| 引用本文: | 吴素农,于金镒,田庄,等.基于扩展节点法的交直流混合电网统一潮流算法[J].电力系统保护与控制,2018,46(14):40-47.[点击复制] |
| WU Sunong,YU Jinyi,TIAN Zhuang,et al.A unified power flow algorithm for AC/DC hybrid networks using modified augmented nodal analysis[J].Power System Protection and Control,2018,46(14):40-47[点击复制] |
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| 摘要: |
| 基于电压源型换流器的多端直流输电电网是解决可再生能源并网和消纳的有效途径，因此研究交直流混合电网的潮流算法很有必要。提出了一种基于扩展节点法的交直流混合电网统一潮流算法。首先建立了电压源型换流站的稳态模型和控制策略及基于扩展节点法的交流和直流电网的网络模型。然后推导了基于牛顿法的统一潮流算法，将交直流混合电网的节点注入电流、支路电流和节点电压作为未知变量同时求解。通过IEEE 30节点交直流混合电网算例验证了所提算法的有效性。 |
| 关键词: 交直流电网 电压源型换流器 扩展节点法 潮流计算 |
| DOI：10.7667/PSPC170969 |
| 投稿时间：2017-06-28修订日期：2017-09-20 |
| 基金项目:国家自然科学基金项目(51477083) |
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| A unified power flow algorithm for AC/DC hybrid networks using modified augmented nodal analysis |
| WU Sunong,YU Jinyi,TIAN Zhuang,ZHUANG Zhili,YANG Weiqun,LI Yingjun,PENG Liping,WU Wenchuan |
| (State Grid Jiangxi Electric Power Corporation, Nanchang 330077, China;Department of Electrical Engineering, Tsinghua University, Beijing 100084, China) |
| Abstract: |
| The VSC based Multi-terminal DC (MTDC) grid is a promising approach for the integration of renewable energy sources. It’s necessary to study the power flow of the AC/DC network. A unified power flow algorithm for AC/DC network using Modified Augmented Nodal Analysis (MANA) is proposed. The detailed steady state model and different control modes of VSC station, MANA based AC and DC network model is established firstly. Then a unified power flow algorithm is developed based on the Newton MANA method, the node injection currents and branch currents of AC/DC network are added as unknown variables and solved simultaneously with the unknown node voltages. The effectiveness of the proposed algorithm is verified by numerical tests on modified IEEE 30-bus system. This work is supported National Natural Science Foundation of China (No. 51477083). |
| Key words: AC/DC network voltage source converter modified augmented nodal analysis power flow |
