Hangzhou Qianjing Technology Co., Ltd. Located at Hangzhou economic and technological development zone, a national-level Hi-tech development zone, is a high-tech enterprise which is engaged in the research and integration of the new generation of the intelligent oil extraction equipment and providing overall process solutions, In 2007, we began the research on the servo drive system relying on the Harbin Institute of Technology. For the first time in china, we proposed the intelligent oil extraction system with the technology of the sensorless vector control and direct drive device without reducer. After ten years of experiment and verification, the product has been finalized and can realize mass production integration. The ESPCP system developed and integrated by us has become a revolutionary product to replace the traditional manual lifting products.