基于MPC的主动配电网多级电压控制
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国家自然科学基金资助项目(51777031)


Multi-level voltage control in active distribution network based on model predictive control
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    摘要:

    随着光伏高渗透率接入不同电压等级配电网,各电压等级配电网之间相互影响更加复杂,实现运行控制策略的经济性和安全性是一个极大的挑战。文中以中压配电网为控制对象,计及不同电压等级配电网间的交互影响,提出了基于模型预测控制(MPC)的主动配电网多级电压控制方法。中高压配电网控制中,考虑高压配电网所控制的有载调压变压器(OLTC)/并联电容器组(CB)的未来时刻动作计划,建立中高压关联模型,协调控制中压配电网连续型设备与高压配电网离散型设备;中低压配电网控制中,计及中低压配电网间的不确定性交换功率及其相互影响,构建中低压关联模型,实现中压配电网对低压配电网的支撑。最后,在Matlab中进行仿真分析,验证所提多级电压控制的可行性和有效性。

    Abstract:

    With more and more photovoltaic generations integrated into different voltage level distribution networks, the interaction between the various voltage levels of the distribution network is more complicated. It is a great challenge for the active distribution network to improve of system security and economy capacities. Considering the effect between different voltage levels, a multi-level voltage interaction control method for active distribution network based on model predictive control (MPC) is proposed in the paper. Considering on-load tap changers (OLTC) and shunt capacitor banks (CB) future-time action plan, a medium-high voltage association model is established. Coordinated control of continuous equipment in medium voltage distribution network and discrete equipment in high voltage distribution network is achieved. In the medium and low voltage distribution network, taking into account the uncertainty exchange power and their mutual influence, a low-middle voltage association model is established. It can realize the support of medium voltage distribution network to low voltage distribution network. Finally, a case study is carried out in Matlab and the results verify the effectiveness and feasibility of the proposed approach.

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韩华春,窦晓波,李强,常莉敏,沈璐,杜健雄.基于MPC的主动配电网多级电压控制[J].电力工程技术,2019,38(3):41-50

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  • 收稿日期:2018-12-10
  • 最后修改日期:2019-01-13
  • 录用日期:2019-03-29
  • 在线发布日期: 2019-06-03
  • 出版日期: 2019-05-28
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