Control of Hybrid Active Power Filter to Reduce Harmonics of 3-Phase Cap-Less Inverter

Lee, Dong‐Geun; Kim, Rae-Young

doi:10.1007/s42835-022-01228-7

Cited by 1 publication

(2 citation statements)

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“…In single-phase PLL, phase angle information is extracted using the v q value, and the angular frequency based on f ac is added as a feed-forward term (ω ff ), as shown in Equation (10), assuming that the frequency variation of the grid voltage is slight.…”

Section: Coordinate Transformation and Pllmentioning

confidence: 99%

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Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle

Lee,

Park,

et al. 2023

Electronics

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Compared to the conventional boost power factor correction (PFC) converter, a totem-pole bridgeless PFC has high efficiency because it does not have an input diode rectifier stage, but a current spike may occur when the polarity of the grid voltage changes. This paper proposes a digital control algorithm for bridgeless totem-pole PFC with a simple control structure based on the phase angle of grid voltage. The proposed algorithm has a PI-based double-loop control structure and performs DC-link voltage and input inductor current control. Rectifying switches operate based on the proposed rectification algorithm using phase angle information calculated through a single-phase phase-locked loop (PLL) to prevent current spikes. The feed-forward duty ratio value is calculated according to the polarity of the grid voltage and added to the double-loop controller to perform appropriate power factor control. The performance and feasibility of the proposed control algorithm are verified through a 3 kW hardware prototype.

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Section: Coordinate Transformation and Pllmentioning

confidence: 99%

“…In the modern power conversion industry, there has been a continuous need to achieve high efficiency converters [10][11][12]. Among the boost PFC topologies, there are various topologies such as single-switch boost PFC [13], semi-bridgeless PFC [14], and interleaved boost PFC [15].…”

Section: Introductionmentioning

confidence: 99%