GB/T 38993-2020Guide for control strategy of active and reactive power control system for photovoltaic power station (English PDF)

3.1 Active power of photovoltaic power station

The average value of the integral of the instantaneous power emitted by the photovoltaic power plant in a period.

3.2 Reactivepowerofphotovoltaicpowerstation

The electrical power required by photovoltaic power plants to establish an alternating magnetic field and induced magnetic flux.

3.3 Active power change of photovoltaic power station

In a certain time interval, the difference between the maximum and minimum active power of a photovoltaic power station.

3.4 Reactive power compensation equipment

A device for compensating reactive power installed centrally in a photovoltaic power station.

Note. Including shunt capacitors, shunt reactors, synchronous tuning cameras and static dynamic reactive power compensation devices.

4.1

The active and reactive power control functions of photovoltaic power plants are the prerequisite for determining the correct implementation of active and reactive power control strategies.

It has active and reactive power control functions. The active and reactive power control functions of the photovoltaic power station should be realized by the photovoltaic power station monitoring system, or can be independently installed.

Set to achieve.

4.2

Active power adjustment speed and control accuracy are important evaluation indicators for the pros and cons of the active power control strategy of photovoltaic power plants, which can be specified in accordance with GB/T 19964

Requirements.