Solving the problem of electric generator units combination with multiple fuel option using lagrange multiplier theory
Corressponding author's email:
kienlc@hcmute.edu.vnKeywords:
lagrange multiplier theory, electric generatorAbstract
This paper presents an approach to solve the unit commitment problem with multiple fuel options. Traditionally, each generating unit used to each fuel options with a segmented piecewise quadratic functions, so that it is not difficult to solve them. However, it is more realistic to represent the fuel cost function for each fossil fired plants as a segmented piece-wise quadratic functions. Those units are faced with the difficulty of determining which is the most economical fuel to burn. Therefore, this paper presents an approach to solve the unit commitment problem with multiple fuel options. An advantage of the method is to formulate Lagrange mathematical function easily based on the Lagrange multiplier theory. The simulation result for 10 generator system are compared with others methods to show that the approach is a new method and an effective method to solve miningzing generator cost problem of generating units with multiple fuel option.
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