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Journal of Zhejiang University SCIENCE A 2003 Vol.4 No.6 P.658-665


Applications of cascade multilevel inverters

Author(s):  PENG Fang-zen, QIAN Zhao-ming

Affiliation(s):  College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; more

Corresponding email(s):   qian@cee.zju.edu.cn

Key Words:  Cascade inverter, Multilevel inverter, Utility application, Power supply

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PENG Fang-zen, QIAN Zhao-ming. Applications of cascade multilevel inverters[J]. Journal of Zhejiang University Science A, 2003, 4(6): 658-665.

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Cascade multilevel inverters have been developed for electric utility applications. A cascade M-level inverter consists of (M-1)/2 H-bridges in which each bridge's dc voltage is supported by its own dc capacitor. The new inverter can: (1) generate almost sinusoidal waveform voltage while only switching one time per fundamental cycle; (2) dispense with multi-pulse inverters' transformers used in conventional utility interfaces and static var compensators; (3) enables direct parallel or series transformer-less connection to medium- and high-voltage power systems. In short, the cascade inverter is much more efficient and suitable for utility applications than traditional multi-pulse and pulse width modulation (PWM) inverters. The authors have experimentally demonstrated the superiority of the new inverter for power supply, (hybrid) electric vehicle (EV) motor drive, reactive power (var) and harmonic compensation. This paper summarizes the features, feasibility, and control schemes of the cascade inverter for utility applications including utility interface of renewable energy, voltage regulation, var compensation, and harmonic filtering in power systems. Analytical, simulated, and experimental results demonstrated the superiority of the new inverters.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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Open peer comments: Debate/Discuss/Question/Opinion



2014-09-29 02:06:53

very good paper


2014-07-22 14:13:28

i require this paper for research reference.


2014-05-07 13:57:57

Very good this is simple and nice thing

mahalakshmi@anna university<mahalakshmikarikalan@gmail.com>

2014-05-02 12:46:41

the abstract says about the utility applications

durga prasad@Swarnandhra college of engineering<durgaprasad_garapati@yahoo.co.in>

2014-04-09 16:02:13

i require thi s paper for research reference.


2014-04-04 22:27:12

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