Mitigation of Harmonics for Eleven-Level Cascaded Multilevel Inverter using SPWM and SHE Techniques

Sreelakshmi, S.; Sujatha, M.

doi:10.29042/2020-10-2-168-177

Cited by 3 publications

(3 citation statements)

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“…The width of the pulses is contingent upon the reference wave and is also influenced by the modulation index range. It is widely recognized that this approach produces pulses of varying width and magnitude, allowing the power provided to the engine to be regulated by a series of PWM control signals sent to the gates [28].…”

Section: Sinusoidal Pulse Width Modulation (Spwm)mentioning

confidence: 99%

Optimal DC Voltage Control of a Photovoltaic Water Pumping System for Induction Motor Applications

Belaroussi,

Terki,

Dahnoun

et al. 2024

JESA

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Photovoltaic (PV) water pumping systems address water accessibility challenges in isolated regions by offering sustainable, self-sufficient solutions that do not rely on the power grid. These systems provide enduring advantages, such as reduced operational expenses, while also making a substantial contribution to agricultural progress and enhancing the quality of life in rural areas. The utilization of solar energy for powering rural areas has been significantly reduced due to recent technological breakthroughs. The objective of this study was to utilize MATLAB-Simulink models to simulate a photovoltaic water pumping system and generate an ideal direct current (DC) voltage at the input of the inverter. In addition, the machine side utilizes space vector modulation (DTC-SVM), while the DC voltage side employs fuzzy logic control (FLC). The fuzzy logic methodology is highly effective in dealing with non-linear and complicated systems, providing strong control in situations where conventional methods may face difficulties. DTC-SVM improves the management of motors by providing superior dynamic performance, minimizing torque fluctuations, and increasing overall efficiency. This makes it a highly valuable technique for motor control systems. When the DTC-SVM method is applied to the induction motor instead of the field-oriented control (FOC) and conventional direct torque control (DTC), it was discovered that the centrifugal pump exhibits a more rapid dynamic reaction and performs more effectively.

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Section: Sinusoidal Pulse Width Modulation (Spwm)mentioning

confidence: 99%

Optimal DC Voltage Control of a Photovoltaic Water Pumping System for Induction Motor Applications

Belaroussi,

Terki,

Dahnoun

et al. 2024

JESA

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“…The effect of mitigation of harmonics using SPWM and SHE techniques for R-load in [15], to improve the inverter performance for 11-level inverter at 10 kHz and 50 Hz. A vast area of research has been reported in references [16]- [29] for MLI. Implementation of a hybrid PWM technique having a combination of normal PD-SPWM and fuzzy controller for level and polarity generation respectively in [16], [17] for 11-level cascaded multilevel DC-link (CMLDCL) inverter and obtained better output performance.…”

Section: Introductionmentioning

confidence: 99%

“…A vast area of research has been reported in references [16]- [29] for MLI. Implementation of a hybrid PWM technique having a combination of normal PD-SPWM and fuzzy controller for level and polarity generation respectively in [16], [17] for 11-level cascaded multilevel DC-link (CMLDCL) inverter and obtained better output performance. However, the drawback is the lower fundamental component of output voltage and THD is poor.…”

Section: Introductionmentioning

confidence: 99%

Multi-level inverter with novel carrier pulse width modulation technique for high voltage applications

Sreelakshmi

Sujatha²,

Rahul³

2022

IJEECS

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<span>The present work deals with multilevel inverters (MLI) with modified carrier pulse width modulation technique and its application, especially in solar-based applications due to its modularity in structure and suitability for medium or high-power applications. Several multilevel inverters are introduced for various applications. One of the drawbacks of these inverters is high total harmonic distortion (THD) value in the output which impacts the power quality. The main objective of this work is to improve the power quality, thereby increasing the life and performance of the overall system at the consumer side. The most popular and compact cascaded multilevel DC-link inverter (CMDCLI) is considered for study and employed for 11-level operation. In general, sinusoidal pulse width modulation (SPWM) technique is used for control of inverter. However, the present work proposes a modified carrier-based hybrid pulse width modulation (HPWM) technique and has been tested with CMLDCLI. This novel technique compares the THD performance results with normal carrier wave considering R-L load. The results are analyzed in MATLAB environment and are validated with experimental results.</span>

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Modified Design and Implementation of Single Phase Seven Level Inverter with Different PWM Techniques

Sreelakshmi

Sujatha²,

Rahul

2021

2021 2nd International Conference for Emerging Technology (INCET)

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Mitigation of Harmonics for Eleven-Level Cascaded Multilevel Inverter using SPWM and SHE Techniques

Cited by 3 publications

References 0 publications

Optimal DC Voltage Control of a Photovoltaic Water Pumping System for Induction Motor Applications

Optimal DC Voltage Control of a Photovoltaic Water Pumping System for Induction Motor Applications

Multi-level inverter with novel carrier pulse width modulation technique for high voltage applications

Modified Design and Implementation of Single Phase Seven Level Inverter with Different PWM Techniques

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