A Novel Series 24-Pulse Rectifier Operating in Low Harmonic State Based on Auxiliary Passive Injection at DC Side

Chen, Xiaoqiang; Bai, Tun; Wang, Ying; Gong, Jiangyun; Mu, Xiuqing; Chang, Zhanning

doi:10.3390/electronics13061160

Electronics

2024

DOI: 10.3390/electronics13061160

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A Novel Series 24-Pulse Rectifier Operating in Low Harmonic State Based on Auxiliary Passive Injection at DC Side

Xiaoqiang Chen,

Tun Bai,

Ying Wang

et al.

Abstract: To reduce the current harmonics on the input side of a multi-pulse rectifier, this paper proposes a low harmonic current source series multi-pulse rectifier based on an auxiliary passive injection circuit at the DC side. The rectifier only needs to add an auxiliary passive injection circuit on the DC side of the series 12-pulse rectifier, which can change its AC input voltage from 12-step waves to 24-step waves. We analyzed the working mode of the rectifier, optimized the optimal turn ratio of the injection tr… Show more

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Cited by 3 publications

References 22 publications

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Overview of Main Electrolyzer Technologies and Power Electronic Converter Topologies for Enabling Hydrogen Production Through Water Electrolysis

El Kattel,

Praça,

Mayer

et al. 2024

Circuit Theory & Apps

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This manuscript offers an in‐depth exploration of electrolysis, focusing on the various types of electrolyzers and providing a detailed analysis of their respective advantages and disadvantages. Additionally, it presents a comprehensive review of DC–DC and AC–DC converters, highlighting their essential roles in green hydrogen production and explaining their functionality and applications in detail. Furthermore, the manuscript examines the diverse power electronic systems used in green hydrogen production, underscoring the crucial importance of converters. The investigation also covers effective strategies for integrating these technologies, with the goal of optimizing the green hydrogen production process. This study aims to significantly advance knowledge in sustainable technologies, emphasizing the pivotal role of power electronics in electrolysis, fostering the generation of renewable energy, and reinforcing the commitment to a greener and more sustainable future.

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Overview of Main Electrolyzer Technologies and Power Electronic Converter Topologies for Enabling Hydrogen Production Through Water Electrolysis

El Kattel,

Praça,

Mayer

et al. 2024

Circuit Theory & Apps

View full text Add to dashboard Cite

show abstract

An Improved Series 36-Pulse Rectifier Based on Dual Passive Pulse-Doubling Circuit on the System DC Side

Mu,

Chen,

et al. 2024

Electronics

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The series-type 12-pulse rectifier generates a large amount of harmonics in the AC side current due to the strong nonlinearity of its rectifying diodes, causing serious harmonic pollution to the power grid. This article proposes a series 36-pulse rectifier based on a DC side dual passive frequency-doubling circuit to suppress the AC side current harmonics of a 12-pulse rectifier. The rectifier uses two symmetrical passive pulse multiplication circuits to regulate the circulation in the DC side circuit, increasing the output voltage and current state of the rectifier bridge, thereby increasing the number of pulses in the rectifier from 12 times to 36 times. Firstly, the working principle of the rectifier and the working mode of the dual passive frequency-doubling circuit were analyzed. Secondly, the harmonic suppression mechanism of the rectifier input current was revealed, and the frequency-doubling characteristics of the load voltage were analyzed. Finally, the correctness of the theoretical analysis was verified through a semi-physical platform. The verification and comparison results show that under the optimal conditions of the injecting transformer turns ratio, the DPPC can not only reduce the THD value of the input current by about 1/3 (from 14.87% to 4.78%) but can also increase the fluctuation frequency of the load voltage by 3 times (from 12 to 36), while improving the power quality of the AC/DC side rectifier and achieving the low harmonic operation of the rectifier. The proposed 36-pulse rectifier can effectively suppress harmonics; it has the advantages of simple structure, strong robustness, and high output voltage gain, and it is suitable for medium-voltage and high-voltage high-power rectification applications.

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A Novel Shunt Zigzag Double-Tap Low-Harmonic Multi-Pulse Rectifier Based on a Three-Stage Power Electronic Phase-Shifting Transformer

Mu,

Chen,

Liu

et al. 2024

Sensors

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To solve the problem of the large size of traditional industrial frequency phase-shift transformers and the harmonic distortion of multi-pulse wave rectifier systems, this paper proposes a three-stage shunt zigzag power electronic phase-shift transformer based on a double-tap multi-pulse wave rectifier, which combines the power factor correction (PFC) converter with the voltage-type SPWM inverter circuit to form a power electronic converter to realize the frequency boost and power factor correction. Through AC–DC–AC conversion, the frequency of the three-phase AC input voltage is increased, the number of core and coil turns in the transformer is reduced to reduce the size of the phase-shifter transformer, a zigzag structure of the phase-shifter transformer is used to solve the unbalanced distribution of current between the diode bridges, and a passive harmonic suppression method on the DC side is used to generate a loop current by using a group of single-phase rectifier bridges to regulate the input line current of the phase-shifter transformer. The phase-shifted voltage is input into two three-phase diode rectifier bridges to rectify and supply power to the load. Simulation and semi-physical test results show that the proposed method reduces the total harmonic distortion (THD) value of the input current of the phase-shifted transformer to 7.17%, and the THD value of the grid-side input current is further reduced to 2.49%, which meets the harmonic standard and realizes the purpose of power factor correction as well as being more suitable for high-power applications.

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A Novel Series 24-Pulse Rectifier Operating in Low Harmonic State Based on Auxiliary Passive Injection at DC Side

Cited by 3 publications

References 22 publications

Overview of Main Electrolyzer Technologies and Power Electronic Converter Topologies for Enabling Hydrogen Production Through Water Electrolysis

Overview of Main Electrolyzer Technologies and Power Electronic Converter Topologies for Enabling Hydrogen Production Through Water Electrolysis

An Improved Series 36-Pulse Rectifier Based on Dual Passive Pulse-Doubling Circuit on the System DC Side

A Novel Shunt Zigzag Double-Tap Low-Harmonic Multi-Pulse Rectifier Based on a Three-Stage Power Electronic Phase-Shifting Transformer

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