Distributed photovoltaic grid-connected line loss adaptive compensation system

Abstract

This application provides a distributed photovoltaic grid-connected line loss adaptive compensation system, including a data acquisition module, a volatility detection module, a dual-mode controller, a cloud optimization platform, an edge compensation terminal, and a closed-loop verification module. This invention defines real-time volatility indices for photovoltaic output and load, and sets adaptive switching thresholds to achieve dual-mode switching between steady-state optimization and transient real-time compensation. In transient mode, the edge compensation terminal uses an improved virtual synchronous machine algorithm including a line loss sensitivity correction term to calculate reactive power reference values, and combines this with an incremental compensation strategy to achieve millisecond-level dynamic reactive power adjustment. This invention relates to the field of distributed generation and distribution network operation control technology, and solves the problems of control logic lag and slow compensation response in existing technologies, offering advantages such as fast response speed, strong adaptability, and significant line loss suppression.

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