2016 · 16 citations · 11 references
EngineeringElectrical EngineeringPower ElectronicsRenewable Energy IntegrationRenewable Energy SystemsPower System StabilityRenewable EnergyRenewable Energy Power ConversionRenewable Energy TechnologySolar Energy SystemsSolar Photovoltaic SystemsPhotovoltaic Energy SystemsPhotovoltaic SystemsRenewable IntegrationSolar Photovoltaic Power SystemsStability RegionsVirtual Synchronous Generator ControlVirtual Synchronous MachinesVoltage Collapse Analysis
This paper proposes the concept of PV_VSG, which mainly means combining Photovoltaic (PV) and Virtual Synchronous Generator (VSG) together. To control PV_VSG operating well in stand-alone mode, a novel control strategy is proposed to match the PV output and the load, which can prevent the PV output voltage from collapsing. First, the topology and the operation scenarios are investigated. Then, the principles of DC voltage collapse and the operation stability regions are clearly analyzed. And the detailed control strategy is deeply presented. Simulation results are also demonstrated to verify the effectiveness of the proposed control strategy.
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