METHOD AND DEVICE FOR ECONOMIC LOAD DISTRIBUTION OF FUEL GENERATOR

PROBLEM TO BE SOLVED: To provide a method and device for economic load distribution of a fuel generator, which equally handles an operation state of respective generators at an operation output band and a state during band switching, by virtually estimating the state of band switching as a band. SOLUTION: The state of band switching of each generator is virtually estimated as operation output band, and taking an integer variable representing particular output band and particular time zone and a continuous variable representing operation at particular level of output and particular time zone, as a state variable. The minimizing of total power generation cost at all time zones during economic load distribution period is set as a target function, with demand/supply balance restriction, generator operable band upper/lower limit restriction, generator output upper/lower limit restriction at the output band, and band switching time restriction, taken as restriction conditions. The target function and restriction condition are mixed together to be a formula as an integer plan issue. By acquiring a solution of it, operation output band and operation output of each time zone are provided. COPYRIGHT: (C)2010,JPO&INPIT