CHB multilevel inverter with sliding mode controller for DSTATCOM applications

Chenchireddy, Kalagotla; Jegathesan, Varghese

doi:10.11591/ijpeds.v14.i4.pp2195-2203

Cited by 11 publications

(1 citation statement)

References 19 publications

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“…So, if we choose the corner frequency in an optimized way, then for all the harmonics considered here, the filter gain is 0. This arrangement provides boosting voltages along with enhancing the power quality [25]. For further analysis, the PsD PWM approach at a switching frequency of 3.5 KHz is taken into consideration.…”

Section: Effect Of Change In Number Of Levels (With Pdpwm) Change In ...mentioning

confidence: 99%

Multilevel inverter: harmonic analysis with and without filters for RL load using SPWM techniques

Nagarajappa,

Deshpande

2024

IJEECS

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Multilevel inverter (MLI) gains more attraction compared to conventional inverter as it generates a staircase output voltage that mimics sine waves of desired output voltage. Cascaded H-bridge (CHB) topology is taken into consideration owing to several benefits over conventional inverters. Various levels of CHB (3 and 5 level) inverters are compared on diverse parameters. In this paper level shift sinusoidal pulse width modulation technique is considered resulting in reduced lower order harmonic (LOH) distortion and improve the quality of output current and voltage depending on the load. Since, the LOH are too dangerous for power electronic circuits. An attempt to shift all the LOH above 50th order depending on the modulation technique with analogy for selecting an appropriate switching frequency is highlighted. The effect of change in switching frequency and modulation index (MI) on RMS output voltage, % voltage total harmonic distortion (VTHD), output power factor with different modulation techniques such as phase disposition pulse width modulation (PsD PWM), phase opposite disposition (POD PWM), alternative phase opposition disposition (APOD PWM) is portrayed in the paper. Further, to boost the performance a unique filter circuits with optimal design values of Inductance and capacitance driven with IEEE 519-2022 standards. The effectiveness in terms of with and without filter is verified and validated using MATLAB.

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Section: Effect Of Change In Number Of Levels (With Pdpwm) Change In ...mentioning

confidence: 99%

Multilevel inverter: harmonic analysis with and without filters for RL load using SPWM techniques

Nagarajappa,

Deshpande

2024

IJEECS

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Source Current Harmonic Cancellation in Distribution System by Using ANFIS Controller

Chenchireddy,

Varma,

Lasya

et al. 2024

E3S Web Conf.

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Ensuring a reliable and stable power supply to consumers is of utmost importance in modern distribution systems. Many power quality issues, such as voltage fluctuations, harmonic distortions, transient events, load forecasting, and voltage sag/swell compensation, can lead to operational inefficiencies and compromise the performance of sensitive electronic equipment. The main causes of power quality problems are short circuits and overloads, reactive power imbalance, transients, equipment malfunctions, and ground issues. The ANFIS model leverages the strengths of both neural networks and fuzzy logic to effectively address power quality challenges. Thus, by using the ANFIS model for power quality improvement, we reduce the supply current harmonics by maintaining IEEE 519 standards. The stimulation results are implemented using MATLAB Simulink software. The simulation results are verified source current, load current and supply voltage, The THD value of source current.

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IGBT Based Four Quadrant Chopper Drive Closed Loop Control for DC

Santhosh,

Sree Jyothi,

Anusha

et al. 2024

E3S Web Conf.

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These manuscripts present a closed-loop IGBT-based fourquadrant chopper drive system for DC motors. This paper intends to improve DC motor control’s accuracy, effectiveness, and adaptability in a variety of applications. In this paper, we build and put into practice a closed-loop control system that incorporates IGBT in order to manage the speed and torque of DC motors in both directions. A feedback system with sensors for measuring motor speed and current is used in the closed-loop control scheme to ensure perfect regulation of motor parameters. The IGBT-based chopper drive architecture allows for smooth switching between forward and reverse motor operation as well as dynamic braking, making it appropriate for applications requiring four-quadrant operation. The main benefits of our suggested system are greater motor protection through fault detection and quick responses to external disturbances, improved speed and torque management, and lower energy consumption. We show experimental data that demonstrate our design’s capacity to maintain stable motor functioning across a variety of operating situations, validating its usefulness in real-world applications. The presented system simulation result is verified in MATLAB/Simulink software. The demonstrated results are motor speed, torque, current and voltage.

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CHB multilevel inverter with sliding mode controller for DSTATCOM applications

Cited by 11 publications

References 19 publications

Multilevel inverter: harmonic analysis with and without filters for RL load using SPWM techniques

Multilevel inverter: harmonic analysis with and without filters for RL load using SPWM techniques

Source Current Harmonic Cancellation in Distribution System by Using ANFIS Controller

IGBT Based Four Quadrant Chopper Drive Closed Loop Control for DC

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