Research on Neutral-Point Balancing for Three-Level Space Voltage Vector Converter

Yun Tao Yue; Zhi Yong Xu

doi:10.4028/www.scientific.net/AMR.748.473

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 748Research on Neutral-Point Balancing for...

Research on Neutral-Point Balancing for Three-Level Space Voltage Vector Converter

Abstract:

A novel hybrid clamped dual-PWM three-level converter topology is proposed for induction motor drives in this paper. The switching states of hybrid clamp three-level converters increase to sixty-four from twenty-seven switching states of diode clamp three-level converters. In order to realize optimization of its redundant voltage space vectors by detecting voltage of clamp capacitor and difference of capacitor voltage in DC side, Generating an optimized switching pattern, The hybrid clamped three-level converter increases the voltage levels number, reducing the harmonics associated to the commutation frequency and limiting the dv/dt by all the switches . It can quickly balance the DC voltage, Realized system of 4-Quardant Running. the control circuit and main circuit was designed with DSP and CPLD, experimentation results proved it is very effective and practicability.

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Periodical:

Advanced Materials Research (Volume 748)

Pages:

473-476

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.748.473

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Online since:

August 2013

Authors:

Yun Tao Yue, Zhi Yong Xu

Keywords:

Dual-PWM, Hybrid Clamped, Space Voltage Vector, Three Level Converter

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References

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