A Study on Optimization of Cooperative Operation of Controllable Generators and Batteries in Microgrids Considering Operational Benefits

摘要

This paper contributes an alternative selection for microgridoperators by relaxing the supply-demand balance constraint.Oppose to conventional method which includes the power balanceconstraint, the proposed method introduces the penalty to relax itand allow violation, to know the losses caused by possibleimbalanced power with consideration of operational benefits. In thetransition of penalty factor, if it is dramatically reduced, it is easierto find the best optimal solution by our proposed algorithm. Thealternative extension relaxes problem difficulties by ourapproximate solution. The results show that our proposal has apossibility to bring the benefits to microgrid operators and provethe usefulness of our proposal. This work was supported partiallyby JSPS KAKENHI Grant Number 16K06215.