This paper presented a new topology of three-level single phase transformerless photovoltaic inverter (TPVI). It consisted of three main circuits; they were a pulse driver circuit, a full bridge inverter circuit and a power factor correction (PFC) circuit that had functions as production of pulse waves, to develop alternating current (AC) waveform and to stabilize voltage of photovoltaic (PV) a...

The operation of the photovoltaic (PV) system under partial shading conditions (PSC) is complicated since output characteristic PV profoundly affected by heterogeneous irradiance PSC. This paper proposes a dynamic reconfiguration framework to tackle PSC in array. Continuous array cloud-induced considered developing an emulator moving cloud. In addition, Particle Swarm Optimization and Rao algor...

In this paper, an improved maximum power point (MPP) tracking (MPPT) with better performance based on voltage-oriented control (VOC) is proposed to solve a fastchanging irradiation problem. In VOC, a cascaded control structure with an outer dc link voltage control loop and an inner current control loop is used. The currents are controlled in a synchronous orthogonal d, q frame using a decoupled...

It is now well established that vortex dynamics in samples with a spatially asymmetric pinning potential can lead to rectifying vortex ‘diode’ behaviour. Spatial asymmetry is not a fundamental requirement for the control of vortex motion, however, and we demonstrate that vortex ‘lensing’ is possible in highly anisotropic layered superconductors simply under the action of non time-reversible tra...

Electronic control of microwave antennas and circuits is usually based on the use of reverse biased semiconductor junctions. Optical control of such circuits has been by directly illuminating the active (depletion) regions of the semiconductor junctions. In this paper we report indirect optical control of microwave antennas and circuits using a photovoltaic array that generates a light dependen...

A power conversion interface for a small-capacity photovoltaic generation system (PPGS) is proposed in this paper. The composed of DC–DC converter (DDC), battery pack and buck–boost inverter (BBI). integrated to the store or release energy smoothing fluctuation PPGS. only activated when large change occurs array (PV array). DC power, no matter whether from PV pack, needs be converted into AC by...

Solar photovoltaic (PV) systems are susceptible to power loss caused by environmental factors such as partial shading and temperature changes. To address this issue, PV modules connected in array configurations. However, these configurations can lead mismatch losses between the rows, which reduce output. While there many solutions mitigate losses, performance of each solution vary depending on ...