Shanghai Dasu produces electric products dedicated to hydropower generation machinery. Mainly used in pumped storage power stations. The motor is characterized by bidirectional operation, frequent start and stop, and frequent frequency and phase modulation operation. We have more stringent requirements for the entire motor design, such as: voltage level, temperature rise, and insulation level requirements , Power factor, stability, transient reactance, sub-transient reactance, operation mode (number of working condition conversions and intervals), phase modulation operation requirements, load frequency control (LFC), starting power; allowable voltage drop, availability requirements At present, the supporting use of equipment in the hydropower industry has been well received and has broad prospects.