| 引用本文: | 李晓明,刘翔宇,李安昌,柳永超.配电网电压控制的分布式光伏无功仿射可调鲁棒优化方法[J].电力系统保护与控制,2021,49(12):124-131.[点击复制] |
| LI Xiaoming,LIU Xiangyu,LI Anchang,LIU Yongchao.Distributed photovoltaic reactive power affine adjustable robust optimization methodfor voltage control of a distribution network[J].Power System Protection and Control,2021,49(12):124-131[点击复制] |
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| 摘要: |
| 随着高比例分布式光伏发电并网引发的配电网电压波动越限问题，提出基于仿射可调鲁棒优化的分布式光伏无功功率调节方法。首先，通过建立以配电网有功网损和节点电压偏差最小化的综合优化模型，采用多面体线性化方法将综合优化模型转化为二次规划模型。然后，在考虑分布式光伏有功出力预算不确定性集的基础上，通过对偶变换将鲁棒优化模型转化为确定性的二次规划模型。在含高比例分布式光伏的IEEE-33和IEEE-123节点的配电系统仿真结果表明，与分布式光伏零无功调节相比，所提出的仿射可调鲁棒优化方法较传统的鲁棒优化方法能大幅度地改善网损和节点电压优化结果，具有较低的保守性，最为接近蒙特卡洛仿真结果。 |
| 关键词: 分布式光伏 配电网 电压控制 无功优化 仿射可调鲁棒 |
| DOI：DOI: 10.19783/j.cnki.pspc.201014 |
| 投稿时间：2020-08-19修订日期：2020-10-11 |
| 基金项目:河北省重点研发计划项目资助(19212102D)；国网河北省电力有限公司科技项目资助(kj2020-049) |
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| Distributed photovoltaic reactive power affine adjustable robust optimization methodfor voltage control of a distribution network |
| LI Xiaoming1,LIU Xiangyu1,LI Anchang1,LIU Yongchao2 |
| (1. State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China;
2. Shanghai Keliang Information Engineering Co., Ltd., Shanghai 200233, China) |
| Abstract: |
| The high proportion of distributed PV generation connected to a distribution network results in a nodal voltage over limit problem. Thus a distributed PV reactive power regulation method based on affine adjustable robust optimization is proposed in this paper. First, a comprehensive optimization model is established to minimize the active power loss and nodal voltage deviation of the distribution network, and the polyhedral linearization method is used to transform the comprehensive optimization model into a quadratic programming model. Then, considering the budget of uncertainty of active power of distributed PV, the robust optimization model is transformed into a deterministic quadratic programming model through dual transformation. The simulation results on IEEE-33 and IEEE-123 buses distribution systems with high proportion of distributed PV show that, compared with zero reactive power regulation of distributed PV, the proposed affine adjustable robust optimization method can greatly improve the optimization results of network loss and nodal voltage over that of the traditional robust optimization method and has lower conservatism, which is closest to the results of Monte Carlo simulation.
This work is supported by the Science and Technology Plan Project of Hebei Province (No. 19212102D) and the Science and Technology Project of State Grid Hebei Electric Power Co., Ltd. (No. kj2020-049). |
| Key words: distributed PV distribution network voltage control reactive power optimization affine adjustable robust optimization |
