Research on Optimal Economic Benefit of a Micro-Grid with Area Small Hydropower and New Energy Complementary

Abstract

Wind power generation technology has become increasingly mature. Recently, the micro-grid with area small hydropower and new energy complementary is put forward. Take the hybrid wind-hydro power system as an example. The complementary micro-grid mainly consists of small hydropower group, wind power and energy storage devices. In this way, not only is the stability improved, but also the operational benefit is maximized. The paper sets forth the complementary system from the following aspects. First, based on fully knowing of the operation of the wind power and the hydro power, combine the knowledge of the micro grid and the energy storage technique and design the structure of the hybrid wind-hydro complementary generation system (HWCGS). At the same time, analyze the distinguishing complementary features of the wind power and the hydropower. In order to improve the stability, connect the micro grid with the power grid. Second, build up the equivalent model of the complementary system. In the end, evaluate the comprehensive optimization to build up the model under the optimal economic benefit.