GB/T 39572.1-2020 PDF English
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Bi-directional grid-connected power converters - Part 1: General requirements
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GB/T 39572.1-2020: Bi-directional grid-connected power converters - Part 1: General requirements---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT39572.1-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.200
K 46
GB/T 39572.1-2020 / IEC 62909-1.2017
Bi-directional grid-connected power converters - Part 1.
General requirements
(IEC 62909-1.2017, IDT)
Issued on: DECEMBER 14, 2020
Implemented on: JULY 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 General specification... 17
4.1 General... 17
4.2 Description of GCPC and its components... 17
4.3 Operating modes... 18
4.4 Interfaces with distributed energy resources... 20
5 Performance requirements... 21
5.1 DC-connection interface... 21
5.2 Converter... 23
5.3 Grid interface... 24
5.4 AC output to the load under grid-independent operation... 26
6 Hazard protection requirements... 26
6.1 General... 26
6.2 Fault and abnormal conditions... 27
6.3 Short-circuit and overload protection... 27
6.4 Protection against electric shock... 27
6.5 Protection against electrical energy hazards... 33
6.6 Protection against fire and thermal hazards... 34
6.7 Protection against mechanical hazards... 35
6.8 Equipment with multiple sources of supply... 36
6.9 Protection against environmental stresses... 36
6.10 Protection against sonic pressure hazards... 36
6.11 Wiring and connections... 36
6.12 Enclosures... 37
7 Test requirements... 38
7.1 General... 38
7.2 Test specifications... 39
8 Information and marking requirements... 45
8.1 General... 45
8.2 Information for selection... 45
8.3 Information for installation and commissioning... 45
8.4 Instructions for use... 47
8.5 Information for maintenance... 47
Bibliography... 49
Foreword
GB/T 39572 Bi-directional grid-connected power converters intends to publish the
following parts.
-- Part 1.General requirements;
-- Part 2.Interface between bi-directional grid-connected power converters and
distributed energy resources;
-- Part 3.EMC requirements and test methods.
This Part is Part 1 of GB/T 39572.
This Part was drafted in accordance with the rules given in GB/T 1.1-2009.
This Part is identical to IEC 62909-1.2017 Bi-directional grid-connected power
converters - Part 1.General requirements by using the translation method.
The documents of our country that have a consistent correspondence with the
international documents referenced in this Part are as follows.
-- GB/T 156-2017, Standard voltages (IEC 60038.2009, MOD)
-- GB/T 7260.3-2003, Uninterruptible Power Systems (UPS) - Part 3.Method
of specifying the performance and test requirements (IEC 62040-3.1999,
MOD)
-- GB 17625.1-2012 Electromagnetic compatibility - Limits - Limits for
harmonic current emissions (equipment input current ≤16 A per phase) (IEC
61000-3-2.2009, IDT)
-- GB/T 17625.8-2015 Electromagnetic compatibility - Limits - Limits for
harmonic currents produced by equipment connected to public low-voltage
systems with input current >16 A and ≤75 A per phase (IEC 61000-3-12.2004,
IDT)
-- GB/T 20046-2006 Photovoltaic (PV) systems - Characteristics of the utility
interface (IEC 61727.2004, MOD)
This Part makes the following editorial changes.
-- Add a footnote to explain that 7.2.4.9.5 ~ 7.2.4.9.8 belong to the “Short time
withstand current (Icw) test (type test)”.
This Part was proposed by China Electrical Equipment Industry Association.
Bi-directional grid-connected power converters - Part 1.
General requirements
1 Scope
This Part of GB/T 39572 specifies general aspects of bi-directional grid-connected
power converters (GCPC), consisting of a grid-side inverter with two or more types of
DC-port interfaces on the application side with system voltages not exceeding 1 000 V
AC or 1 500 V DC. In special cases, a GCPC will have only one DC-port interface,
which is connected to a bidirectional energy-storage device. This document includes
terminology, specifications, performance, safety, system architecture, and test-case
definitions. The "system architecture" defines interaction between the inverter and
converters. Requirements which are common, general, and independent of special
characteristics of individual generators and bi-directional storages are defined in this
Part.
This Part does not cover uninterruptible power supply (UPS) systems, which fall under
the scope of IEC 62040 (all parts). Requirements for internal and external digital
communication might be necessary; the interface requirements including
communication with distributed energy resources are provided in a future part of GB/T
39572.All EMC requirements are defined by reference to existing IEC standards.
External communication requirements are out of scope of this Part.
Note. The control signal from the grid is not defined in this Part.
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements 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/T 3859.4-2004, Semiconductor converter - Self-commutated semiconductor
converters including direct d. c. converters (IEC 60146-2.1999, IDT)
IEC 60038.2009, IEC standard voltages
IEC 61000-3-2.2014, Electromagnetic compatibility (EMC) - Part 3-2.Limits -
Limits for harmonic current emissions (equipment input current ≤16 A per phase)
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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