GB/T 40589-2021Modeling guide for excitation system of synchronous generator (English PDF)
同步发电机励磁系统建模导则
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 11, 2021
Implementation date
May 1, 2022
Scope
GB/T 40589-2021 is the English-translated version of 同步发电机励磁系统建模导则.
GB/T 40589-2021 is a guide to building the mathematical model of a synchronous generator excitation system for power system stability analysis and calculation.
It distinguishes the primary model supplied by the manufacturer, the measured model obtained through identification and parameter tests, and the calculating model used in stability studies, which may be identical or only similar to the measured one.
It covers the requirements on excitation equipment, identification of the regulator's link characteristics, the measured models, model selection and parameter processing, field tests with simulation checks, and the review of model parameters.
Annexes deal with limiters, voltage adjustment rate, under- and over-excitation limit models and generator saturation. It applies to steam, gas and hydraulic turbine generators, pumped storage units and nuclear and solar thermal units. It was issued on 11 October 2021 and has applied since 1 May 2022.
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Document preview — GB/T 40589-2021
National Standard of the People's Republic of China
- ICS
- 29.020
- Classification
- F 24
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Abbreviations
- 5 General
- 6 Excitation equipment requirements
- 7 Standard unit value of excitation system
- 8 Identification of the link characteristics of the excitation regulator
- 9 Measured model
- 10 Calculation model selection and parameter processing
- 11 Field test and simulation check
- 12 Simulation review of model parameters
- Appendix A (Normative) Expression of Limiting
- Appendix B (informative) How to obtain the output limit value of the regulator
- Appendix C (Informative) Measurement of Voltage Adjustment Rate
- Appendix D (Informative) Low Excitation Limit Model
- Appendix E (informative) Overexcitation limit model
- Appendix F (informative) Test and verification of generator direct-shaft transient open circuit time constant
- Appendix G (Informative) Calculation of Generator Saturation Coefficient
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.
1 Scope
This document describes the establishment of the mathematical model of the synchronous generator excitation system (hereinafter referred to as the "model") for the stability analysis and calculation of the power system method.
This document applies to steam turbine generators, gas turbine generators, hydraulic turbine generators, pumped storage power generation/motors, nuclear power plants and solar thermal engines Group excitation system modeling. Synchronously adjust the camera for reference use.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 7409 (all parts) Synchronous motor excitation system
GB 38755 Safety and Stability Guidelines for Power Systems
DL/T 583 Technical conditions of static rectification excitation system for large and medium-sized hydro-generators
DL/T 843 Technical conditions for excitation system of large turbo-generator
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Primary model
Model structure and parameters derived from the information provided by the manufacturer.
3.2 Measured model
Refer to the original model for model identification and parameter measurement to obtain the model structure and parameters.
3.3 Calculating model
Model structure and parameters for stable calculation.
3.4 Identical calculating model
Consistent with the measured model structure, the calculation model structure and parameters that meet the requirements are confirmed through simulation check.
3.5 Similar calculating model
There is a certain difference between the structure of the measured model and the model used for stable calculation that basically meets the requirements after simulation by the calculation program and adjustment of the parameters. Structure and parameters.
3.6 Step test
A step change test of the set value of the controlled quantity.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 35 pages — is available in the English PDF.
Referenced standards
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DL/T 583-2018 — Specification for static rectified excitation systems for large and medium hydro generators
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