| 引用本文: | 金国彬,石 超,李国庆,等.基于网络矩阵的交直流混合配电网潮流计算[J].电力系统保护与控制,2020,48(24):52-61.[点击复制] |
| JIN Guobin,SHI Chao,LI Guoqing,et al.Power flow calculation of an AC-DC hybrid distribution network based on a network matrix[J].Power System Protection and Control,2020,48(24):52-61[点击复制] |
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| 摘要: |
| 为了准确分析含有分布式可再生能源及具有发-用-储一体化新型柔性负荷的复杂大系统的潮流分布，针对具有离散性、动态性、非线性、多目标性和不确定性等特点的现代城市配电网，给出一种基于网络矩阵的交直流混合配电网潮流计算方法。首先，根据PWM调制原理给出电压源转换器(VSC)的稳态潮流模型。然后，通过二进制描述的网络矩阵，建立交直流混合配电网拓扑结构的潮流计算模型。进而，针对不同控制策略修改雅可比矩阵，并基于牛顿拉夫逊法求解潮流模型。最后给出了两个算例，针对该方法与PSCAD仿真的结果进行比较分析，验证了所提的潮流计算模型的正确性、灵活性和收敛性。 |
| 关键词: 交直流混合配电网 控制策略 网络矩阵 潮流计算 雅可比矩阵 |
| DOI：DOI: 10.19783/j.cnki.pspc.200148 |
| 投稿时间：2020-02-14修订日期：2020-04-03 |
| 基金项目:国家电网公司总部科技项目资助(5102- 201999343A-0-0-00) |
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| Power flow calculation of an AC-DC hybrid distribution network based on a network matrix |
| JIN Guobin,SHI Chao,LI Guoqing,PAN Di,LIU Zuoming |
| (1. Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology,
Ministry of Education (Northeast Electric Power University), Jilin 132000, China;
2. State Grid Jilin Electric Power Company Research Institute, Changchun 130000, China) |
| Abstract: |
| It is important to accurately analyze the power flow distribution of complex large-scale systems containing distributed renewable energy and a new flexible load with integrated generation-use-storage. Considering modern urban power distribution networks with characteristics of discreteness, dynamics, non-linearity, multi-objectiveness, and uncertainty, a power flow calculation method of an AC-DC hybrid distribution network based on a network matrix is presented. First, a steady-state power flow model of a Voltage Source Converter (VSC) is given according to the PWM modulation principle. Secondly, based on a binary described network matrix, the power flow calculation model of the AC-DC hybrid distribution network topology is established. Further, by modifying the Jacobian matrix for different control strategies the power flow model is solved based on Newton-Raphson method. Finally, two examples are given, and the results of PSCAD simulation are used to make a comparative analysis, which verifies the correctness, flexibility and convergence of the proposed power flow calculation model.
This work is supported by Science and Technology Project of the Headquarters of State Grid Corporation of China (No. 5102-201999343A-0-0-00). |
| Key words: AC-DC hybrid distribution network control strategy network matrix power flow calculation Jacobian matrix |
