Stabilization Power of a Synchronous Machine During the Discharge of Autonomous Energy Sources
2022-01-0878
03/29/2022
- Event
- Content
- The paper considers an automobile traction electric motor drive with a synchronous motor connected to a battery pack through a voltage inverter. Maintaining the power of the electric drive with fluctuations in the voltage of an autonomous energy source in discharge and changing the load is solved. The nominal (maximum permissible) power of the electric traction drive decreases in proportion to the voltage drop of the source. This factor can significantly degrade the performance of electric vehicles. The problem of stabilizing the electric traction of synchronous machines solves by algorithmic means that do not require voltage stabilizers (converters). The strategy assumes control of an electric traction drive according to the criterion of the maximum power factor of the three-phase voltage of a synchronous machine. The effect of power stabilization with a voltage drop achieves by increasing the active stator current. The development of control algorithms is based on the energy model of a synchronous machine, represented by the equations of the dynamic balance of active and reactive power. The accuracy of the simulation model increases by considering the magnetic and mechanical power losses and the nonlinear nature of the electromagnetic system of the traction machine. The results of modeling control algorithms prove the theoretical consideration.
- Citation
- Smolin, V., and Gladyshev, S., "Stabilization Power of a Synchronous Machine During the Discharge of Autonomous Energy Sources," SAE Technical Paper 2022-01-0878, 2022, .