Mitigation of Circulating Current in Diode clamped MLI fed Induction Motor Drive Using Carrier Shifting PWM Techniques

Bharatiraja, C.; Sanjeevikumar, P.; Munda, Josiah L.; Norum, Lars; Raghu, S.

doi:10.1007/978-981-10-4762-6_6

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…In addition, it causes an increment in the electromagnetic interference (EMI) level. Therefore, reducing this current is highly recommended in the MLI system [82]. Moreover, this current has a harmful effect on the power electronics components and could cause a malfunction to these components [83].…”

Section: Circulating Currentmentioning

confidence: 99%

A State of the Art of the Multilevel Inverters with Reduced Count Components

et al. 2020

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Multilevel inverters (MLIs) have become a trend in the field of DC/AC inverters and one of the main requirements in many of the industrial applications. MLIs spread in the academic research field and replaced the conventional inverters due to the several advantages that these topologies presented over the conventional inverters, as follows. (1) Operate with a high number of steps in the output voltage waveform, which helps in reducing the level of harmonics and presents fine and clear waveforms; furthermore, reduce the voltage stress on the switching devices and gives it a long lifetime and more reliability. (2) MLIs have a low rating of the switching devices, which has a noticeable role in reducing the system cost. (3) MLIs can be operated at both higher and lower switching frequencies, which reduces the level of power losses and enhances the overall efficiency. The main problem that faces the researchers in the multilevel inverters field is to design a topology that uses the optimum number of components to ensure the low cost and obtain a high efficiency. This paper presents a description of different topologies of MLIs that were investigated in the last two decades to show the pros and cons of each topology. Also a set of performance parameters that were used to measure the effectiveness of the MLI topologies have been discussed.

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Section: Circulating Currentmentioning

confidence: 99%

A State of the Art of the Multilevel Inverters with Reduced Count Components

et al. 2020

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“…To eliminate CMV, 51 vectors are selected which generates zero CMV (25,26). Thus, flow of bearing current can be reduced which increases the performances of motor (27). This paper discusses about MPC for 5-phase 3-level inverter using SVM technique with CMV reduction.…”

Section: Introductionmentioning

confidence: 99%

Model Predictive Control of PMSM Motor Drive for Electric Vehicle Applications with Space Vector Modulation

Jayakumar

Bharatiraja

2022

ECS Trans.

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The Multi-Level Inverters (MLI) are most predominantly used in industrial applications as they reduce dv/dt ratio, switching stress of the power semiconductor switches, etc. The industries are slowly shifting from three phase inverters to five phase inverters as they produce lower current per phase, less switching losses, low Common Mode Voltage (CMV), etc. The Space Vector Modulation (SVM) is one of the controlling techniques for driving the inverters which reduces the Total Harmonic Distortion (THD) and improves the dc link balancing. The switching vectors available for five phase Three Level (3L) Neutral Point Clamped (NPC) Inverter is 243 vectors, out of which 51 vectors are selected that produce zero CMV. The controlling of the inverter is done by Model Predictive Control (MPC) Technique in which the error is reduced. The performance of the inverter is evaluated through MATLAB Simulink.

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“…It directly uses the control variable given by the control system and identifies each switching vector as a point in complex space. It is useful in improving DC link voltage utilization, reducing commutation losses and Total Harmonic Distortion (THD) [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A simple switching on-time calculation revision in multilevel inverter-space vector modulation to achieving extended voltage boundary operation

Bharatiraja

Pongiannan

Yusuff

et al. 2019

IJPEDS

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In inverters’ pulse width modulation techniques (PWM) the Space Vector PWM (SVPWM) is a smart contestant due to its direct control in nature with variables which provide the straight forward finds to each inverter switching vector. The industrial drives are acquainting to use SVPWM owing extended speed –torque region operations. However, the extended SVPWM operation is uses much mathematical calculation to predict the switching on-times, which demands high digital platform. In order to reduce this calculation in this paper a simple on-time calculation based SVPWM is proposed. The proposed SVPWM is developed for three-level multilevel inverter and the space perspective of vector analysis are established and explained. The over modulation enhances the proper power utilization capacity of voltage source inverter thereby improve the inverter output voltage and load. This proposed method tailed the similar mathematical practice as conventional two-level SVPWM for calculating sector identification and triangle determination. The approach finds the circular and hexagonal boundary on-time based on the straightforward reference vector position identification and calculates directly the switching pulse patterns for the inverter devices using an expression based on the definition of the duty cycle. The performance of the proposed SVM is simulated by MATLAB 11.b simulation software and validated with laboratory setup 2 kW, 12 switch neutral point clamped (NPC)-MLI fed 1.5 HP squirrel cage 3-phase induction motor open loop v/f control drive. The simulation and experimental results are closure and confirming the advantages of the proposed SVM method. The proposed scheme can be extended to n-level inverter and also applicable to cascaded H-bridge topology.

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Mitigation of Circulating Current in Diode clamped MLI fed Induction Motor Drive Using Carrier Shifting PWM Techniques

Cited by 4 publications

References 21 publications

A State of the Art of the Multilevel Inverters with Reduced Count Components

A State of the Art of the Multilevel Inverters with Reduced Count Components

Model Predictive Control of PMSM Motor Drive for Electric Vehicle Applications with Space Vector Modulation

A simple switching on-time calculation revision in multilevel inverter-space vector modulation to achieving extended voltage boundary operation

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