THD optimization of sequential switching technique based hybrid IPD modulation scheme for CMLI

Krishna, M. Vijaya; Satyanarayana, Gowri; Ganesh, K. Lakshmi; RaviKiran, D.

doi:10.1109/icsemr.2014.7043573

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…Typically, the IRP controller utilizes Clarke's conversion technique for rotating standard abc into symmetric parameters in a stationary frame [22]- [27]. The (1)…”

Section: Instantaneous Real-reactive Power Control Theorymentioning

confidence: 99%

Mitigation of PQ issues in EV charging station connected distribution system using novel RSMLI-based shunt APF

Mogilicharla,

Rao,

Moparthi

et al. 2023

IJAAS

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<span>In the present scenario, the significant use of electric vehicles (EVs) is growing rapidly in the automotive industry due to cheaper transportation, no fossil fuel required, low maintenance, no fuel cost, and low impacts on the environment over the formal internal combustion engine (ICE) vehicles. In actuality, these EVs are powered by batteries that are charged by a utility-grid-based charging facility. A power-electronic conversion-based charging device is used in this charging station to charge the battery packs in the EV system. The problem statement of this work is identified, these conversion devices in charging units proliferate the power quality of the utility grid. To overcome these problems, a classical square-wave inverter-based active power filter (APF) is employed. The major problems in classical inverters are high common-mode voltage, more harmonic profile, high dV/dt stress, high switching stress, and low efficiency. The contribution of this work is proposing the multilevel inverter (MLI) based APF for better compensation over classical inverters. In this approach, a novel reduced-switch MLI-based APF has been proposed for the mitigation of harmonic currents and also enhances the power factor in utility-grid-connected distribution systems. The effectiveness of the proposed reduced-switch multilevel inverter (RSMLI)-APF is validated by integrating the number of charging units with the MATLAB/Simulink tool, and simulation outcomes are shown along with comparisons.</span>

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“…Typically, the IRP controller utilizes Clarke's conversion technique for rotating standard abc into symmetric parameters in a stationary frame [22]- [27]. The (1)…”

Section: Instantaneous Real-reactive Power Control Theorymentioning

confidence: 99%

Mitigation of PQ issues in EV charging station connected distribution system using novel RSMLI-based shunt APF

Mogilicharla,

Rao,

Moparthi

et al. 2023

IJAAS

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“…This topology aims to address the voltage-current-related PQ issues in a multifeeder distribution system by developing a novel RSMLI-UPQC device. Nevertheless, it possesses the capability to satisfy the improved PQ characteristics by effectively reducing harmonic distortions through the utilization of pulse width modulation (PWM) techniques [23]- [25]. The novel reduced-carrier-based pulse width modulation (RCB-PWM) control technique has been employed in the control of switching operations, incorporating notable reference signal extraction schemes, within the realm of various PWM techniques.…”

Section: Introductionmentioning

confidence: 99%

A novel reduced-switch multi-level inverter based multi-device universal power-quality conditioner for PQ enhancement

Rao,

Ramana Rao

2024

IJAAS

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<span>The reduced-switch multilevel inverter (RSMLI) has garnered significant attention across various industries as a viable alternative to conventional multilevel inverter (MLI) topologies. In the realm of medium voltage high-power applications, the topologies of resonant switched MLIs are regarded as advanced due to their development with a reduced number of switching elements. The primary emphasis of the customizable multi-device universal power-quality conditioner (MD-UPQC) device is on the design and development of a significant RSMLI topology to improve power-quality (PQ) features. This study presents the development of a novel 5-level RSMLI-based MD-UPQC device, designed specifically for addressing power-quality concerns in multi-feeder distribution networks. The device facilitates uninterrupted power flow between the feeders, thereby mitigating power-quality issues. The 5-level RSMLI topology possesses the capability to decrease the necessity for a larger quantity of gate-drive circuits by implementing a switching-logic design utilizing the reduced-carrier-based pulse width modulation (PWM) technique. The 5-level RSMLI-MDUPQC device incorporates a unified voltage-current reference (UVCR) control scheme to ensure efficient operation. The functionality and efficacy of the proposed RSMLI-MDUPQC device have been assessed using the MATLAB/Simulink software tool, with the evaluation conducted under different PQ conditions. The simulation outcomes are presented for analysis and interpretation.</span>

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“…Bhanutej et al [19], a novel 9-level RSMLI topology is proposed by using 11 switches for reducing the harmonic profile in a standalone micro-grid system. In fact, these MLI topologies are controlled by using regular sinusoidal pulsewidth modulation (PWM) techniques such as phase-shift PWM and level-shift PWM techniques [20]- [25]. But it requires more carrier signals for generation of required voltage levels which increases the complex drive circuitry.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of novel 9-level RSMLI topology for grid-tied solar-PV system

Sharma,

Rao,

Amulya

2024

IJAPE

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The shortage of traditional fossil fuels like coal, petrol and natural-gas are increased day-by-day, fulfills the most of energy demand. Most of engineers are trying to maximize the energy demand by employing renewable energy with existing micro-grid system. Owing to merits, the solar-PV system plays a significant alternative among all other renewable energy sources due to abundant and virtuous nature. For grid-tied solar-PV system, the cascaded H-bridge multilevel inverter is the most significant over the classical 2-level inverter due to provision of isolated input DC sources. But the cascaded H-bridge topology is designed for limited voltage levels due to its larger number of switches for higher voltage levels, high cost, large-size, and more weight. To alleviate these demerits, a reduced-switch multilevel inverter has been generally preferable for higher voltage levels. In this work, a novel 9-level reduced-switch multilevel inverter (RSMLI) topology has been proposed by utilizing low number of switching devices. The performance of proposed novel 9-level RSMLI topology has been verified in grid-tied solar-PV system by using MATLAB/Simulink tool, simulation results are presented with attractive comparisons.

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THD optimization of sequential switching technique based hybrid IPD modulation scheme for CMLI

Cited by 6 publications

References 8 publications

Mitigation of PQ issues in EV charging station connected distribution system using novel RSMLI-based shunt APF

Mitigation of PQ issues in EV charging station connected distribution system using novel RSMLI-based shunt APF

A novel reduced-switch multi-level inverter based multi-device universal power-quality conditioner for PQ enhancement

Performance evaluation of novel 9-level RSMLI topology for grid-tied solar-PV system

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