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Position: Chinese Standard in English/GB/T 33593-2017
GB/T 33593-2017   Technical requirements for grid connection of distributed resources (English Version)
Standard No.: GB/T 33593-2017 Status:valid remind me the status change

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Standard No.: GB/T 33593-2017
English Name: Technical requirements for grid connection of distributed resources
Chinese Name: 分布式电源并网技术要求
Chinese Classification: F21    Electric power system
Professional Classification: GB    National Standard
ICS Classification: 29 29    Electrical engineering 29
Issued by: AQSIQ; SAC
Issued on: 2017-05-12
Implemented on: 2017-12-1
Status: valid
Language: English
File Format: PDF
Word Count: 7500 words
Price(USD): 140.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by and is under the jurisdiction of the China Electricity Council. Technical Requirements for Grid Connection of Distributed Resources 1 Scope This standard specifies general principles and technical requirements which shall be followed for design, construction and operation for connecting distributed resources to power grid. This specification is applicable to newly-built, renovated and extended distributed resources connected to power grid through voltage grade of 35kV and below. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 2894 Safety Signs and Guideline for the Use GB 14050 Types and Safety Technical Requirements of System Earthing GB 50065 Code for Earthing Design of AC Electrical Installations GB/T 12325 Power Quality - Deviation of Supply Voltage GB/T 12326 Power Quality - Voltage Fluctuation and Flicker GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network GB/T 15543 Power Quality - Three-phase Voltage Unbalance GB/T 15945 Power Quality - Frequency Deviation for Power System GB/T 19862 General Requirements for Monitoring Equipment of Power Quality GB/T 24337 Power Quality - Interharmonics in Public Supply Network DL/T 448 Technical Administrative Code of Electric Energy Metering Unit DL/T 584 Code for Setting of 3kV~110kV Relaying Protection Equipment DL/T 621 Grounding for AC Electrical Installations DL/T 634.5101 Telecontrol Equipment and Systems Part 5: Transmission Protocols Section 101: Companion Standard for Basic Telecontrol Tasks DL/T 634.5104 Telecontrol Equipment and Systems Part 5-104: Transmission Protocols - Network Access for IEC 60870-5-101 Using Standard Transport Profiles 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 distributed resources power supply nearby the user connected to power grid with voltage grade of 35kV and below and absorbed locally at voltage grade of 35kV and below, including synchronous machine, asynchronous machine, converter or other types of power supply Note: including solar energy, natural gas, biomass energy, wind energy, hydroenergy, hydrogen energy, geothermal energy, ocean energy, power generation by comprehensive utilization of resources (including power generation by gas of coal mine) and stored energy, etc. 3.2 converter electrical equipment used to convert electric power to one or more forms of electric power suitable for power grid or users Note: including rectifier, inverter, AC converter and DC converter. 3.3 converter-type power supply power supply connected with power grid through converter wholly or partially 3.4 synchronous-machine-type power supply power supply directly connected with power grid through synchronous machine 3.5 asynchronous-machine-type power supply power supply directly connected with power grid through asynchronous machine 3.6 point of interconnection the busbar or node at high-voltage side of booster station for distributed resources with booster station; the output converging point of distributed resources for those without booster station 3.7 point of common coupling the connection for users connecting to public power grid. Note: see Annex A for schematic diagram for point of interconnection and point of common coupling. 3.8 islanding the continuously isolated operation state of partial power grid (including load and power supply) after it is disconnected from main grid Note: islanding may be classified into unplanned islanding and planned islanding. Unplanned islanding refers to the islanding occurred in an unplanned and uncontrollable way. Planned islanding refers to the islanding occurred in a planned way according to the pre-allocated control strategy. 4 Power Quality 4.1 General requirements 4.1.1 For power quality sent out by distributed resources, main indicators include harmonic, voltage deviation, voltage unbalance factor, voltage fluctuation and flicker. 4.1.2 The point of common coupling of converter-type distributed resources connected to power grid through voltage grade of 35kV of 10(6)~35KV shall be equipped with Grade A on-line monitoring device for power quality complying with GB/T 19862. The historical data for power quality monitoring shall be preserved for at least one year. 4.2 Harmonic 4.2.1 Harmonic current injected into point of common coupling to which distributed resources are connected shall meet the requirements of GB/T 14549. 4.2.2 Interharmonic at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 24337. 4.3 Voltage deviation Voltage deviation at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 12325. 4.4 Voltage fluctuation and flicker Voltage fluctuation and flicker value at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 12326. 