A new magnetic linked three-phase multilevel inverter with reduced number of switches and balanced DC sources

Mondol, Md. Halim; Biswas, Shuvra Prokash; Hosain, Md. Kamal

doi:10.1007/s00202-021-01318-1

Cited by 7 publications

(3 citation statements)

References 28 publications

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“…grid to compensate the harmonic loading. (5) gives the value of DC bus voltage as can be seen in Fig. 4.…”

Section: Resultsmentioning

confidence: 99%

“…However, they suffer from drawbacks such as increment in the number of cells for higher voltage requirement and hence, increment in DC supplies (cascaded hybrid bridge MLIs), increased system cost and losses and loss of system reliability [3], [4]. The neutral point capacitor type and flying capacitor type MLI, though unlike cascaded hybrid bridge, have single DC source, but they suffer from the drawback of voltage imbalance [5] - [7].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

Satpathy

2023

Preprint

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This work focuses on a new topology-control based D-STATCOM solution with reduced DC bus voltage requirement and with an excellent grid side performances. The proposed concept consists of a main shunt converter and a series converter with a transformer to achieve the desired DC bus reduction. The active damping based on capacitor current feedback and associated additional capacitor current sensor requirement are eliminated by using a proposed double controller structure for series and shunt converters with only series current as a controlled variable. Moreover, the stability related issues based on converter inductor selection is studied extensively for the above controller and superiority of the proposed concept is demonstrated. The proposed solution is verified through simulation studies and through a scaled-down experimental prototype.

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“…grid to compensate the harmonic loading. (5) gives the value of DC bus voltage as can be seen in Fig. 4.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

Satpathy

2023

Preprint

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“…The MLI comprises many switches. Depending upon the arrangement of switches and phase angles between them, the MLIs are broadly classified into three types [32,33]: 1) Cascaded H-Bridge MLI; 2) Diode Clamped MLI, and 3) Flying Capacitor MLI. Out of the above three varieties of MLI, the CHB-MLI outperforms the other two MLIs due to the following advantages: 1) it does not need any capacitor or diode for clamping; 2) it can achieve the same quantity of voltage levels requiring significantly less number of switching; 3) reduced switching losses and stress of device; and 4) it uses fewer power electronics components such as a diode, capacitor, etc.…”

Section: Multilevel Invertermentioning

confidence: 99%

Robust Modified Flower Pollination Algorithm for Power Quality Enhancement in an Autonomous 31-Level Cascaded H-Bridge Photovoltaic Inverter with Partial Shading Conditions

Sahu¹,

Nayak

Choudhury

2022

IJRITCC

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The effect of global warming and the scarcity of fossil fuels has created an enormous problem in today’s era. To overcome such a problem, renewable energy sources, particularly solar energy, play a crucial role in meeting the developing need for power. However, the design of the Solar Photovoltaic (PV) system is interrupted by various factors such as the effect of temperature, isolation, aging, partial shading conditions, etc. Among all the factors mentioned, partial shading results in the significant diminution of power. To address this shading effect and enhance the flexibility of the PV system in terms of better utilization and energy extraction, a 31-Level Cascaded H-Bridge Multilevel Inverter (CHB-MLI) has been implemented to the autonomous PV system comprising of Maximum Power Point Tracking (MPPT) controller, boost converter and variable loads in MATLAB/Simulink architecture. To track maximum power from PV during varying irradiance and temperature and to further improve the system performance in terms of better convergence speed, an MPPT system with a Modified Flower Pollination Algorithm (MFPA) based PID controller has been proposed in this paper. To justify the suggested approach, the is-landed PV system is led to variation in irradiance and load. A detailed comparison of the proposed MFPA technique with classical control techniques has been meticulously discussed. The results obtained indicate that the suggested MFPA tuned PID with MLI outperforms the conventional methods in better system stability, reduced harmonics, and enhanced capacity to track maximum power from the PV system. In addition to this, the Total Harmonic Distortion (THD) using Fast Fourier Transform (FFT) has been found to verify IEEE-1547 power quality constraints. The values are found to be well within limits, thus justifying its real-time applications.

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Design and control of a novel topology for multilevel inverters using high frequency link

Hataş

Almalı

2023

Electric Power Systems Research

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A new magnetic linked three-phase multilevel inverter with reduced number of switches and balanced DC sources

Cited by 7 publications

References 28 publications

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

A Novel Controller Strategy for LCL Damping in Reduced DC Voltage fed D-STATCOM

Robust Modified Flower Pollination Algorithm for Power Quality Enhancement in an Autonomous 31-Level Cascaded H-Bridge Photovoltaic Inverter with Partial Shading Conditions

Design and control of a novel topology for multilevel inverters using high frequency link

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