Abstract: The quasi-Z-source inverter (qZSI) with battery operation can balance the stochastic fluctuations of photovoltaic (PV) power injected to the grid/load. This work proposes a new topology of the energy-stored qZSI to overcome this disadvantage and delivers the continuous power to the grid/load. The operating characteristic of the proposed solution is analyzed in detail and compared to t...

The goal of this work is to reduce the DC-link capacitance of a two-stage single-phase inverter so much that the use of film capacitors becomes feasible in both, price and volume. Film capacitors instead of electrolytic capacitors could increase lifetime and reliability of the inverter, especially in high-temperature applications like module-integrated micro-inverters. For the capacitance reduc...

We develop higher-order nonlinear models of three-stage and five-stage ring oscillators based on a novel inverter model. The oscillation condition and oscillation frequency are derived and compared to classical linear model analysis. Two important special cases for five-stage ring oscillators are also studied. Numerical simulations are shown.

DOI: 10.5281/zenodo.59958 ABSTRACT In many DC-AC power conversions a voltage source inverter (VSI) along with an additional DC-DC boosting stage is required. To overcome this problem in VSI, a split source inverter is preferred. This paper presents a combination of boost stage and VSI stage as a single unit DC-AC power conversion named as split source inverter (SSI). The proposed topology requi...

Solar energy based micro-inverters are becoming more popular. Each solar panel in a system has its own low power inverter, its possibility to shading and PV cell malfunction is less. The micro-inverter is the integration of inverter and PV module in one electrical device. Micro-inverters convert the DC power from one PV module (solar panel) to the AC grid, and are designed for an output power i...

Multilevel converters offer high power capability, associated with lower output harmonics and lower commutation losses. Their main disadvantage is their complexity, requiring a great number of power devices and passive components, and a rather complex control circuitry. This paper proposes a single-phase sevenlevel inverter for grid connected PV systems, with a novel pulse widthmodulated (PWM) ...

The demand of efficient lighting is increasing day by day. The efficient lighting includes maximum efficacy of light as well as maximum utilization of energy by improving the power factor with less complexity. The discharge lamps with high frequency electronic ballasts are used for maximum efficient lighting. The power factor of the ballast which is used in fluorescent lamp circuit should be in...

This paper proposes a new topology namely Improved Current Fed Switched Inverter which is derived from the current fed switched inverter. The new topology improves the value of modulation index from its previous topology where the value of modulation index was restricted. The system is suitable for the renewable applications since it draws continuous input current. Single stage high boost inver...