4.5 Voltage unbalance factor Voltage unbalance factor at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 15543. 4.6 DC component After converter-type distributed resources are connected, DC current component injected into point of common coupling shall not exceed 0.5% of its rated AC value. 5 Power Control and Voltage Regulation 5.1 Active power control Distributed resources connected to power grid through voltage grade of 10(6)kV~35kV shall have be capable of regulating active power and active power output of the power supply according to power grid frequency value, order of power grid dispatching organization or other signals. Output power deviation and power variation rate shall not exceed the set value of power grid dispatching organization. 5.2 Reactive power and voltage regulation 5.2.1 The mode for distributed resources to participate in voltage regulation of distribution grid includes regulating reactive power of power supply, input of reactive compensation equipment and transformation ratio of power transformer. 5.2.2 For distributed resources connected to power grid through voltage grade of 380V, power factor at point of interconnection shall meet the following requirements: a) Synchronous machine-type and converter-type distributed resources shall be capable of ensuring that power factor at point of interconnection shall be regulable within the range of 0.95 (lead)~0.95 (lag). b) Asynchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is regulable within the range of 0.98 (lead)~0.98 (lag). 5.2.3 For distributed resources connected to power grid through voltage grade of 10(6)kV ~35kV, power factor and voltage regulation capacity at point of interconnection shall meet the following requirements: a) Synchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is continuously regulable within the range of 0.95 (lead)~0.95 (lag), and can participate in voltage regulation at point of interconnection; b) Asynchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is regulable within the range of 0.98 (lead)~0.98 (lag), and can be adjusted properly to stabilize voltage level where there are special requirements; c) Converter-type distributed resources shall be capable of ensuring that power factor at point of interconnection is continuously regulable within the range of 0.98 (lead)~0.98 (lag), and can be adjusted properly so as to stabilize voltage level where there are special requirements. Within the range of its reactive output, it shall be capable of regulating the reactive output according to voltage level at point of interconnection and participating in the regulation of power grid voltage, and parameters such as regulation mode, reference voltage and voltage regulation ratio may be set by power grid dispatching organization.
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Power Quality 5 Power Control and Voltage Regulation 6 Start and Stop 7 Operation Adaptability 8 Safety 9 Relay Protection and Automatic Safety Device 10 Communication and Information 11 Energy Metering 12 Grid Connection Detection Annex A (Normative) Schematic Diagram for Point of Interconnection and Point of Common Coupling
Referred in GB/T 33593-2017:
*GB 2894-2008 Safety Signs and Guideline for the Use
*GB 14050-2008 Types and safety technical requirements of system earthing
*GB50065-
*GB/T 12325-2008 Power quality - Deviation of supply voltage
*GB/T 12326-2008 Power quality - Voltage fluctuation and flicker
*GB/T 14285-2006 Technical Code for Relaying Protection and Security Automatic Equipment
*GB/T 14549-1993 Quality of Electric Energy Supply - Harmonics in Public Supply Network
*GB/T 15543-2008 Power quality—Three-phase voltage
*GB/T 15945-2008 Power quality—Frequency deviation for power system
*GB/T 19862-2016 General requirements for monitoring equipments of power quality
*GB/T 24337-2009 Power quality—Interharmonics in public supply network
*DL/T 448-2016 Technical administrative code of electric energy metering
*DL/T 584-2017 Setting guide for 3kV~110kV power system protection equipment
*DL/T 621-1997 Grounding for AC Electrical Installations
*DL/T 634.5101-2022 Telecontrol equipment and systems 一 Part 5-101:Transmission protocols-companion standard for basic telecontrol tasks
*DL/T 634.5104-2009 Telecontrol equipment and systems Part 5-104: Transmission protocols - network access for IEC 60870-5-101 using standard transport profiles
GB/T 33593-2017 is referred in:
*GB/T 42322-2023 Energy internet system—Interconnection of active distribution network
*TB/T 1950-1987 Design Parameter for Railway Tank Car Body
*TB/T 1613-1985 Design Parameter of Truck Hand Braking Device Design
*GB 7467-1987 Water quality-Determination of chromiun(Ⅵ)-1,5 Dtphenylcarbohydrazide spectrophotometric method
*GB/T 7467-1987 Water Quality - Determination of Chromium (VI) - 1, 5 Diphenylcarbohydrazide Spectrophotometric Method
*TB/T 1718.2-2017 Wheelsets assembly for locomotive and rolling stock - Part 2: Railway rolling stock
*GB/T 33644-2017 NC press brake -- Testing of the accuracy
*GB/T 33598-2017 Recycling of traction battery used in electric vehicle -- Dismantling specification
*GB/T 45418-2025 General technical directives for distribution networks
Code of China
Standard
GB/T 33593-2017  Technical requirements for grid connection of distributed resources (English Version)
Standard No.GB/T 33593-2017
Statusvalid
LanguageEnglish
File FormatPDF
Word Count7500 words
Price(USD)140.0
Implemented on2017-12-1
Deliveryvia email in 1 business day
Detail of GB/T 33593-2017
Standard No.
