pq control of pv to grid

资 源 简 介

pq control of pv to grid

详 情 说 明

PQ control is a fundamental technique used in photovoltaic (PV) systems to regulate how power is injected into the grid. The primary goal of this control strategy is to manage the real (P) and reactive (Q) power output of the inverter, ensuring stable and efficient grid integration.

The key principle of PQ control lies in decoupling the active and reactive power components. Active power (P) is typically determined by the available solar energy and the maximum power point tracking (MPPT) algorithm, while reactive power (Q) can be adjusted to support grid voltage stability or meet utility requirements.

A well-designed PQ controller ensures that the PV system complies with grid codes, maintains power quality, and provides ancillary services such as voltage support and frequency regulation. The control loop typically involves measuring the grid voltage and current, computing the required power references, and adjusting the inverter’s modulation signals accordingly.

By leveraging PQ control, PV systems can transition from being mere energy producers to active participants in grid management, enhancing system reliability and enabling higher penetration of renewable energy sources.