| Summary: | 碩士 === 中原大學 === 電機工程研究所 === 104 === The rectification mechanism of the conventional diode produces a severe
current distortion to the input port which results in an unwanted injection
harmonics into the power grid. However, there are some limits on the amount
of harmonic injection for all equipment to the power grid. For example, the
standard of the International Electro-technical Commission IEC 61000-3-2
confines the input current has to be less than 16A , whereas the standard IEC
1000-3-12 restricts the input current has to be greater than 16A. The diode
rectifier has been replaced by the power quality converter which has low
harmonics with high power factor performance.
In this technical report, we apply the one cycle control (OCC) strategy into the
circuit of the active power factor correction (PFC). The OCC scheme is a
nonlinear control technology which has been used in many industrial
applications. This controller has a simple structure which consists of
integrators, flip-flops, comparators and so on. The topology of the power factor
correction has used the boost type, whereas simulations are utilized the software
SIMPLIS.
Base on simulation results, an analog controlled prototype for the three-phase
III
boost PFC has been developed and tested in a power of 9kW and a DC bus
voltage of 800V, whose control IC is the IR1150 device and power stage consists
of three single-phase PFC converters. Furthermore, experiments are executed
as well. Satisfactory results are obtained to confirm the effectiveness and the
feasibility of our theoretical analyses and design considerations.
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