Parallel Resonant DC Link Inverter Topology and Analysis of Its Operation Principle

Chu, Enhui; Xie, Haolin; Chen, Zhifang; Bao, Jiaqi; Zhou, Yue; Zhang, Huaguang

doi:10.1109/jestpe.2019.2914482

Cited by 9 publications

(4 citation statements)

References 27 publications

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“…The shunt resonant capacitor of the main tubes is removed, and part of the resonant current during resonance is detached from the main switches. Its topology is simpler than Chu et al [10], and all tubes can realize soft switching action. At the same time, it has a controllable zero voltage notch time.…”

Section: Introductionmentioning

confidence: 97%

“…In response to the sophistication of the topology shown by Chu et al [10], a structurally simple modified resonant DC link inverter, very elaborate and entire, is shown in this article. The shunt resonant capacitor of the main tubes is removed, and part of the resonant current during resonance is detached from the main switches.…”

Section: Introductionmentioning

confidence: 99%

“…However, topology design sophistication can be induced by the inclusion of coupled inductors or transformers., which is not conducive to the practical application of the topology. The topology proposed by Chu et al [10] does not require coupled inductors or transformers, so this topology is much more widely used. However, its topology is more complex.…”

Section: Introductionmentioning

confidence: 99%

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An improved resonant DC link inverter with a simple structure

Xia,

Jia,

Song

2024

J. Phys.: Conf. Ser.

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To further streamline the architecture of the resonant DC link inverter, this article shows an improved resonant DC link inverter with straightforward architecture. There is no oscillating capacitor on the main tubes. Part of the resonant current during resonance is detached from the main tubes. The soft-switching action of all the tubes of this topology can be effectuated by using a set of resonant cavities, and its topology is simple. It has main tubes for ZVS movement and auxiliary tubes for ZCS movement. Also, the circuit has a controllable zero voltage notch duration. The article will elaborate on the operating scheme of the circuit. Eventually, the simulation outcomes are given to validate the effectiveness of the circuit.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An improved resonant DC link inverter with a simple structure

Xia,

Jia,

Song

2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

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“…This necessity brings the need for a complex control structure [18][19][20]. For this reason, the control of inverters in auxiliary circuits created with fewer elements is simpler and less complicated [21].…”

mentioning

confidence: 99%

A New Soft-Switching Control Technique and Loss Analysis for Parallel Resonant DC-Link Inverter Connected to the Grid

Donuk

Gümüş

2022

Teh. vjesn.

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This study is recommended to develop a soft-switching control software infrastructure that enables more efficient and effective use of parallel resonant DC link circuits. The fact that the control technique can be easily applied to the soft switching circuit makes it important in this field. With this proposed study, lower voltage ripple and higher efficiency are obtained. To see the results of the technique and to study its effect, a study was carried out on a grid connected inverter. When the frequency changes between 5-15 kHz and 5-10 kW power is transmitted to the grid, the soft switching effect is studied and the efficiency is increased. A software model for calculating the power losses of semiconductor switches has also been established. Using this modeling approach, the power consumption is calculated in detail and the loss analysis is performed using catalog data of semiconductor switches. The accuracy of the obtained results was compared with another simulator. While the PRDCL inverter using the new proposed switching technique transmits 10 kW of power to the grid, the efficiency increased from 97.67% to 98.61% at a switching frequency of 5 kHz, from 96.82% to 98.58% at a switching frequency of 10 kHz, and from 95.61% to 98.55% at a switching frequency of 15 kHz.

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