This thesis does some corresponding researches and application works for the Tracking-Control System, the Thermoelectric Converter, the Electric Power Transducer and the AC Stabilizer of the system.

Such hoists change the power frequency through transducer and the lifting speed and the traveling speed to make the electric hoist travel more smoothly and more accurately.

This paper describes the measuring principle of optical fiber electrical field transducer used for condition monitor of electric power system, and gives the structure of the measuring system.