GB/T 33593-2017
English Name
Technical requirements for grid connection of distributed resources
Chinese Name
分布式电源并网技术要求
Chinese Classification
F21
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2017-05-12
Implemented on
2017-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
7500 words
Price(USD)
140.0
Keywords
GB/T 33593-2017, GB 33593-2017, GBT 33593-2017, GB/T33593-2017, GB/T 33593, GB/T33593, GB33593-2017, GB 33593, GB33593, GBT33593-2017, GBT 33593, GBT33593
Introduction of GB/T 33593-2017
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by and is under the jurisdiction of the China Electricity Council. Technical Requirements for Grid Connection of Distributed Resources 1 Scope This standard specifies general principles and technical requirements which shall be followed for design, construction and operation for connecting distributed resources to power grid. This specification is applicable to newly-built, renovated and extended distributed resources connected to power grid through voltage grade of 35kV and below. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 2894 Safety Signs and Guideline for the Use GB 14050 Types and Safety Technical Requirements of System Earthing GB 50065 Code for Earthing Design of AC Electrical Installations GB/T 12325 Power Quality - Deviation of Supply Voltage GB/T 12326 Power Quality - Voltage Fluctuation and Flicker GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network GB/T 15543 Power Quality - Three-phase Voltage Unbalance GB/T 15945 Power Quality - Frequency Deviation for Power System GB/T 19862 General Requirements for Monitoring Equipment of Power Quality GB/T 24337 Power Quality - Interharmonics in Public Supply Network DL/T 448 Technical Administrative Code of Electric Energy Metering Unit DL/T 584 Code for Setting of 3kV~110kV Relaying Protection Equipment DL/T 621 Grounding for AC Electrical Installations DL/T 634.5101 Telecontrol Equipment and Systems Part 5: Transmission Protocols Section 101: Companion Standard for Basic Telecontrol Tasks DL/T 634.5104 Telecontrol Equipment and Systems Part 5-104: Transmission Protocols - Network Access for IEC 60870-5-101 Using Standard Transport Profiles 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3.1 distributed resources power supply nearby the user connected to power grid with voltage grade of 35kV and below and absorbed locally at voltage grade of 35kV and below, including synchronous machine, asynchronous machine, converter or other types of power supply Note: including solar energy, natural gas, biomass energy, wind energy, hydroenergy, hydrogen energy, geothermal energy, ocean energy, power generation by comprehensive utilization of resources (including power generation by gas of coal mine) and stored energy, etc. 3.2 converter electrical equipment used to convert electric power to one or more forms of electric power suitable for power grid or users Note: including rectifier, inverter, AC converter and DC converter. 3.3 converter-type power supply power supply connected with power grid through converter wholly or partially 3.4 synchronous-machine-type power supply power supply directly connected with power grid through synchronous machine 3.5 asynchronous-machine-type power supply power supply directly connected with power grid through asynchronous machine 3.6 point of interconnection the busbar or node at high-voltage side of booster station for distributed resources with booster station; the output converging point of distributed resources for those without booster station 3.7 point of common coupling the connection for users connecting to public power grid. Note: see Annex A for schematic diagram for point of interconnection and point of common coupling. 3.8 islanding the continuously isolated operation state of partial power grid (including load and power supply) after it is disconnected from main grid Note: islanding may be classified into unplanned islanding and planned islanding. Unplanned islanding refers to the islanding occurred in an unplanned and uncontrollable way. Planned islanding refers to the islanding occurred in a planned way according to the pre-allocated control strategy. 4 Power Quality 4.1 General requirements 4.1.1 For power quality sent out by distributed resources, main indicators include harmonic, voltage deviation, voltage unbalance factor, voltage fluctuation and flicker. 