This paper presents a grid-connected system for renewable energy source (RES) applications. The proposed consists of modified switched-capacitor (SC) based multilevel inverter and DC-DC flyback converter. By using the converter voltages DC-link capacitors are adjusted to same values. SC-based has benefits like limited capacitor charging spike, reasonable size, power density, cost per output pow...

In this paper, dynamic performance of a transformerless cascaded PWM static synchronous shunt compensator (STATCOM) based on a novel control scheme is investigated for bus voltage regulation in a 6.6kV distribution system. The transformerless STATCOM consists of a thirteen-level cascaded H-bridge inverter, in which each voltage source H-bridge inverter should be equipped with a floating and iso...

Although the range of possible applications of the VHDL based MixED module [1] is smaller than the respective range of other mixed-signal simulators, e.g. [24], the MixED system has been shown to allow for a number of useful mixed-signal simulations, e.g. an analog inverter with operational amplifier (OA) [5], a switched capacitor circuit with OA [6], a phase-locked loop (PLL) [7] and a ∆Σ modu...

This paper discusses the design of a repetitive feedback controller for a grid-connected two-level three-phase voltagesource inverter connected between a DC source and the grid through an LCL filter. The controller incorporates a classical two loop feedback of the output current and the capacitor current in addition to a repetitive feedback loop. The results show that the proposed technique imp...

In design of a parallel resonant induction heating system, choosing a proper capacitancefor the resonant circuit is quite important. The capacitance affects the resonant frequency, outputpower, Q-factor, heating efficiency and power factor. In this paper, the role of equivalent seriesresistance (ESR) in the choice of capacitance is significantly recognized. Optimal value of resonancecapacitor i...

This paper presents an investigation of five-Level Cascaded H – bridge (CHB) Inverter as Distribution Static Compensator (DSTATCOM) in Power System (PS) for compensation of reactive power and harmonics. The advantages of CHB inverter are low harmonic distortion, reduced number of switches and suppression of switching losses.The DSTATCOM helps to improve the power factor and eliminate the Total ...

6.1 INTRODUCTION The previous chapters have discussed the development of the MPPT algorithm and the control of the DC-DC converter in a standalone PV system. A grid-connected PV system is composed of a photovoltaic array, DC-DC converter, DC link capacitor, single phase DC-AC inverter, filter inductor, power grid, and non-linear load. The grid interconnection of a PV power generation system has...