The impacts of capabilities and constraints of generating units on simultaneous scheduling of energy and primary reserve |
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Authors: | Mostafa Rajabi Mashhadi M Hossein Javidi D B M Sadegh Ghazizadeh |
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Affiliation: | (1) Faculty of Electrical Engineering, Czech Technical University in Prague, Technicka 2, 16627 Prague, Czech Republic |
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Abstract: | Frequency control, as an ancillary service, is usually provided by generation reserves. Modern generating units have special
technical capabilities; e.g., their governor operation mode can be selected to be either active or passive, their ramp rate
can be selected to be either normal or fast, etc. On the other hand, generating units have some technical constraints; e.g.
some generating units cannot participate in primary frequency control at their capacity limits. In this paper, operational
capabilities and constraints of generating units are incorporated in a “simultaneous scheduling of energy and primary reserve”
problem. Furthermore, a heuristic iterative method (based on genetic algorithm) is proposed to obtain the optimal scheduling.
The impacts of capabilities and constraints on scheduling are investigated through simulation studies. Simulation results
depicts that taking these capabilities and constraints of generating units into account, not only reduces the total operational
cost of generating units, but also will end up with a feasible solution for the system, even in cases where the previously
proposed methods fail. |
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Keywords: | |
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