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NSYSU Captures Gold in TPC High Voltage AMI Application Competition
  • The student team. From left: Yi-Chuan Lin, Yu-Yang Lu, Meng-Lin Tsai, Yuan-Yu Hsu, and Shan-Pu Huang
    The student team. From left: Yi-Chuan Lin, Yu-Yang Lu, Meng-Lin Tsai, Yuan-Yu Hsu, and Shan-Pu Huang
Publish date : 2017-06-16
The Taiwan Power Company (TPC) recently hosted the High Voltage Advanced Metering Infrastructure (AMI) Load Data Creative Application Competition, combining the concept of crowdsourcing and opened data. A team of students under the supervision of Chair Professor Chan-Nan Lu from NSYSU Department of Electrical Engineering entered the competition with a project on “Maintaining the Power Quality of Conservation Voltage Reduction (CVR) by Using AMI Load Data.” The team has successfully won the gold medal among 123 projects and brought home the scholarship of NTD 120,000.

The NSYSU team included Department of Electrical Engineering second year graduate student Yu-Yang Lu and Meng-Lin Tsai, and first-year graduate student Shan-Pu Huang, Yuan-Yu Hsu, and Yi-Chuan Lin. The five won the gold medal in the section of student experts. From the AMI load data, the team noticed that when the power supply maintains a certain electric quality, it can execute CVR, improve efficiency and reduce line loss while maintaining quality. Director Chin-Tun Wang of the Load Management Laboratory in the Power Research Institute of Taiwan Power Company stated that this is a very applicable dispatch strategy. Further research will be conducted on the application of the strategy.

In addition, the team highlighted that when the TPC system has an insufficient operating reserve and is on the verge of power rationing, TPC can execute CVR to mitigate the system’s pressure from power demand. Executing CVR and Real-time Data Monitoring through AMI would be an economical and timely solution to help TPC systems get through the power shortage crisis before the complete update of generators or transformers.

The team devoted about 8 months into the competition. Team member Yu-Yang Lu mentioned that the first problem that they had encountered when they entered the contest is “which problem to tackle; how to make use of the complicated data and innovate new values and solutions.” With the guidance of Chair Professor Chan-Nan Lu, the team members met with experts from various fields including doctorate students, TPC Department of Power Distribution managers, and doctors working in the China Steel Company. The discussion allowed them to comprehend the perspective of the electricity users, and finally come up with the idea of using AMI load data to execute CVR while maintaining power quality.

Another team member, Meng-Lin Tsai, mentioned that the competition topic actually had no direct relationship with each member’s personal research topic. When Chair Professor Lu asked about the progress of the project in the team’s meetings, it is always “lagging behind.” Therefore, before the deadline of the contest, the team stayed several overnights in the lab, fully devoted to working on the project.

The team highly appreciates Chair Professor Lu’s guidance, especially the concept of “grasping all chance of learning in the process of schooling.” The team expressed that the team’s courage and success are in debt to Chair Professor Lu’s encouragement. When the awards were announced, the team was filled with joy, surprise, and contentment; the joy is for winning, surprise for winning the gold medal, and contentment for feeling that the lack of sleep is worthwhile.

The two second-year graduate student team members, Yu-Yang Lu and Meng-Lin Tsai, will graduate in June. They have received the TPC scholarship while in school and will be employed in the TPC Department of System Operations after graduation. They hope to contribute what they have learned at NSYSU to the society.

The “Maintaining the Power Quality of Conservation Voltage Reduction (CVR) by Using AMI Load Data” project utilizes the load demand provided in the AMI data and arranges the users in actual distribution for simulation. Through adjusting the on-load tap changer (OLTC) of high voltage transformers, CVR can be achieved, thus proving that CVR can lessen power supply, reduce line loss and avoid distribution transformers overload. During CVR, the real-time load data reported by AMI will help to execute power status estimation and ensure the maintenance of power quality at over 0.95pu. The hypothesis is that the load profiles are all constant resistance load. If the AMI can provide more detailed user profile, more accurate simulations of user load profiles can be made in the future.
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