| Summary: | 碩士 === 國立雲林科技大學 === 電機工程系碩士班 === 101 === The super-high speed motor driver with hybrid modulation strategy is proposed in
this paper. In most high speed motor, variable voltage variable frequency (VVVF)
control is used to drive different type motors. The variable output voltage power factor
correction converter and inverter are used to improve the high power factor and
efficiency. For the low speed range, the trapezoidal pulse width modulation is used to
driver motor for reduction in the switching losses and harmonic and higher line-to-line
voltage. However, trapezoidal pulse width modulation may not be suitable for super
high speed range and the dead time effect also makes the larger harmonic current, so the
six-step modulation strategy is chosen for super-high speed operation.
This paper utilizes MATLAB/Simulink to build the system structure model to
confirm the feasibility, and experimental results are also provided to present the strategy
is workable.
|
|---|
