摘要
随着电网用电负荷的增加,因无功功率支撑不足,直流受端电压稳定问题越来越突出。过往文献解决这一问题主要从系统结构设计层面入手,更偏向于事前预防方面,对于事后控制特别是措施执行这一环节关注较少。稳控装置是控制措施的最终出口处,其定值整定的合理性决定了出口措施的有效性。目前与此相关研究不够系统化,实际定值制定理论依据较为薄弱。本文对稳控装置控制策略和定值优化问题进行了研究,面向不同场景提出了相应的定值整定方向及目标,随后给出了定值优化的总体流程,为定值设定工作提供理论支撑。最后通过南方电网实际算例验证了其有效性和实用性。
With the increase of power load in power grid,the problem of voltage stability in DC receiving-end becomes more and more serious because of the lack of reactive power.In the past literature,this problem has been solved mainly on the system structure design level,more inclined to the pre-prevention aspect,and little attention has been paid to the post control,especially the implementation of measures.Stability control device is the final outlet of control measures,and the rationality of setting value determines the effectiveness of control command.At present,the related research is not systematic enough,and the theoretical basis of actual setting is relatively weak.This paper studies the control strategy and the optimization of setting value for stability control device,puts forward the corresponding setting direction and target for different scenarios,and then gives the overall process of setting value optimization,which can provide theoretical support for the setting work.Finally,the effectiveness and practicability of the proposed method are verified by a China Southern Power Grid practical example.
作者
叶萌
谢宇翔
李晶
赵宏伟
李诗旸
YE Meng;XIE Yuxiang;LI Jing;ZHAO Hongwei;LI Shiyang(Guangzhou Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Guangzhou 510620,China;Electric Power Research Institute,CSG,Guangzhou 510663,China)
出处
《南方电网技术》
CSCD
北大核心
2021年第6期20-26,共7页
Southern Power System Technology
基金
广东电网有限责任公司广州供电局项目“直流受端负荷密集区域电网电压稳定特性及应对措施研究”(GZHKJXM20180101)。
关键词
电压稳定
受端电网
稳控装置
定值优化
voltage stability
receiving-end power grid
stability control device
setting value optimization
