An improved topology of digitally-controlled single-phase single-stage high DC voltage converter
This paper presents An improved topology of digitally-controlled single-phase single-stage high dc voltage converter where CPLD is used to develop the PWM switching pattern which will be discussed in detail. The proposed system utilizes a single-phase AC input supply. The power switching devices in...
محفوظ في:
| المؤلفون الرئيسيون: | , , |
|---|---|
| التنسيق: | Conference or Workshop Item |
| اللغة: | English |
| منشور في: |
2006
|
| الموضوعات: | |
| الوصول للمادة أونلاين: | http://eprints.um.edu.my/4896/1/An_improved_topology_of_digitally-controlled_single-phase_single-stage_high_DC_voltage_converter.pdf http://eprints.um.edu.my/4896/ http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1711787 |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| الملخص: | This paper presents An improved topology of digitally-controlled single-phase single-stage high dc voltage converter where CPLD is used to develop the PWM switching pattern which will be discussed in detail. The proposed system utilizes a single-phase AC input supply. The power switching devices in the controlled bridge are controlled by the multiple-pulse Pulse Width Modulation (PWM) switching technique to minimize the low order harmonics present on the AC side of the converter. A low pass Alter is incorporated in the circuit to Alter out unwanted harmonics and provide a sinusoidal AC supply current. A high frequency transformer with 1:1 ratio is used in the design to provide galvanic isolation for better circuit performance and protection. The optimum operation of transformer core in four quadrant of B-H curve is also considered in the proposed converter topology. A laboratory prototype of the converter is developed and tested. Experimental results are compared with the simulation results to illustrate the effectiveness of the proposed technique. |
|---|