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Effect of interchange on short-term hydro-thermal scheduling

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3 Author(s)
Wu, R.N. ; Nat. Taiwan Inst. of Technol., Taipei, Taiwan ; Lee, T.H. ; Hill, E.F.

In short-term hydro-thermal scheduling, proper coordination of energy limited import resources with existing hydro-thermal resources often results in a significant improvement in utility revenue and system operating conditions. To investigate the effect of interchange resource scheduling, a peak-shaving method (PSM) and an economic scheduling method (ESM) have been applied, in a situation where a very detailed hydro model is required, to solve a hydro subsystem scheduling problem including interchange import. Based on a basic interchange scheduling strategy, the results demonstrate a need for coordination between the hydro and the interchange subsystems. The proposed coordination strategy provides up 1.6% production cost saving and 2.9% extra hydro yield, which are relatively significant

Published in:

Power Systems, IEEE Transactions on  (Volume:6 ,  Issue: 3 )