基于改进信赖域算法的孤岛交直流混合微电网潮流计算

WANG Han

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基于改进信赖域算法的孤岛交直流混合微电网潮流计算

更新时间：2025-08-13

- 基于改进信赖域算法的孤岛交直流混合微电网潮流计算
- Automation of Electric Power Systems Vol. 41, Issue 20, Pages: 38-46(2017)
- 作者机构：
  
  电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市,200240
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- Published：2017
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WANG Han. [J]. Automation of electric power systems, 2017, 41(20): 38-46.
DOI：

WANG Han. [J]. Automation of electric power systems, 2017, 41(20): 38-46. DOI：

摘要

交直流混合微电网兼备交流微电网和直流微电网的优点，是未来具有发展前景的一种微电网形式。针对对等控制策略下的孤岛交直流混合微电网，考虑分布式电源和分布式储能装置不同的控制方式，基于交直流互联变流器标幺化方法的自治运行控制策略，兼顾交流子系统和直流子系统之间的双向功率交换，建立了对等控制策略下的孤岛交直流混合微电网潮流计算模型。为了提高现有潮流计算方法的收敛性，提出了信赖域半径收敛至0的改进信赖域算法求解上述模型。通过对12节点的孤岛交直流混合微电网的潮流计算，与BFGS(Broyden-Fletcher-Goldfarb-Shanno)信赖域算法及牛顿—拉夫逊法进行了对比，验证了所提算法的有效性和鲁棒性。

Abstract

With both AC microgrid and DC microgrid advantages

the AC-DC hybrid microgrid is a promising development form of a microgrid form in the future. Peer-to-peer control strategy of the islanded AC-DC hybrid microgrid has many distributed generators and distributed storage devices controlled by different methods. The peer-to-peer control strategy of islanded AC-DC hybrid microgrid power flow calculation model is established

which is based on interlinking converter scaling method of autonomous operation control strategy and the consideration of bidirectional power exchange between AC subsystem and DC subsystem. In order to improve the convergence of the existing power flow calculation methods

an improved trust region algorithm based on the trust region radius convergence to 0 is proposed. According to the comparison of the BFGS trust region algorithm and the Newton-Raphson method

the effectiveness and robustness of the proposed algorithm is verified by comparing the results of the 12-bus islanded AC-DC hybrid microgrid.

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