The Economic Dispatch Planning Based on Considerations of Renewable Energy

• Main Authors: Yi-Jhih LIN, 林俋志
• Other Authors: Ming-Tse Kuo
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/74653031076185489716

碩士 === 國立臺灣科技大學 === 電機工程系 === 101 === Taiwan is surrounded by the ocean. Therefore the wind blown from the sea is stable and inexhaustible. On the contrary, Taiwan is lack of fossil fuels, which need to be bought from other nations. Since the wind source is an advantage, the wind power must be continuously developed. On the other hand, in order to lower the cost and the load of thermal units, the hydroelectric power can be used as an aid. Wind speed forecast model was built by Weibull distribution and change wind speed into electricity(MW/hr) by taking the wind speed-power graph as a reference. Wind power is so random that people can't dispatch it instantly and therefore, this thesis suggests to transfer wind power into hydroelectric power. During the off peak, wind power will be delivered to pumped-storage hydroelectricity so that it could be released to assist thermal units during the peak. For the thermal power, this thesis uses the priority list method to calculate Unit Commitment problem and then use Particle Swarm Optimization to calculate the power output of each unit. In order to confirm the efficiency and accuracy, firstly, this thesis uses the common data of IEEE units and then compare the results. Finally, the simulation was done by using the model of thermal units, wind turbine and pumped-storage hydroelectricity data. The average calculation time is 4.13 second. The total cost is near optimal and better than GA, and the load of thermal units was lower.