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GB/T 38983.1-2020Virtual synchronous machine—Part 1: General (English PDF)

虚拟同步机第1部分：总则

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 21, 2020

Implementation date

February 1, 2021

Scope

GB/T 38983.1-2020 is the English-translated version of 虚拟同步机第1部分：总则.

GB/T 38983.1-2020 is the Chinese standard "Virtual synchronous machine—Part 1: General". Its scope clause reads: This part of GB/T 38983 specifies the basic regulations, functional requirements and performance requirements of virtual synchronous machines.

This section applies to the design and application of virtual synchronous machines. Its clauses include terms and definitions.

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Document preview — GB/T 38983.1-2020

National Standard of the People's Republic of China

ICS: 27.010
Classification: F 19

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and definitions
3.1 Virtual synchronous machine virtual synchronous machine; VSM
3.2 Virtualsynchronousgenerator
3.3 Virtual synchronous motor
3.4 Activepower-frequencyregulationcoefficientofVSM

1 Scope

This part of GB/T 38983 specifies the basic regulations, functional requirements and performance requirements of virtual synchronous machines.

This section applies to the design and application of virtual synchronous machines.

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 18451.2 Wind Turbine Generator Power Characteristic Test

GB/T 18487 (all parts) Conductive charging system for electric vehicles

GB/T 19963 Technical Regulations for Connecting Wind Farms to Power Systems

GB/T 19964 Technical Regulations for Connecting Photovoltaic Power Stations to Power Systems

GB/T 20234 (all parts) Connecting devices for conductive charging of electric vehicles

GB/T 29319 Technical Regulations for Connecting Photovoltaic Power Generation System to Distribution Network

GB/T 34120 Technical specification for energy storage converter of electrochemical energy storage system

GB/T 36548 Test Specification for Connecting Electrochemical Energy Storage System to Grid

GB/T 37408 Technical requirements for grid-connected inverters for photovoltaic power generation

GB/T 37409 Technical Specification for Testing of Grid-connected Inverters for Photovoltaic Power Generation

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Virtual synchronous machine virtual synchronous machine; VSM

By simulating the electromechanical transient characteristics such as the inertia and internal potential of the synchronous machine, the power and voltage operating external characteristics of the port are similar to the synchronous machine

Power electronic converter system or equipment.

3.2 Virtualsynchronousgenerator

The port characteristics appear as a virtual synchronous machine for generators to generate electricity.

3.3 Virtual synchronous motor

The port characteristics appear as a virtual synchronous machine for load power consumption.

3.4 Activepower-frequencyregulationcoefficientofVSM

The rate of change of the active power of the virtual synchronous machine with frequency.

Note. The active frequency modulation coefficient of the virtual synchronous machine is usually expressed by Kf, and the calculation method is shown in formula (1). Use the virtual synchronous machine's active power change to mark the unit value (in the virtual

The ratio of the rated active power of the pseudo-synchronous machine as the reference value) and the per-unit value of the system frequency change (take the system rated frequency as the reference value) is expressed.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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