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GB/T 40102-2021Test code of connecting to power system for solar thermal power plants (English PDF)

太阳能热发电站接入电力系统检测规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 21, 2021

Implementation date

December 1, 2021

Scope

GB/T 40102-2021 is the English-translated version of 太阳能热发电站接入电力系统检测规程.

GB/T 40102-2021 sets out the tests that a solar thermal power plant has to pass when it is connected to the power system.

It gives the methods for start-up and shutdown tests, excitation system parameter tests, power system stabilizer parameter setting, speed control system parameter tests, generator leading phase tests, primary frequency modulation tests, and tests of the automatic generation control (AGC) and automatic voltage control (AVC) systems, with the measuring instruments to use.

Several of these tests follow the DL/T guides for excitation modelling, stabilizer setting, governor testing and leading phase operation. It applies to solar thermal power plants with thermal storage that use steam turbine generator sets. It was issued on 21 May 2021 and has applied since 1 December 2021.

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Document preview — GB/T 40102-2021

National Standard of the People's Republic of China

ICS: 27.160
Classification: F 12

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

Foreword3
1 Scope4
2 Normative References4
3 Terms and Definitions4
4 Basic Rules5
5 Measuring Instruments5
6 Start-up and Shutdown Tests5
7 Excitation System Parameter Test6
8 PSS Parameter Setting Test6
9 Speed Control System Parameter Test6
10 Generator Leading Phase Test6
11 Primary Frequency Modulation Test7
12 AGC System Test8
13 AVC System Test9

1 Scope

This Standard specifies the methods for the start-up and shutdown test, excitation system parameter test, power system stabilizer parameter setting test, speed control system parameter test, generator leading phase test, primary frequency modulation test, automatic power generation control system test and automatic voltage control system test of connecting to power system for solar thermal power plants.

This Standard is applicable to thermal storage type of solar thermal power plants using steam turbine generator set.

2 Normative References

The content of the following documents constitutes indispensable clauses of this document through normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document.

GB/T 20840.2 Instrument Transformers - Part 2: Additional Requirements for Current Transformers

GB/T 20840.3 Instrument Transformers - Part 3: Additional Requirements for Inductive Voltage Transformers

GB/T 40103 Technical Requirement of Connecting to Power System for Solar Thermal Power Station

DL/T 1167 Guide for Modeling Generator Excitation System

DL/T 1231 Guide for Setting Test of Power System Stabilizer

DL/T 1235 Guide for Modeling and Testing of Generator's Prime Mover and Governor

DL/T 1523 Guide on Leading Power Factor Operation Test of Synchronous Generator

3 Terms and Definitions

The terms and definitions defined in GB/T 40103 are applicable to this document.

6 Start-up and Shutdown Tests

6.2 Shutdown Test

The test shall be carried out in accordance with the following steps:

a) Start the normal shutdown procedure;

b) Actuate the data acquisition device;

c) On the outlet side of the generator set, continuously measure and record the active power of the entire shutdown process;

d) Calculate the load reduction rate.

7 Excitation System Parameter Test

The method for the excitation system parameter test of the solar thermal generator set shall comply with the stipulations of DL/T 1167.

8 PSS Parameter Setting Test

The method for the PSS parameter setting test of the solar thermal generator set shall comply with the stipulations of DL/T 1231.

9 Speed Control System Parameter Test

The method for the speed control system parameter test of the solar thermal generator set shall comply with the stipulations of DL/T 1235. The test conditions should be 30%PN, 65%PN and 90%PN.

NOTE: PN is the rated power of the generator set.

10 Generator Leading Phase Test

The method for the leading phase test of the solar thermal generator set shall comply with the stipulations of DL/T 1523. The test conditions should be 30%PN, 65%PN and 90%PN.

12 AGC System Test

12.1 Test Conditions

Before AGC system performance test, the system shall satisfy the following conditions:

a) The error of the load command signal between the grid dispatching and the generator set shall be within ± 0.2%; the transmission of other communication signals shall be normal;

b) The logic of the AGC auxiliary control of the generator set shall be correct;

c) The main control systems of the generator set shall be operated in an automatic mode. During the test, the primary frequency modulation function of the generator set should be disenabled.

12.2 Stable Load Performance Test

The test shall be conducted in accordance with the following steps:

a) The stable load performance test shall respectively be carried out within two load ranges: 70%PN ~ 100%PN and 20%PN ~ 40%PN;

b) It shall be ensured that within the period of 20 min before the test, and during the test, there shall be no obvious internal and external disturbances in the main control systems of the generator set;

c) Actuate the data acquisition device; record the output active power of the generator set;

d) Maintain the AGC load command or the generator set's load command unchanged; the time length of the test shall not be less than 1 h;

e) Calculate the steady-state error of the load.

12.3 Variable load performance test

The test shall be conducted in accordance with the following steps:

a) It shall be ensured that within the period of 20 min before the test, and within the period of 20 min after the end of the test, there shall be no obvious internal and external disturbances in the main control systems (excluding the load command) of the generator set;

b) The amplitude of the AGC command change shall be selected between 5%PN ~ 20%PN;

c) Actuate the data acquisition device; record the output active power of the […]

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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.

Referenced standards

Normative references

GB/T 20840.2 · GB/T 20840.3

Similar standards

GB 47739-2026|GB 47740-2026|GB/T 19141-2026|GB/T 29321-2026|GB/T 32826-2026|GB/T 32892-2026

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