GB/T 20989-2007 (English Version) PDF

Standard No.: GB/T 20989-2007
Language: Chinese, Available in English version
Release Date: 2007
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2018-02
Replace By: GB/T 20989-2017
Latest: GB/T 20989-2017

Scope: This standard applies to all grid commutation HVDC converter stations. Such converter stations are used in power systems to convert power. This standard assumes that a 12-pulse thyristor converter is used, but a 6-pulse thyristor converter can also refer to this standard. In some projects, synchronous compensators or static var compensators may be connected to the AC bus of the HVDC converter station. This standard does not cover methods for determining the losses of these devices. A typical HVDC device is shown in Figure 1. This standard proposes a set of standard methods for determining the total losses of HVDC converter stations. This calculation method covers all parts except the equipment mentioned above, defines no-load losses and operating losses, and proposes a calculation method to determine these losses using measured parameters as much as possible. If the design of the converter station uses new components or new circuit structures compared with the typical design assumed in this standard, or uses special auxiliary circuits that may affect the losses, the losses should be determined according to the specific circumstances.

GB/T 20989-2007 Referenced Document

GB 1094.1-1996 Power transformers. Part 1: General
GB/T 10229-1988 Reactors
GB/T 11024.1-2001 Shunt capacitors for a.c.power systems having a rated voltage above 1kV Part 1: General--Performance,testing and rating--Safety requirements--Guide for installation and operation
GB/T 13498-2007 Terminology for high-voltage direct current(HVDC)transmission
GB/T 15291-1994 Semiconductor devices. Part 6: Thyristors
GB/T 20990.1-2007 Thyristor valves for high voltage direct current(HVDC)power transmission- Part 1: Electrical testing

2017 GB/T 20989-2017 Determination of power losses in high-voltage direct current (HVDC) converter stations
2007 GB/T 20989-2007 Determination of power losses in high-voltage direct current(HVDC) converter stations