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Yun-Su Kim, Il-Yop Chung and Seung-Il Moon
This paper presents a method to seek the PI controller parameters of a PMSG wind turbine to improve control performance. Since operating conditions vary with the wind speed, therefore the PI controller parameters should be determined as a function of the...
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Cheol-Hee Yoo, Il-Yop Chung, Hyun-Jae Yoo and Sung-Soo Hong
Grid codes in many countries require low-voltage ride-through (LVRT) capability to maintain power system stability and reliability during grid fault conditions. To meet the LVRT requirement, wind power systems must stay connected to the grid and also sup...
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Yun-Su Kim, Il-Yop Chung and Seung-Il Moon
Variable-speed wind turbines (VSWTs) typically use a maximum power-point tracking (MPPT) method to optimize wind-energy acquisition. MPPT can be implemented by regulating the rotor speed or by adjusting the active power. The former, termed speed-control ...
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Sang-Jin Oh, Cheol-Hee Yoo, Il-Yop Chung and Dong-Jun Won
Microgrids are autonomous low-voltage power distribution systems that contain multiple distributed energy resources (DERs) and smart loads that can provide power system operation flexibility. To effectively control and coordinate multiple DERs and loads ...
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