Voltage-dependent P-Q Reserve Capacity Evaluation for TSO-DSO Interface Considering Uncertainties of DGs and FLs

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外文摘要：Increasing distributed generators(DGs)and flexible loads(FLs)enable distribution systems to provide both active and reactive power reserves(P-Q reserves)in supporting the frequency and voltage regulations of transmission systems.How-ever,such requirements at the interface between the transmission system operator(TSO)and distribution system operator(DSO)affect the distribution system operation security,considering the uncertainties of DGs and FLs.To exploit the reserve potential of distribution systems,this paper investigates the voltage-dependent P-Q reserve capacity(V-PQRC)of such types of distribution systems.V-PQRC reflects the feasible space of P-Q reserves that the DSO can provide to the TSO taking the voltage deviation limit at TSO-DSO interface into consideration,while ensuring the distribution system operation security under uncertainties of DGs and FLs.An evaluation method for V-PQRC at the TSO-DSO interface is proposed.To improve the robust performance of the evaluation method,the DG uncertainty is captured by a generalized ambiguity set and the FL uncertainty is addressed by designing a constrained sliding mode controller(CSMC).Three objectives are considered in the evaluation,i.e.,P reserve capacity,Q reserve capacity,and the voltage deviation limit at the TSO-DSO interface.Then,a multi-objective optimization model integrating the generalized robust chance-constrained optimization and CSMC(GRCC-CSMC)is established for V-PQRC evaluation to obtain the Pareto optimal reserve schemes.Finally,a non-approximated selecting(NAS)method is proposed to build up a simplified V-PQRC linear model,which can be convenient to apply in the transmission-distribution system coordination.Simulation results reveal that the V-PQRC evaluation method can achieve a good performance of accuracy and robustness against uncertainties.

外文关键词：

Generalized robust chance-constrained opti-mizationreserve capacity evaluationsliding mode controltransmission-distribution system coordinationvoltage-dependent P-Q reserve capacity

作者：

Yeyan Xu、Liangzhong Yao、Tianjiao Pu、Siyang Liao、Fan Cheng、Ye Li、Xinying Wang

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作者单位：

School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China

China Electric Power Research Institute,Beijing 100192,China

China Electric Power Research Institute,Beijing 100085,China

基金：

National Key R&D Program of ChinaScience and Technology Project of SGCC(State Grid Corporation of China):The key Technologies for Electric Internet of Things

项目编号：

2020YFB0905900SGTJDK00DWJS2100042

出版年：

2024

DOI：

10.17775/CSEEJPES.2022.00360

中国电机工程学会电力与能源系统学报(英文版)

中国电机工程学会

中国电机工程学会电力与能源系统学报(英文版)

CSTPCDEI

ISSN：2096-0042

年,卷(期)：2024.10(5)