New Direct Power Control Strategies of Three-Phase VSIs for the Minimization of Common-Mode Emissions in Distributed Generation Systems

2007 ◽  
Author(s):  
Maurizio Cirrincione ◽  
Marcello Pucci ◽  
Gianpaolo Vitale
Keyword(s):  
Power Control ◽  
Distributed Generation ◽  
Control Strategies ◽  
Direct Power ◽  
Direct Power Control ◽  
Common Mode ◽  
Three Phase

Realization of Fixed Switching Frequency Direct Power Control for Three-Phase AC/DC Converter

2013 ◽  
Vol 385-386 ◽  
pp. 1216-1219
Author(s):  
Yun Liang Wang ◽  
Yong Le Zhao
Keyword(s):  
Power Control ◽  
Pulse Width Modulation ◽  
Control Strategies ◽  
Modulation Method ◽  
Switching Frequency ◽  
Direct Power ◽  
Direct Power Control ◽  
Three Phase ◽  
Simulation Results ◽  
Virtual Flux

This paper presents fixed switching frequency direct power control (FSF-DPC) for three-phase AC/DC converter. Sensorless control strategies based on virtual-flux can optimize the performance of the system. In this paper, realization of pulse width modulation method for FSF-DPC is presented. The simulation results show that the system running performance is good.

Quasi Resonant Direct Power Control of Three-Phase Grid-Connected Inverters in Distributed Generation Systems

2011 ◽  
Vol 48-49 ◽  
pp. 863-867
Author(s):  
Fang Ping Zhao ◽  
Yong Yang ◽  
Yi Yuan
Keyword(s):  
Power Control ◽  
Distributed Generation ◽  
Control Strategy ◽  
Experimental Results ◽  
Switching Frequency ◽  
Theoretical Principle ◽  
Output Current ◽  
Direct Power ◽  
Direct Power Control ◽  
Three Phase

The paper proposes a quasi resonant direct power control algorithm for three-phase grid-connected inverters without grid voltage sensors in distributed generation systems. According to the active and reactive power references, grid virtual flux and the inverter output current references are calculated. In order to accurately and fast track the output current references, the quasi proportional resonant (QPR) controller is used. The theoretical principle of this method is discussed. The steady-state and dynamic experimental results of quasi resonant direct power control that can illustrate the operation and performance of the presented control strategy are displayed. It is shown that the control system exhibits several advantages, such as constant switching frequency, sinusoidal grid currents and good dynamic response. Experimental results are provided to demonstrate the effectiveness of the proposed control strategy.

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