This paper presents new and efficient modulation techniques applied on the recently introduced compact nine-level switched-capacitor inverter (C9LSCI). The also discusses performance of under selective harmonic elimination (SHE) mitigation (SHM) based heuristic Bat-Algorithm (BA) technique. Two employing CD-type carrier waves M-type are proposed, showing a rise in efficiency, an increase RMS vo...

There is always a need to create efficient and optimized converters deliver the best possible results achieve better THD profile in waveform output. One way by controlling switching of power switches using appropriate modulation schemes. While numerous works have been done proposing new strategies for multilevel inverters, this work will compare multicarrier PWM near-to-level control (NLC) In p...

Voltage Sag is one of the Power Quality problem and it become severe to industrial customers. Voltage sag causes miss operation to several sensitive equipments. This problem can be mitigating with the Dynamic Voltage Restorer. DVR is a solid state device which is connected in series between the source and load voltages. In this Dynamic Voltage Restorer is implemented using Capacitor Clamped Mul...

This paper presents a novel topology of single-phase multilevel inverter for low and high power applications. It consists of polarity (Level) generation circuit and H Bridge. The proposed topology can produce higher output voltage levels by connecting dc voltage sources   in series and parallel. The proposed topology utilizes minimum number of power electronic devices which helps in reduction o...

Multilevel inverters have become more popular over the years in high power medium voltage applications without the use of a transformer and with promise of less disturbance & reduced harmonic distortion. In this paper, two types of multilevel converter in three phase configuration, cascaded H-Bridge multilevel inverter (CMLI) and diode clamped multilevel inverter (DCMLI) of 5 and 7-level are mo...

The Quality of the output power from the utilities has become a major concern of the modern industries. These power quality associated problems are voltage sag, surge, flicker, voltage imbalance, interruptions and harmonic problems. These power quality problems may cause problems to the industries ranging from malfunctioning of equipment to complete plant shut down. It has been identified that ...

Modular multilevel converters (MMCs) have been conceived as an alternative in front-end converter applications to enhance the system’s reliability, minimize total harmonic distortion, and improve power quality. These utilize several DC-link capacitors electronic switches, along with switches operating high switching frequencies, attain desired characteristics. Thereby, this paper systematically...