Research On Unit Commitment With Direct Load Control

Unit commitment is an important aspect of optimal operation of power system. Since it could bring in significant annual financial savings in power generating cost, it continues to be the main optimization task in everyday power generation schedule. Direct load control (DLC) plays an important role in the present electrical energy scenario now, as an efficient way to reduce and postpone the construction of electric network, to improve the efficient and reliability of the network operation, to reduce the electric energy consumption, to improve environmental quality etc. However, currently, optimization of unit commitment does not take into account the role of direct load control. So, it is difficult to obtain an economic optimal solution. In this paper, the cost of direct load control was innovative introduced into the system operation cost, so that the direct load control and unit commitment can be consider as a whole and establish the mathematical model. On the basis of comparing the advantages and disadvantages of various algorithms, and guided by the optimization theory, I Choose the mixed integer linear programming algorithm for problem solving, and implement it by the MATLAB programming. The10units testing case prove the feasibility and cost-saving role of considering the direct load control with unit commitment. And studied the impact of compensation rates and load rebound speed on the system cost savings...