Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

作者：Qiu Changqing^*; Huang Shenghua; Wang Ende

来源：Automatika, 2014, 55(4): 425-433.

DOI：10.7305/automatika.2014.12.545

• Regenerative cascade inverter
• Direct active power control
• Feed-forward control
• Observer

This paper presents a regenerative cascade inverter topology with direct active power control scheme. From the mathematical model of the proposed regenerative cascade inverter, the instantaneous active power and reactive power are derived. Based on the instantaneous abc theory, direct active power feed-forward control is proposed to reduce AC power and voltage fluctuation in DC link. Moreover, a load current full order observer is established to avoid the inconvenient of the current sensor installation. The proposed control scheme is analyzed theoretically by simulation, and verified experimentally.

• 出版日期2014-12