Performance analysis of cascaded multilevel inverter using modified multicarrier PWM technique

Chinmayi,; Shivaleelavathi, B. G.

doi:10.1109/icimia.2017.7975521

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…The research work carried in [33]- [37] present a novel modulating wave for MCPWM technique to address the issue of underutilization of DC bus in pure sine MCPWM technique. The authors propose a novel Elliptical modulating wave which is compared with carrier waves for generating PWM pulses for MCPWM technique (EMC PWM) [32] [34 ]. The performance of the CHBMLI is investigated using proposed novel EMC PWM technique.…”

Section: Elliptical Multi Carrier Pwm Technique (Emc Pwm)mentioning

confidence: 99%

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Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion

Shivaleelavathi

Srikanth²,

Yatnalli

2020

emitter

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Nowadays solar power has become an alternate method of power generation for standalone systems for both urban and rural electrification. The Power Electronics converters used for the power conversion should provide quality AC output to have near sinusoidal voltage. The inverter topology and the PWM technique of the inverter play a vital role in providing quality output. This paper reviews recent contribution to establish the current status and development of the technology to provide reader with an insightful review of multilevel inverters and its control strategy. A brief overview of Multi Level Inverters (MLI) topology and advantages of Cascaded H-Bridge Multi Level Inverter (CHBMLI) for solar power conversion is presented and the various control strategies for CHBMLI are discussed with view point of quality output. Among the different PWM techniques discussed, the Elliptical Multi Carrier PWM (EMC PWM) control strategy is the new modulation technique which successfully improves the DC bus utilization without over-modulation and without adding third harmonic to fundamental frequency. Also, the technique is successful in reducing the %THD at the output voltage. The control strategy is simple even with increased level of output voltage, which is not possible in SVPWM technique. Hence, the EMC PWM technique is having better performance when compared to Multi Carrier PWM (MCPWM) technique, Space Vector PWM (SVPWM) technique and Third Harmonic Injection PWM (THIPWM) technique.

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Section: Elliptical Multi Carrier Pwm Technique (Emc Pwm)mentioning

confidence: 99%

“…9 shows the EMC PWM technique. The performance of this novel modulating wave is compared with conventional pure sine wave MCPWM technique [34]. The CHBMLI with proposed control strategy is employed to convert the power in solar power generation.…”

Section: Elliptical Multi Carrier Pwm Technique (Emc Pwm)mentioning

confidence: 99%

Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion

Shivaleelavathi

Srikanth²,

Yatnalli

2020

emitter

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“…In this paper an effort has been made to address the drawback of poor voltage utilization of SPWM technique. This paper uses a new modulating wave elliptical wave [15]- [16] replacing sine modulating wave in SPWM technique. This result in increased DC bus utilization as in case of SVPWM technique to improve output voltage range and reduce the harmonics.…”

Section: Introductionmentioning

confidence: 99%

Digital Control of Three-Phase Cascaded Multilevel Inverter Using FPGA Wavect Tool

Srikanth

Shivaleelavathi

2018

IJPEDS

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<span>The multi carrier modulation technique is the most employed PWM technique for cascaded multilevel inverter (CMLI) since this control strategy can be easily extended to higher number of levels of output compared to space vector PWM technique. This paper proposes a modified multi carrier PWM technique for three-phase CMLI. The proposed PWM technique has been implemented using MATLAB Xilinx System Generator, which automatically generate code from system model. The hardware implementation of the three-phase CMLI has been carried out to substantiate the working of proposed PWM technique. Novel FPGA Wavect digital controller is used to generate the PWM pulses, which is a real time simulator and controller. This digital controller improves the accuracy of the hardware implementation. Hardware implementation of proposed control strategy for three-phase CMLI with RL load proves that the proposed PWM technique results in improved power output quality with reduced harmonic components.</span>

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A novel implementation of digital control strategy for multilevel inverters using FPGA Wavect controller

Chinmayi

Shivaleelavathi

2017

2017 IEEE 18th Workshop on Control and Modeling for Power Electronics (COMPEL)

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Performance analysis of cascaded multilevel inverter using modified multicarrier PWM technique

Cited by 4 publications

References 11 publications

Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion

Review on Multi Level Inverter Topologies and Control Strategies for Solar Power Conversion

Digital Control of Three-Phase Cascaded Multilevel Inverter Using FPGA Wavect Tool

A novel implementation of digital control strategy for multilevel inverters using FPGA Wavect controller

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