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GB/T 29321-2026: Technical specification for reactive power compensation of PV power station
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GB/T 29321: Evolution and historical versions
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| GB/T 29321-2026 | English | 219 |
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Technical specification for reactive power compensation of PV power station
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| GB/T 29321-2012 | English | 189 |
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Technical specification for reactive power compensation of PV power station
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Standard similar to GB/T 29321-2026 GB/T 29319 | GB/T 33589 | GB/T 33599 | GB/T 29320 | Basic data | Standard ID | GB/T 29321-2026 (GB/T29321-2026) | | Description (Translated English) | Technical specification for reactive power compensation of PV power station | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F12 | | Classification of International Standard | 27.160 | | Word Count Estimation | 10,132 | | Date of Issue | 2026-02-27 | | Date of Implementation | 2026-09-01 | | Older Standard (superseded by this standard) | GB/T 29321-2012 | | Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China | GB/T 29321-2026: Technical specification for reactive power compensation of PV 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.
ICS 27.160
CCSF12
National Standards of the People's Republic of China
Replaces GB/T 29321-2012
Technical Specifications for Reactive Power Compensation in Photovoltaic Power Stations
Published on 2026-02-27
Implemented on 2026-09-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.General Requirements 2
5.Reactive power capacity and configuration 2
6.Voltage regulation 2
7.Reactive power voltage control system 3
8.Verification Method 4
Reference 5
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document replaces GB/T 29321-2012 "Technical Specification for Reactive Power Compensation of Photovoltaic Power Stations". Compared with GB/T 29321-2012, except for...
Aside from structural adjustments and editorial changes, the main technical changes are as follows.
a) The scope has been changed from "applicable to grid connection at voltage levels of 35kV and above" to "applicable to grid connection at voltage levels of 10kV and above".
Level-based grid connection (see Chapter 1, Chapter 1 of the.2012 edition);
b) The terms and definitions for "outgoing lines" and "voltage qualification rate" have been removed (see 3.3 and 3.6 in the.2012 edition);
c) A "General Requirements" section has been added (see Chapter 4);
d) Integrate the content on "Reactive Power Supply" into the overall requirements (see Chapter 4, Chapter 5 of the.2012 edition);
e) Increased technical requirements for electrochemical energy storage converters installed in photovoltaic power plants (see 4.4);
f) Added the requirement that photovoltaic power plants should coordinate the reactive power compensation device and the tap changer of the main transformer for voltage regulation (see 4.5);
g) Changed "Reactive Power Capacity" to "Reactive Power Capacity and Configuration," adding information on the reactive power capacity and configuration for photovoltaic power plants connected to weak power grids.
The device should be adapted to the requirements of low short-circuit ratio operating conditions (see Chapter 5, Chapter 6 of the.2012 edition);
h) The content on "voltage deviation" has been integrated into the "voltage regulation" chapter, and the reactive power and voltage control performance of photovoltaic power plants should meet the following requirements.
The need for regulation under rapid fluctuations in active power increases the requirement for dynamic reactive power compensation devices to respond when the control point voltage exceeds the set range.
Technical requirements for automatically switching from other control modes to constant voltage control mode with hysteresis control (see Chapter 6,.2012 edition)
Chapter 4);
i) Change "The absolute value of reactive power control deviation shall not exceed 5% of the given value" to "The difference between reactive power and command value shall not exceed the electrical..."
±1% of the station's rated power (see 7.1.4, 7.2.4, and 9.2.4 in the.2012 edition);
j) The section on "Reactive Power Compensation Devices" has been removed (see Chapter 7 of the.2012 edition);
k) "Monitoring and Assessment" has been removed (see Chapter 10 of the.2012 edition);
l) Added "Verification Methods" (see Chapter 8).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the China Electricity Council.
This document was drafted by China Electric Power Research Institute Co., Ltd.
The main drafters of this document are. Wang Haijiao, Zhang Xing, Zhang Mingyuan, Qu Jixian, Zhang Yue, Liu Chun, He Guoqing, Shi Wenhui, Chi Yongning, He Jing, and Tang Jianfang.
Sun Yanxia and Li Shuang.
The release history of this document and the document it replaces is as follows.
---First published in.2012 as GB/T 29321-2012;
---This is the first revision.
Technical Specifications for Reactive Power Compensation in Photovoltaic Power Stations
1 Scope
This document specifies the general requirements for reactive power compensation technology in photovoltaic power plants, including reactive power capacity and configuration, voltage regulation, and reactive power voltage control systems.
The system requirements are outlined, and the corresponding verification methods are described.
This document applies to the design, commissioning, operation, and maintenance of newly built or renovated (expanded) photovoltaic power stations connected to the grid at voltage levels of 10kV or above.
Repair and maintenance.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 19964 Technical Specifications for Connecting Photovoltaic Power Stations to Power Systems
GB/T 34120 Technical requirements for energy storage converters in electrochemical energy storage systems
GB/T 37408 Technical Requirements for Grid-Connected Photovoltaic Inverters
GB 38755 Guidelines for the Safety and Stability of Power Systems
NB/T 32007 Technical Specification for Testing Power Control Capability of Photovoltaic Power Plants
NB/T 32026 Test and Evaluation Methods for Grid-Connected Performance of Photovoltaic Power Stations
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
A power generation system that uses the photovoltaic effect of photovoltaic cells to directly convert solar radiation energy into electrical energy.
Note. This typically includes transformers, inverters, photovoltaic arrays, and related auxiliary facilities.
[Source. GB/T 19964-2024, 3.1]
3.2
Point of connection
For photovoltaic power stations with a step-up substation, it is the high-voltage side busbar or node of the step-up substation; for photovoltaic power stations without a step-up substation, it is the photovoltaic power station
The output summary point.
[Source. GB/T 19964-2024, 3.3]
3.3
The photovoltaic power station starts monitoring for abnormal voltage increases or decreases at the grid connection point, from the initial set value until the actual reactive power at the grid connection point is...
The time required for the actual output change (the difference between the target value and the initial value) to reach 90% of the target value.
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