摘要(英) |
This thesis focuses on investigation and statistics of voltage sags related to power quality at High-Tech Industry in power system of Taiwan Power Company. Excellent power quality is crucial for high-tech industries. While power supply becoming abnormal the production process of the industry may have a significant impact, so the power quality of high-tech industrial park is considerably important. In this study, the high-tech industry power quality issues are discussed and the appropriate management strategies are also proposed to enhance customer satisfaction. By carefully checking the measurement results, some recommended solutions to mitigating power quality problems will be provided to utility and customers.
Firstly, the customer satisfaction index to electricity supply and industry quality management methods including the operation of the quality management system and Six Sigma spirit are investigated in this paper. The business status and SWOT analysis of a case company are also described.
Then, the voltage sag and its international standard as well as Taipower voltage sag monitoring system, which has been installed in some high-tech industrial parks are introduced. The 6 years data from 2006 to 2011 in three major Science-Based Industrial Parks on voltage sags classified by causes and severity are analyzed. Based on the cumulative statistical distribution chart of happened event number, it reveals a clear downward trend year by year. The performance could be accredited to the joint effort among utility and customers for many years. By comparing domestic and foreign researches, Taipower’s index of power supply has well satisfied most customers. It is much better than the United States and Canada. This result gives a lot of positive encouragement to the domestic industry on quality of power supply.
Moreover, according to a customer satisfaction survey about power supply, over 95% of customers give positive assessment, and the evaluation score approximate the optimal score of service industry.
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