An improved prediction control strategy of battery storage inverter

This paper proposed an improved prediction control strategy of battery storage inverter, suppressing the large prediction error in battery storage inverter. The steady state and dynamic performance are significantly improved compared with typical prediction controller. Firstly the prediction control scheme is introduced to eliminate the influence of time consumption. Then the formation mechanism of prediction control error is obtained. The function between input voltage error and prediction error is achieved. In order to suppress the large prediction error, an improved prediction control strategy is proposed in this paper, which uses the integral of back ward difference. At last, the proposed control strategy is realized in a 30kW prototype. And the steady state error is reduced from 9% to 1%.