Active power compensation method for single-phase current source rectifier without extra active switches

作者：Liu, Yonglu; Sun, Yao^*; Su, Mei

来源：IET Power Electronics, 2016, 9(8): 1719-1726.

DOI：10.1049/iet-pel.2015.0899

• rectifying circuits
• closed loop systems
• active power compensation method
• single-phase current source rectifier
• active power decoupling methods
• SCSRs
• semiconductor devices
• energy storage units
• double-frequency ripple power
• decoupling capacitor
• modulation scheme
• closed-loop control method
• line frequency ripple power compensation performance
• diode

The existing active power decoupling methods for single-phase current source rectifiers (SCSRs) usually involve a lot of additional semiconductor devices or energy storage units, which is adverse to cost and efficiency. This study proposes an active power decoupling method to buffer the double-frequency ripple power. The main circuit is configured by adding only a decoupling capacitor and a diode to the traditional SCSR. Compared with the existing ones, the added components are minimised. The operating principle and modulation scheme are described. A closed-loop control method is developed to enhance twice the line frequency ripple power compensation performance. The guide for the selection of the decoupling capacitance is also discussed. Simulations and experimental results are presented to show the effectiveness of the method.

• 出版日期2016-6-29
• 单位中南大学