摘要
在考虑电力系统不同类型元件参数取值具有不确定性的前提下,提出一种电力系统潜在并联谐波谐振监测点的优化配置方法。首先,基于谐波谐振模态分析介绍了并联谐波谐振可观性的相关概念;然后,根据不同类型元件参数的随机模型,应用谐波谐振模态分析法和蒙特卡洛法,构建了概率性谐振监测矩阵;进而,定义并量化了谐振可观性指标和可观性-成本权衡因子,并在此基础上提出了谐波谐振监测点优化配置方法。该方法可以使配置方案在所需监测装置数满足投资成本限制的条件下,实现谐波谐振可观性和投资成本经济性两者之间的协调优化。最后,基于IEEE 30节点测试系统对所提方法进行了仿真分析,并将所提方法与传统方法得到的配置结果进行了比较,验证了所提方法的合理性与优越性。
On the premise of considering uncertainties of the parameters of different types of components in the power system,an optimal placement method for the potential parallel harmonic resonance monitoring points in the power system is proposed.Firstly,based on the harmonic resonance mode analysis(HRMA),the concept of observability of parallel harmonic resonance is introduced.Then,according to the random model of different types of component parameters,the probabilistic resonance monitoring matrix is constructed by using HRMA approach and Monte Carlo approach.Furthermore,the resonance observability index and observability-cost trade-off factor are defined and quantified,and on this basis,an optimal placement method for harmonic resonance monitoring points is proposed.This method can enable the placement scheme to achieve the coordination and optimization between the observability of harmonic resonance and the economics of investment cost under the condition that the number of required monitoring devices meets the investment cost limit.Finally,the proposed method is simulated and analyzed based on the IEEE 30-bus test system.The placement results obtained by the proposed method and traditional methods are compared to verify the rationality and superiority of the proposed method.
作者
蒋海玮
徐永海
何志轩
陶顺
常潇
王金浩
JIANG Haiwei;XU Yonghai;HE Zhixuan;TAO Shun;CHANG Xiao;WANG Jinhao(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University),Beijing 102206,China;Electric Power Research Institute of State Grid Shanxi Electric Power Co.,Ltd.,Taiyuan 030001,China)
出处
《电力系统自动化》
EI
CSCD
北大核心
2021年第23期141-151,共11页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(51777066)
国网山西省电力公司科技项目(52053018000z)的资助。
关键词
并联谐波谐振
监测点优化配置
不确定性
谐振模态分析
蒙特卡洛法
概率性谐振监测矩阵
可观性指标
权衡因子
parallel harmonic resonance
optimal placement of monitoring points
uncertainty
resonance mode analysis
Monte Carlo approach
probabilistic resonance monitoring matrix
observability index
trade-off factor
