The five-phase permanent magnet synchronous motor drum uses advanced multi-phase permanent magnet motor technology to demonstrate excellent fault tolerance and high reliability. Thanks to the redundancy of multiphase motors, when one or both phases in the motor fail, the power can be reduced in the absence of phase without restart or shutdown through clever control strategies.
| Five-phase permanent magnet synchronous drum motor VS Three-phase permanent magnet synchronous drum motor | |||
| Compare items | 5-phase permanent magnet drum drive | 3-phase permanent magnet drum drive | |
| Structure | Winding | The motor input is 5 windings with a phase angle of 72° | The motor input is 3 windings with a phase angle of 120° |
| Winding connection | Star joint | Star joint、 Triangular joints | |
| parameterperformance | Line voltage | Example: 5-phase 599V at 1140V input | Example: 3-phase 1140V when input 1140V |
| Line current | Example: 160kW、78A at 1140V | Example: 160kW、104A at 1140V | |
| Control the power supply | 3-phase 1140 input ; 5-phase 0-599V output vector inverter | 3-phase 1140 input;3-phase 0-1140V output vector inverter | |
| Inverter control algorithms | Inductive vector control / Sensory vector control | Inductive vector control / Sensory vector control | |
Model Description
Higher fault tolerance
The Polyphase motor has a higher degree of redundancy, and when a phase loss fault occurs, the system can be operated without disturbance by changing the control strategy, without unnecessary non-stop, and has higher reliability.
Higher stability
It can better resist the influence of negative factors such as load changes and voltage fluctuations.
Greater efficiency
The winding coefficient is high, the fundamental current is small, and the copper consumption is small.
Less torque ripple
As the number of phases of the motor increases, the amplitude of torque ripple decreases, thus effectively reducing the vibration and noise of the motor.
Higher torque density
On the premise of not increasing the torque ripple, the output torque of the drive system can be increased by high-harmonic current injection.
