A three-level space vector modulated grid connected inverter with control scheme based on instantaneous power theory

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• 作者：Georgios Tsengenes ^{gtseng@ee.duth.gr} ; Thomas Nathenas ; ^{tnathena@ee.duth.gr} ; Georgios Adamidis ^{adamidis@ee.duth.gr}
• 关键词：Three-level inverter ; p&ndash ; q Theory ; Fuzzy logic controller ; Neutral point balancing ; Reactive power compensation
• 刊名：Simulation Modelling Practice & Theory
• 出版年：2012
• 期刊代码：80_1569190x
• 类别：mt
• 出版时间：June, 2012
• 卷：25
• 期：Complete
• 页码：134-147
• 文件大小：1977 K

摘要

In this paper the control scheme of a three-level three-phase inverter for grid integration of distributed generation (DG) units is investigated. Furthermore, the inverter compensates the reactive power of the load. The presented control scheme is based on instantaneous power theory in order to generate the appropriate inverter reference currents. In the outer DC bus voltage control loop and in the inner current control loop, the fuzzy logic (FL) control and the Proportional-Resonant (PR) control is applied respectively. The switching pattern generation is achieved using Space Vector Pulse Width Modulation technique. The steady state and dynamic response of the proposed electric power system has been evaluated under various operating conditions. Simulation results verify the effectiveness of the proposed control system.