the National Natural Science Foundation of China(No.52377077). 国家自然科学基金项目资助(52377077) （No.52377077）
国网陕西省电力有限公司科技项目资助"新能源场站SVG半实物仿真及控制策略优化研究"(5226KY22000F) （5226KY22000F）
