Design of series-parallel switched rectifier topology for dual-wound generator
To address the issue of large voltage fluctuations in the power take-off generator due to the wide speed range of the vehicle engine under different operating conditions,a dual-wound generator winding structure and dual-wound series-parallel switching circuit are designed and simulated for verification.The results indicate that both series and parallel ideal output voltages meet the design requirements.A design plan is created for the thyristor assembly,natural commutation point detection circuit,and pulse transformer drive circuit.Prototypes are manufactured and tested in both laboratory and field settings.When the generator operates at low speeds,the voltage is low,so serial rectification is utilized to increase the output voltage.At higher speeds,parallel rectification is employed to decrease the output voltage,ensuring that the rectified voltage meets the input voltage range required by the subsequent inverter.Laboratory tests demonstrate that the designed system achieves dual-wound series-parallel switching with no interruptions in voltage or current,meeting the basic design goals.Field tests show that the dual-wound switching control system performs voltage series-parallel switching under various conditions,meeting the expected requirements for operation under high-power 40 kW conditions.
power take-off generatordual-wound generatorseries-parallel switchingthyristor control
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维普
