GB/T 38993-2020 English PDF

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GB/T 38993-2020: Guide for control strategy of active and reactive power control system for photovoltaic power station
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Basic data

Standard ID: GB/T 38993-2020 (GB/T38993-2020)
Description (Translated English): Guide for control strategy of active and reactive power control system for photovoltaic power station
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F12
Classification of International Standard: 27.160
Word Count Estimation: 10,139
Date of Issue: 2020-07-21
Date of Implementation: 2021-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38993-2020: Guide for control strategy of active and reactive power control system for photovoltaic power station

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Guide for control strategy of active and reactive power control system for photovoltaic power station ICS 27.160 F12 National Standards of People's Republic of China Active and reactive power control system of photovoltaic power station Control Strategy Guidelines 2020-07-21 released 2021-02-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 General requirements 1 5 Active power control 2 5.1 Active power control mode 2 5.2 Active power control strategy setting 2 5.3 Start control 2 5.4 Normal operation control 2 5.5 Limit control 2 5.6 Difference control 3 5.7 Frequency modulation control 3 5.8 Shutdown control 3 6 Reactive power control 4 6.1 Reactive power control mode 4 6.2 Reactive power control strategy process 4 6.3 Voltage setting control 4 6.4 Power factor control 5 6.5 Reactive power constant value control 5 6.6 Voltage slope control 5 7 Transient control 5 7.1 Basic Principle 5 7.2 Reactive power 5 7.3 Active power 6 7.4 Restoring grid control 6

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents. This standard was proposed and managed by the China Electricity Council. This standard was drafted. State Grid Qinghai Electric Power Company, China Electric Power Research Institute Co., Ltd., State Grid Xinjiang Electric Power Co., Ltd. The main drafters of this standard. Li Chunlai, Zhang Haining, Qian Minhui, Yang Libin, Chen Ning, Li Zhengxi, Yang Jun, Qu Linan. Active and reactive power control system of photovoltaic power station Control Strategy Guidelines

1 Scope

This standard provides guidelines for active power control, reactive power control and transient control strategies for photovoltaic power plants. This standard applies to photovoltaics that are connected to the grid through a voltage level of 35kV and above, and connected to the public grid through a voltage level of 10kV. Power station.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 19964 Technical Regulations for Connecting Photovoltaic Power Stations to Power Systems GB/T 29321 Technical specification for reactive power compensation of photovoltaic power station

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Active power of photovoltaic power station activepowerofphotovoltaicpowerstation 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 activepowerchangeofphotovoltaicpowerstation 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 reactivepowercompensationequipment 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 General requirements

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. ......

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