Decentralized Coordinated Voltage Control for VSC-HVDC Connected Wind Farms Based on ADMM
Decentralized Coordinated Voltage Control for VSC-HVDC Connected Wind Farms Based on ADMM
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DOI：
10.1109/tste.2018.2848467
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发表时间：
2019-04
影响因子：
8.8
通讯作者：
Yifei Guo;Houlei Gao;Hao Xing;Qiuwei Wu;Zhongwei Lin
中科院分区：
文献类型：
--
作者：
Yifei Guo;Houlei Gao;Hao Xing;Qiuwei Wu;Zhongwei Lin
提出了一种基于模型预测控制（MPC）的电压源换流器（VSC）-高压直流（HVdc）并网风电场分散协调电压控制（DCVCS）方案，通过优化VSC和风力机（WT）的协调，在可行范围内调节风电场网络的电压分布。首先，基于MPC的集中式最优控制问题，制定最小化的电压偏差和无功功率输出波动的WT。其次，分散的解决方法的基础上交替方向的乘法器（ADMM）具有快速收敛的MPC问题，在分散的方式解决，而不会失去原问题的最优性。一个64 WTs的风电场被用来验证DCVCS的有效性和优越性。
This paper proposes a decentralized coordinated voltage control scheme (DCVCS) for voltage-source-converter high-voltage dc (VSC-HVdc) connected wind farms based on the Model Predictive Control (MPC), which regulates the voltage profile across the wind farm network within the feasible range by optimally coordinating the VSC and wind turbines (WTs). First, the centralized optimal control problem based on the MPC is formulated to minimize voltage deviations and reactive power output fluctuations of WTs. Second, the decentralized solution methodology based on Alternating Direction Method of Multipliers (ADMM) with fast convergency is used to solve the MPC problem in a decentralized manner without loss of optimality of the primal problem. A wind farm with 64 WTs was used to validate the effectiveness and superiority of the proposed DCVCS.