ENHANCEMENT OF STATIC FREQUENCY CONVERTER START-UP RELIABILITY FOR PUMPED STORAGE POWER UNITS OF GUANGZHOU PUMPED STORAGE POWER STATION
Journal Title: International Journal of Electrical and Electronics Engineering Research (IJEEER) - Year 2017, Vol 7, Issue 2
Abstract
With the quick development of the power grid in Guangdong Province, pumped storage power stations have been developing in large capacity form of grid energy storage in Guangdong Power Grid for meeting the high electricity demand under the rapid economic growth. Since the pumped storage power stations act as peaking plants and provide emergency response to maintain as afe and reliable power supply in the network systems, the reliability of pumps and generators start-up becomes critical to network operations. The 4 x 300MW pumped storage units of the Guangzhou Pumped Storage Power Station – Phase I [1] (GPSPS ‘A’ Station) were commissioned in 1990s and the success rate of unit start-up was 97%, comparing to the 99% achieved by the Guangzhou Pumped Storage Power Station – Phase II (GPSPS ‘B’ Station) commissioned in 2000s. This article describes the development process for enhancing the operation reliability of GPSPS including strategy formulation, field trial (iteration), and continuous improvement on the detection of initial rotor position methods for static frequency converter (SFC) start-up. The improvement process mainly comprises two stages of implementation (first stage in 2005-2007, second stage in July 2010) followed by a performance evaluation period (from 2011 to 2015). The operation records indicated that the success rate of rotor position detection has been improved to100%. The overall motor start-up reliability has been improved from 97% to 99%.
Authors and Affiliations
HUANGWEI 1, WONG WAI LUN, CHOW FU KIT EDWARD
Keywords
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