Research on SVG Capacity for HV Distributed Photovoltaics System
After HV distributed photovoltaics system is integrated into the user's system,the active consumption from power grid is reduced,thus reducing the power factor of the system.Therefore,SVG compensation devices need to be installed for reactive power compensation.Based on different compensation objectives,this paper proposes two sets of SVG capacity calculation methods,one based on meeting real-time power factor requirements and the other based on meeting monthly power factor assessments of power administration.Among them,the SVG capacity calculation method based on meeting the monthly power factor assessment uses sine functions to simulate the time curve of the photovoltaic system's output power,and adopts the strategy of compensating as much as possible with SVG,so that reactive power consumption from power grid is reduced and the monthly active and reactive power ratio of the grid downstream meets the assessment requirements.After calculation and verification through engineering examples,it can meet the monthly power factor assessment requirements of the power grid for users.
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