1 Erratum to: J. Mod. Power Syst. Clean Energy DOI 10.1007/s40565-016-0226-3

In the original publication of this article Fig. 1 has been incorrectly published due to a typesetting error. The typesetters would like to sincerely apologize for this error and regret the inconvenience caused. The correct Fig. 1 is provided in this erratum. The original article was corrected.

Fig. 1
figure 1

OSTAR function with different γ