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High-Speed Real-Time Dynamic Economic Load Dispatch

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4 Author(s)
Yorino, N. ; Electr. Power & Energy Syst. Lab., Hiroshima Univ., Hiroshima, Japan ; Hafiz, H.M. ; Sasaki, Y. ; Zoka, Y.

A large amount of renewable energy penetration may cause a serious problem in load dispatch in the future power system, where the amount of controllable generators will decrease while disturbances increase. Therefore, a new economic load dispatch (ELD) method is required in order to make the best use of the ramp-rate capability of existing generators to cope with the disturbances caused by loads as well as by renewable energy generations. This paper proposes a new dynamic ELD method to meet the general requirements for real-time use in a future power system, where load following capability is critically limited. The method is also satisfactory from an economical point of view, and is suitable for high-speed online application due to fast and steady computation time. The proposed method has been successfully tested on several systems supplying a typical morning to noon demand profile.

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Power Systems, IEEE Transactions on  (Volume:27 ,  Issue: 2 )