新型SPLL在蓄电池充放电装置中的应用研究

Research on the application of a novel SPLL in the battery charged and discharged device

叙述了双同步旋转坐标变换原理,提出了一种基于此变换的新型锁相环(SPLL)设计方法,阐述了新型SPLL在蓄电池充放电装置中的具体应用方案,该方案能够在电网电压发生畸变及不平衡条件下利用双同步旋转坐标变换快速、准确地锁定电网电压相位。根据该应用方案建立的装置控制策略将大大提高基于可逆PWM整流器的蓄电池充放电装置的充放电性能和效率。仿真结果验证了方案的可行性和有效性。

The convert principle of the double synchronous revolving frame （DSRF） and the design method of a novel SPLL based on DSRF is presented in this paper. The application of a novel SPLL in battery charged and discharged device is introduced, which can make device lock the phrase of power voltage quickly and exactly on the condition of aberration or imbalance. The device control strategy based on the a novel SPLL can advance the performance and efficiency of the battery charged and discharged device based on reversible PWM rectifier. Results from simulation show that the proposed method is feasible and available.