A Series-Connected 24-Pulse AC–DC Converter With Double-Diode Harmonic Suppression Circuit

Wang, Jingfang; Zhao, Chen; Zhang, Jingnan; Yao, Xuliang; Yu, Tianlong; Liu, Teng; Chen, Qiming

doi:10.1109/tpel.2022.3227096

Cited by 5 publications

(4 citation statements)

References 25 publications

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“…The harmonic suppression circuit comprises an AST, two diodes, and multiple switches. In comparison to the passive harmonic suppression methods in [17][18][19][20][21][22] and the active harmonic suppression methods in [23][24][25], the harmonic suppression ability is significantly enhanced. Unlike the active methods in [23][24][25], the operating frequency is decreased by tens or even hundreds of times, resulting in a reduction of high-order harmonics and contributing to the mitigation of load voltage ripple.…”

Section: Introductionmentioning

confidence: 98%

“…To ensure three-phase balance and enhance input power quality, various DC link harmonic suppression methods are proposed, primarily categorized as passive, active, and hybrid methods. The passive methods in [17][18][19][20][21][22] typically involve an auxiliary single transformer (AST) and multiple diodes for harmonic suppression. In [17][18][19], the theoretical THD of the input current is reduced from 15.2% to approximately 7.6%, and the experimental results show a decrease from about 10% to 4%, suppressing the (12k±1)-th harmonics.…”

Section: Introductionmentioning

confidence: 99%

“…The passive methods in [17][18][19][20][21][22] typically involve an auxiliary single transformer (AST) and multiple diodes for harmonic suppression. In [17][18][19], the theoretical THD of the input current is reduced from 15.2% to approximately 7.6%, and the experimental results show a decrease from about 10% to 4%, suppressing the (12k±1)-th harmonics. In [20][21][22], the theoretical THD of the input current is reduced from 15.2% to about 5%, with experimental results around 3%, effectively suppressing most of the (12k±1)-th and (24k±1)-th harmonics.…”

Section: Introductionmentioning

confidence: 99%

“…However, the switches induce high-order harmonic pollution and diminish system reliability. According to [17][18][19][20][21][22][23][24][25], MPRs employing passive harmonic suppression methods exhibit low input power quality and high load voltage ripple. Despite active harmonic suppression methods enhancing harmonic suppression capability, high-order harmonics still contribute to load voltage ripple.…”

Section: Introductionmentioning

confidence: 99%

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An Accelerator Power Supply Based on Multi-Pulse Rectifier

Li,

Gao,

Meng

2024

Preprint

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To enhance the power quality of the accelerator power supply system, a series-connected multi-pulse rectifier (MPR) is proposed, utilizing a novel hybrid harmonic suppression method. The operating modes are analyzed by considering the topology of the rectifier. The turn ratio and switching angle are determined based on the operating mode, with the goal of minimizing the total harmonic distortion (THD) of the input voltage. To further study the performance of the rectifier and lay a foundation for its application of accelerator power supply system, the relationship among the amplitude and frequency of input voltage, the input inductors the load and the output voltage is researched. Testing results show that after using the proposed harmonic suppression method, the capacity of the injection transformer is only about 2% of the output power, the THD values of the input voltages and currents reduce significantly, the output voltage has low ripple with different loads.

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