A Synchronous Iterative Method of Power Flow in Inter-Connected Power Grids Considering Privacy Preservation: A CPS Perspective

2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2) Pub Date : 2020-10-30 DOI:10.1109/EI250167.2020.9347366

Nianfeng Tian, Qinglai Guo, Hongbin Sun, Jianye Huang

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Abstract

The increasing development of smart grid facilitates that modern power grids inter-connect with each other and form a large power system, making it possible and advantageous to conduct coordinated power flow among several grids. The communication burden and privacy issue are the prominent challenges in the application of synchronous iteration power flow method. In this paper, a synchronous iterative method of power flow in inter-connected power grid considering privacy preservation is proposed. By establishing the masked model of power flow for each sub-grid, the synchronous iteration is conducted by gathering the masked model of sub-grids in the coordination center and solving the masked correction equation in a concentration manner at each step. Generally, the proposed method can concentrate the major calculation of power flow on the coordination center, reduce the communication burden and guarantee the privacy preservation of sub-grids. A case study on IEEE 118-bus test system demonstrate the feasibility and effectiveness of the proposed methodology.

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考虑隐私保护的互联电网潮流同步迭代方法:CPS视角

智能电网的日益发展，使现代电网相互连接，形成一个大的电力系统，使多个电网之间的协调潮流成为可能和有利的。通信负担和隐私问题是同步迭代潮流法应用中面临的突出挑战。提出了一种考虑隐私保护的互联电网潮流同步迭代方法。通过建立各子网潮流的掩模模型，在协调中心收集子网的掩模模型，每步集中求解掩模修正方程，进行同步迭代。通常，该方法可以将主要潮流计算集中在协调中心，减少通信负担，保证子电网的隐私保护。以IEEE 118总线测试系统为例，验证了该方法的可行性和有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 IEEE 4th Conference on Energy Internet and Energy System Integration (EI2)

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