کنفرانس مهندسی برق ایران

صفحه اصلی / سی و سومین کنفرانس بین المللی مهندسی برق

A Fault-Tolerant Strategy for Load Non-Interrupted Power Supply in CHB Converter Based on Modified Level Shift PWM

نویسندگان :

Farzaneh Aslani-Gaznag¹ Armin Panahi² Yousef Neyshabouri³

1- دانشگاه ارومیه 2- دانشگاه ارومیه 3- دانشگاه ارومیه

کلمات کلیدی :

Multilevel converter،Cascaded H-bridge (CHB)،Active rectifier،Fault tolerance

چکیده :

This paper introduces a fault-tolerant control strategy for single-phase Cascaded H-Bridge (CHB) in rectifier application that ensures uninterrupted operation despite semiconductor power switch failures. The proposed method utilizes the redundant switching states in the CHB topology to bypass faulty switches, maintaining power supply to the load without requiring disconnection of DC loads or bypassing the entire affected cells. To realize the mentioned objectives, the faulty H-bridge cell is reconfigured considering operational constraints for the loads continuous power supply and proper functionality under faults. A modified level-shifted PWM technique is presented for post-fault operation through which the balance of DC capacitors voltages is maintained. Simulation results for a three-cell CHB rectifier validate the technique's effectiveness in balancing DC-link voltages, uninterrupted power supplying to the DC loads, and maintaining low total harmonic distortion in the AC side, even under single or multiple switch faults and unbalanced load conditions.

لیست مقالات

لیست مقالات بایگانی شده

Computational Insights into the Superior Performance of ψ-Graphene in Li-S Batteries: A DFT Study

Donna Rashidi - Maryam Abbasi - Leila Sadeghbeigy - Matin Bakhtavari - Ebrahim Nadimi

Sensor Faults Diagnosis in T-S Fuzzy Discrete Descriptor Systems Using Design a New Unknown Input Observer

Masoud Shafiee - Amir Abolfazl Suratgar - Mehdi Mirshahi

Kickback noise reduction and offset cancellation technique for dynamic latch comparator

Mansoure Yousefirad - Mohammad Yavari

Design and Control of a Novel Multi-port Bidirectional Buck-Boost Converter Suitable for Hybrid Electric Vehicle Charging Stations

Amir Safaeinasab - Homayon Soltani Gohari - Karim Abbaszadeh

Optimal Path Planning of Mobile Robots using IsoCost-Based Dynamic Programming

Fatemeh Alvankarian - Ahmad Kalhor - Mehdi Tale Masouleh

Wideband Rat-race Hybrid Coupler Using Ridge Gap Waveguide Technology

Zahra Akhoondmahdi - Ahmad Bakhtafrouz

بهبود بازدهی انرژی در اینترنت اشیاء باند باریک با وفقی‌سازی لینک به کمک یادگیری عمیق

سمانه امیریان - محمدعلی سبقتی

Automated Optic Disc Segmentation in Low-Quality Retinopathy of Prematurity Retinal Images

Abolfazl Karimiyan Abdar - Reza AghaeiZadeh Zoroofi - Naser Shoeibi - Sare Safi - Alireza Ramezani - Homayoun Nikkhah - Hamid Safi - Mohammad Reza Ansari Astaneh

Atrial Fibrillation (AF) Detection Using Deep Learning with GAN-based Data Augmentation

Amirhossein Akhoondkazemi - Arash Vashagh - Sayed Jalal Zahabi - Davood Shafie

پیش‌بینی توان تولیدی توربین‌های بادی با روش‌های حافظه کوتاه‌مدت طولانی و ماشین تقویت‌کننده‌ی گرادیان سبک

سید متین ملکوتی - مهدی منصوری - امیر ریخته گرغیاثی

ثمین همایش، سامانه مدیریت کنفرانس ها و جشنواره ها - نگارش 40.4.2