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Solar matching systems, which are specialized systems for use in sunlight-type plant factories, have recently been attracting significant attention. In such systems, filtered blue and red light, which are necessary for photosynthesis, are applied to plant growth, while the unneeded green light is used for electric power generation. Since accurate estimates of photovoltaic (PV) power generation amounts...
A new compact and easy-to-achieve edge termination featuring the n-p double rings and all-cover field plates is presented for silicon high-voltage devices. This structure can divide and share much more voltage at each n-p double ring than its conventional counterpart does and thus largely shrink the lateral spreading of the depletion region. At a given blocking voltage, it helps save the chip area,...
This paper presents a control method of class E2 dc-dc converter with adjustable the peak switch voltage under input voltage fluctuation Class E2 dc-dc converter, which is one of the converter suitable for high operating frequency is studied. Class E2 dc-dc converter composed of a Class E amplifier and Class E rectifier. The amplifier side and rectifier side of class E2 dc-dc converter can achieve...
This paper presents a novel compact AC/AC converter suitable for hybrid microgrids. The proposed topology is used to interconnect two three-phase renewable energy resources and one three-phase load to the grid, side by side with the appropriate generalized pulse width modulation and control method of the microgrid power flow. The proposed topology, generalized pulse width modulation, and the utilized...
This paper proposes a investigation of two well known linear filtering procedures to improve the performance of a phase-locked loops (PLL) based on the second-order generalized integrator phase-locked loop (SOGI-PLL). The first of these procedures is the usage of the moving average filter (MAF) to be applied on the synchronous dq voltages produced in of the stages of the SOGI-PLL. The second one is...
The electric power system is moving rapidly towards an increased penetration of renewable energy resources. The new power to gas (PtG) technology has been recently introduced as a means to prevent renewable generation curtailment and to store any excess of renewable energy production during off-peak periods. This paper proposes a methodology for simultaneously studying the combined system flow of...
Differential power processing (DPP) structure present obvious advantages in improving the energy output and overall efficiency of a photovoltaic system under the partial shading conditions. This paper presents a novel minimum-power tracking (MPT) algorithm for the two-stage PV-PV DPP structure, where each PV is implemented with the maximum power point tracking (MPPT) control while the central control...
In this study, a three-phase four switch inverter topology is proposed for PV systems. In power stage, a three-level neutral point clamped inverter is adopted. Thus, advantageous of the multilevel inverter topologies have been obtained with reduced number of switches. The proportional-resonant controller is designed to control the output voltage of the inverter to maintain a sinusoidal output voltage...
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