Abstract :
In the above-named article [ibid., IEEE Trans. Ind. Electron., vol. 60, no. 12, pp. 5400-5410, Dec. 2013], there were some errors in (7) and (8). In (7), there is a duplication of a "+" sign. In addition, the authors note that (8) also contains redundant terms and is incorrect. The correct versions of (7) and (8) are given here.