Extra-High-Penetration Photovoltaic Generation Hybrid Power Dispatching Strategy in Rural Electric Distribution Area

This paper studied the issue of photovoltaic generation dispatching strategy under the condition of extra-high penetration in rural electric distribution area. Firstly, the operation safety problems are analyzed for rural electric distribution area with extra-high penetration photovoltaic generations. Secondly, photovoltaic generation hybrid power optimal dispatching model are formulated with multi-objectives including minimizing the reduction of the photovoltaic power, minimizing the reduction of the photovoltaic generation income, and minimizing the number of the active power dispatched of the photovoltaic generation units, under the constraints of the permitted range of the voltage deviation and the current overload of the distribution transformer. Thirdly, the solving method to the multi-objective optimal hybrid power dispatching model are proposed. And the formulated model and the proposed method are verified by case studies with a rural electric distribution area in a certain area of Henan with extra-high penetration photovoltaic generations under different operation conditions.