The construction, control and scheme selecting of the electricdrive control system of electricdriveoil drilling rig have been deeply studied in this paper.
针对电驱动石油钻机电气传动控制系统的构成、控制、方案选择进行了深入研究。
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When the world oil reserve is shortage, the electric car clearly gives a bright future for mankind. In the future, it will inevitably change the current drive models.