This work deals with the design of a three-phase grid-tied photovoltaic (PV) cascade H-bridge inverter for distributed power conversion. The power balancing among the phases must be properly addressed. In fact, an intra-phase power imbalance—arising from uneven irradiance and temperature conditions—generates a per-phase power imbalance. This latter can be compensated by the injection of a prope...

This study presents the boost converter-based cascaded H-bridge (CHB) multilevel inverter with improved reliability for solar PV (photovoltaic) applications. The is associated converter to enhance DC link voltage by using maximum power point tracking-perturb and observe (MPPT-P & O) technique. proposed configuration aimed toward performance analysis of CHB MLI reducing number components, lo...

The increasing demand for high-rating power supply in the distribution system causes conventional inverter topology, six step voltage source (SSVSI) unsuitable being applied as active filter (APF). Multilevel (MLI) is generally best suitable APF, but not all types of MLI can be used high-voltage applications. Among MLIs cascaded H-bridge (CHB) choice since it produce output more than twice amou...

Background and Objectives: Despite superior privileges that multiphase motors offer in comparison with their three-phase counterparts, in the field of multiphase linear induction motors (LIMs) few studies have been reported until now. To combine the advantages of both multiphase motors and linear induction motors, this paper concentrates on multiphase LIM drives considering the end effects. Met...

This paper presents Simultaneous variation and control of the output voltage and frequency, reduction in the harmonic components in load currents. These inherent features have to be employed in many industrial applications such as variable speed drives, uninterruptible power supplies and other power conversion systems. However, the reduction of the harmonic components in output currents and vol...

Among multilevel inverter topologies, asymmetric Cascaded H-Bridge (CHB) inverters have higher output-voltage levels than symmetrical ones. However, asymmetric multilevel inverters need pre-stage isolated and floating DC power sources, which make the system complicated and bulky. This paper is focused on solving the problem by using a single-core (magnetically-coupled) multiple-output forward-f...

In this paper, a novel parameter design approach of the PI controller used for individual DC voltage balancing control of cascaded H-bridge converter-based STATic synchronous COMpensator(STATCOM) is presented. By means of phase shift sinusoidal pulse width modulation, using two control loops(DC voltage control loop and phase angle shift control loop) to ensure DC voltage balance, the proposed a...

Power electronic device, nonlinear and unbalanced loads have given rise to power quality problem in distribution systems. Due to factors like competitive generation patterns in a deregulated electric grid and an increasing level of sensitive end user devices, it has become necessary to ensure both reliable and power quality to the end customer. One way to betterment the power quality is using a...

This paper proposed a simplified modeling approach for power quality (PQ) assessment of Electric Submersible Pumps (ESP) systems supplied by the two-level, neutral-point-clamped three-level, and cascaded H-bridge (CHB) multilevel inverter VFD topologies. The switching function models their analytical expressions are to understand how they can create high-frequency components that might excite r...