LI Shuangwei;XU Yong;YANG Chuan;SUN Xincheng;HU Xueman;ZHANG Congyue;

• 1:State Grid Jiangsu Electric Power Co.
• 2:Ltd.
• 3:State Grid Yangzhou Power Supply Company
• 4:School of Electrical Engineering

Abstract：

Current practices for allocating reactive power compensation devices often neglect the comprehensive economic performance arising from the coordinated operation of these devices with other dispatchable resources in active distribution networks(ADNs). To address this, this paper proposes an optimal strategy for reactive power compensation device allocation and voltage optimization in active distribution networks. A bi-level model integrating allocation and operation is established. The upper-level allocation model aims to minimize the investment and maintenance costs of reactive power compensation devices as well as the total system operating cost. The locations and capacities of the compensation devices are then generated and passed to the lower-level model. The lower-level operation model targets minimizing the total operating cost and voltage deviation under the coordinated operation of reactive power compensation devices and dispatchable resources in ADNs. The multi-objective optimization problem is solved based on the information provided by the upper level. The results were then fed back to the upper level to guide iterative optimization process. Case studies on the modified IEEE 33-node system demonstrates that the proposed allocation scheme for reactive power compensation devices ensures both the overall economic performance in allocation and operation and voltage quality of the active distribution networks.

Key Words： ADNs;reactive power compensation;optimal allocation;voltage deviation;comprehensive economic performance

Abstract:

Keywords:

Foundation: 国网江苏省电力有限公司科技项目（J2024176）

Authors: LI Shuangwei;XU Yong;YANG Chuan;SUN Xincheng;HU Xueman;ZHANG Congyue;

DOI: 10.19585/j.zjdl.202603006

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