@incollection{Weiguo11, author = {Song Shoujun and Liu Weiguo}, title = {Application of Improved PID Controller in Motor Drive System}, booktitle = {PID Control}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {Tamer Mansour}, chapter = {4}, doi = {10.5772/14963}, url = {https://doi.org/10.5772/14963} }