Abstract
In recent years, renewable energy technologies like wind power generation are developing very fast. However, due to the randomness and intermittency of wind, the integration of large-scale wind farm into grid will have negative impact on many aspects of the grid. An effective way to solve these problems is to install battery energy storage system (BESS) in a wind farm. In order to smooth the output power of wind farm, this paper established a mathematical model for solving optimization problems of hybrid wind and BESS system, solved it with modern interior point algorithm. Charge-discharge process of BESS is optimized using the result of wind power prediction. Sensitivity of constraints in the model is also analyzed and optimal design of output power and capacity of BESS can be obtained as a by-product.
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