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Applying DBFC with Integrated Optimized Pulsed Pattern to Maximize Voltage Utilization with Low Distortion in Automotive Traction Drives
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| Author(s) |
Michael SAUR, Maximilian HEPP, Martin SILVA, Wolfgang WONDRAK |
| Abstract |
The advantages of higher voltage utilization in automotive traction drives are higher maximum power and lower losses due to less flux weakening current. Applying overmodulation (voltagesup.91\%), in some PWM sections pulse dropping occurs and the switching frequency decreases. Additionally, in the second overmodulation region (voltage sup.95\%) the degree-of-freedom of the voltage vector angle is constrained. This is a considerable challenge for Current Vector Control (CVC). This research proposes deadbeat flux trajectory control (DBFC) integrating optimized synchronous pulse pattern (OPP) to maximize the voltage utilization up to 99\% but mitigating the disadvantages of six-step (100\%): DC-bus and phase distortion. It is demonstrated that DBFC is one single control law enabling closed-loop control in SVPWM, synchronous OPP (p=3) and six-step without any switching or transitioning between various control laws. |
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| Filename: | 0518-epe2023-full-12365513.pdf |
| Filesize: | 889.5 KB |
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| Type |
Members Only |
| Date |
Last modified 2023-09-24 by System |
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