A Novel Control Scheme Based on the Synchronous Frame for APF

作者：Wang, Yifan; Zheng, Hong^*; Wang, Ruoyin; Zhu, Wen

来源：Journal of Power Electronics, 2017, 17(6): 1553-1562.

DOI：10.6113/JPE.2017.17.6.1553

• Active power filter
• Fast repetitive control
• Internal model optimization
• Harmonic compensation

For the purpose of enhancing the performance of the shunt active power filter (APF), this paper presents a novel Fast Weighted Compound Control (FWCC) strategy based on the synchronous frame. In this control strategy, the proposed new repetitive controller can work faster and more stably by reducing the internal model cycle and introducing a damping coefficient. In addition, the harmonic detector can be removed to simplify the structure of the APF owing to the improvements. Furthermore, a proportional-integral (PI) controller is added to work in parallel with the repetitive controller by using a weighted ratio. Then, a convergence speed analysis and design algorithm are given in detail. Simulation and experimental results show that the harmonic distortion is reduced from 2.91% to 1.89%. In addition, the content for each of the characteristic harmonic orders has decreased by more than three times.

• 出版日期2017-11
• 单位江苏大学