This paper deals with the study of different type of MPPT (Maximum Power Point Tracking) algorithms in a solar photovoltaic system (SPV) in order to extract maximum power from the solar modules. Here the solar array is integrated with the grid to provide power, as the traditional sources of power generation is depleting at a faster rate and also to provide power during peak hours in urban areas...

Stable operation of grid-connected converters with the LCL filter is essential. Variations grid impedance and consequently, variations resonance frequency, can push system toward instability. Also, delay that comes from sampling PWM, could worsen stability condition. Thus, control should be designed by considering these non-ideal factors. To fill in this gap, brief presents an effective but sim...

The control strategy and design of an AC/DC/AC IGBT-PMW power converter for PMSG-based variable-speed wind energy conversion systems (VSWECS) operation in grid/load-connected mode are presented. VSWECS consists of a PMSG connected to a AC-DC IGBT-based PWM rectifier and a DC/AC IGBT-based PWM inverter with LCL filter. In VSWECS, AC/DC/AC power converter is employed to convert the variable frequ...

This paper presents an impedance-matching-based control scheme for the harmonic resonance damping of multiple grid-connected-converters (GCCs) with LCL filters. As indicated in this paper, harmonic resonance occurs if a GCC possesses an output impedance that is not matched with the rest of the network in some specific frequency bands. It is also revealed that the resonance frequency is associat...

Voltage source inverter (VSI) had been used in dc traction power substation to deliver the trains braking energy back utility grid. To mitigate low order harmonics components, pulse-width-modulation (PWM) technique is commonly VSI controlled. As a result, ac voltage and current waveforms may contain high frequency ripples. This paper proposes using LCL-filter with series <em>R</em>-...

This article proposes a power sharing control method based on the linear quadratic regulator with optimal reference tracking (LQR-ORT) for three-phase inverter-based generators using inductor-capacitor-inductor (LCL) filters islanded mode. Compared to single-input single-output (SISO)-based controllers, LQR-ORT controller increases robustness margins and reduces value of error inputs during tra...