The inverter avoids the problem of the neutral point potential variation and simplifies the circuit without using coupled inductors, also main switches and commutation switches have the same switching frequency and the voltage stress of all switches is equal to the input DC voltage. The 10 kW experimental prototype is built.
Under the load adaptive commutation control, the soft-switching inverter''s efficiency in the whole load range is higher than that under the fixed time control. The more the load becomes light, the more the efficiency will be improved obviously. The proposed inverter realises high-efficiency power conversion in the whole load range.
Through the obtained basic characteristic, to reduce the commutation failures of the LCC inverter, the coordinated DC voltage control strategy with dynamic limiter is designed to enhance the AC voltage stability. And the coordinated DC voltage control method coped with the dynamic limiters is also designed.
Especially in the light load, the DC-link voltage utilisation rate will reduce and the auxiliary circuit will produce more conduction loss, so the efficiency of the soft-switching inverter is reduced. A novel RDCL three-phase soft-switching inverter and its load adaptive commutation control are proposed in this paper.
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To eliminate the circulation current loss in resonant dc-link inverters, an efficient parallel resonant dc-link inverter without circulation current loss is proposed in this article. …
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To realise a soft-switching inverter with a simple structure, high-efficiency and low-voltage stress, a novel resonant DC-link three-phase soft-switching inverter and its load …
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Natural commutation is applied in applications that are inherently alternating current (AC) applications, such as phase-controlled …
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This paper conducts a design-oriented transient stability analysis of LCC-HVDC inverters under DC voltage control during grid faults, focusing on subsequent commutation …
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The selection of the most suitable commutation technique depends on specific application requirements, cost considerations, and desired performance. By understanding the …
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Related Post: Difference between Inverter & UPS – Uninterruptible Power Supply Different Types of Inverters Inverters are …
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In view of the distortion of the commutation voltage waveform caused by the low-order background harmonics, the DC system is more prone to commutation failure, and the …
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In order to get a soft switching inverter with simple structure, high efficiency and low voltage stress, a novel resonant DC link three-phase soft switching inverter and load adaptive …
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To realise a soft-switching inverter with a simple structure, high-efficiency and low-voltage stress, a novel resonant DC-link three …
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To solve the problem of large circulation current loss in a parallel resonant dc link inverter, the no-circulation current commutation modulation strategy based on SVPWM …
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After the fault occurs, the commutation voltage drops, the DC current rises very fast, and the inverter side changes from constant voltage control to α -max control.
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Subsequent commutation failure (SCF) is an inherent issue for the line-commutated-converter based high voltage direct current (LCC-HVDC) in the receiving end. …
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Through the obtained basic characteristic, to reduce the commutation failures of the LCC inverter, the coordinated DC voltage control strategy with dynamic limiter is designed …
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Commutation failures in high-voltage direct current (HVDC) transmission systems often occur within inverter stations, posing challenges to the safe and consistent operation of …
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The commutation failure of high voltage direct current (HVDC) systems could lead to unstable operation of the alternating current/direct …
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Commutation failures in high-voltage direct current (HVDC) transmission systems often occur within inverter stations, posing …
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Concerning the difficulty in predicting commutation failure in HVDC transmission system, a commutation failure prediction method based on the energy accumulation …
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This application report documents the implementation of the Voltage Fed Full Bridge isolated DC-DC converter followed by the Full-Bridge DC-AC converter using TMS320F28069 …
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While the output voltage of a two-level PWM inverter takes either the zero or High level, three-level and multilevel PWM inverters provide the output voltage at multiple levels by dividing the …
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To realise a soft-switching inverter with a simple structure, high-efficiency and low-voltage stress, a novel resonant DC-link three-phase soft-switching inverter and its load adaptive …
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The above diagram indicates an inductor and capacitor filter positioned at the output of the rectifier to make smooth of dc output. …
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