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This paper discusses the active and reactive power control method for a modular multilevel converter (MMC) based grid-connected PV system. The voltage vector space analysis is performed by using average value models for the feasibility analysis of reactive power compensation (RPC). The proposed double-loop control strategy enables the PV system to handle unidirectional active power flow and bidirectional...
Islanding detection methods have been widely applied and thought for current-controlled voltage source inverters, as in case of photovoltaic inverters. However, some considerations have to be taken into account when anti-islanding detection strategies are applied on voltage controlled-voltage source inverters, for example in case of using AC droop control. This paper shows different issues when anti-islanding...
In this study, a DSP based three phase current controlled grid interactive inverter with reactive power injection capability is proposed for renewable energy sources. The proposed voltage source inverter consists of a line frequency transformer, LCL filter at the output and PI current regulator. The proposed inverter system has been designed, simulated and implemented. Both experimental and simulation...
Combination of a large amount of harmonic currents produced by nonlinear/power electronic loads and capacitance in the network usually results in harmonic resonance which is detrimental to the performance of the distribution systems. Over the last few years, there has been a very significant increased in the usage of power electronic loads such as the inverter air-conditioners, inverters refrigerators,...
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