4.1.2 The point of common coupling of converter-type distributed resources connected to power grid through voltage grade of 35kV of 10(6)~35KV shall be equipped with Grade A on-line monitoring device for power quality complying with GB/T 19862. The historical data for power quality monitoring shall be preserved for at least one year. 4.2 Harmonic 4.2.1 Harmonic current injected into point of common coupling to which distributed resources are connected shall meet the requirements of GB/T 14549. 4.2.2 Interharmonic at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 24337. 4.3 Voltage deviation Voltage deviation at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 12325. 4.4 Voltage fluctuation and flicker Voltage fluctuation and flicker value at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 12326. 4.5 Voltage unbalance factor Voltage unbalance factor at point of common coupling to which the distributed resources are connected shall meet the requirements of GB/T 15543. 4.6 DC component After converter-type distributed resources are connected, DC current component injected into point of common coupling shall not exceed 0.5% of its rated AC value. 5 Power Control and Voltage Regulation 5.1 Active power control Distributed resources connected to power grid through voltage grade of 10(6)kV~35kV shall have be capable of regulating active power and active power output of the power supply according to power grid frequency value, order of power grid dispatching organization or other signals. Output power deviation and power variation rate shall not exceed the set value of power grid dispatching organization. 5.2 Reactive power and voltage regulation 5.2.1 The mode for distributed resources to participate in voltage regulation of distribution grid includes regulating reactive power of power supply, input of reactive compensation equipment and transformation ratio of power transformer. 5.2.2 For distributed resources connected to power grid through voltage grade of 380V, power factor at point of interconnection shall meet the following requirements: a) Synchronous machine-type and converter-type distributed resources shall be capable of ensuring that power factor at point of interconnection shall be regulable within the range of 0.95 (lead)~0.95 (lag). b) Asynchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is regulable within the range of 0.98 (lead)~0.98 (lag). 5.2.3 For distributed resources connected to power grid through voltage grade of 10(6)kV ~35kV, power factor and voltage regulation capacity at point of interconnection shall meet the following requirements: a) Synchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is continuously regulable within the range of 0.95 (lead)~0.95 (lag), and can participate in voltage regulation at point of interconnection; b) Asynchronous machine-type distributed resources shall be capable of ensuring that power factor at point of interconnection is regulable within the range of 0.98 (lead)~0.98 (lag), and can be adjusted properly to stabilize voltage level where there are special requirements; c) Converter-type distributed resources shall be capable of ensuring that power factor at point of interconnection is continuously regulable within the range of 0.98 (lead)~0.98 (lag), and can be adjusted properly so as to stabilize voltage level where there are special requirements. Within the range of its reactive output, it shall be capable of regulating the reactive output according to voltage level at point of interconnection and participating in the regulation of power grid voltage, and parameters such as regulation mode, reference voltage and voltage regulation ratio may be set by power grid dispatching organization.
Contents of GB/T 33593-2017
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Power Quality 5 Power Control and Voltage Regulation 6 Start and Stop 7 Operation Adaptability 8 Safety 9 Relay Protection and Automatic Safety Device 10 Communication and Information 11 Energy Metering 12 Grid Connection Detection Annex A (Normative) Schematic Diagram for Point of Interconnection and Point of Common Coupling
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Keywords:
GB/T 33593-2017, GB 33593-2017, GBT 33593-2017, GB/T33593-2017, GB/T 33593, GB/T33593, GB33593-2017, GB 33593, GB33593, GBT33593-2017, GBT 33593, GBT33593