The paper describes a study and an experimental verification of remedial strategies against failures occurring in the inverter power devices of a permanent-magnet synchronous motor drive. The basic idea of this design consists in incorporating a fourth inverter pole, with the same topology and capabilities of the other conventional three poles. This minimal redundant hardware, appropriately con...

This paper presents the design of controller based on proportional resonant strategy for single-phase grid connected inverter. The control design is carried out using Sisotool, which is provided in Matlab. By using this tool, users can examine the effects of changing the gain control values to system's transient response and stability, simultaneously. Hence, simplify and speed up the control de...

Abstract: Hybrid Hbridge inverter. The proposed novel cascaded Hybrid H-bridge produces higher voltage levels with less number this paper presents a single-phase multistring Multi-level photovoltaic (PV) inverter topology for Micro gridconnected PV systems with a novel of devices. This will reduce the number of gate drives and protection circuits requirement, this inurn reduces the cost increas...

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 width-modulated (PWM)...

This paper presents a new cascaded multilevel inverter topology in asymmetric configuration. Initially general topology is presented and then extended for higher number of stages. In this paper a new cascade diagonal dc source multilevel inverter topology is proposed, which included the increased number of output voltage levels with minimum number of switches as well as with minimum dc voltage ...

Abstract: This paper develops a novel framework for power system stability analysis, that allows for the decentralised design of inverter based controllers. The method requires that each individual inverter satisfies a standard H1 design requirement. Critically each requirement depends only on the dynamics of the components and inverters at each individual bus, and the aggregate susceptance of ...

In recent years, energy production by renewable sources is becoming very important, and photovoltaic (PV) energy has became one of the main renewable sources that is widely available and easily exploitable. In this context, it is necessary to find correct tools to optimize the energy production by PV plants. In this paper, by analyzing available solar irradiance data, an analytical expression f...

This paper presents simplified predictive current controller for 3-ph PWM voltage source inverter connected to the utility grid via filter inductance. By controlling inductance voltage drop, the inverter voltage and hence the injected current can be controlled. The proposed predictive control technique operates with constant switching frequency using space-vector modulation (SVM). In each switc...

This paper presents a multi-input single-phase grid-connected inverter for a hybrid photovoltaic (PV)/wind power system, integrated with basic and advanced functions developed by the authors. To achieve high quality current and fast dynamic response to inherent variations of hybrid renewable energy sources, an improved space vector pulse-width-modulation (PWM) based predictive current control a...

connected PV inverters available on the European market and to outline future trends in this rapidly developing technology. The paper is organized as follows. Section I1 describes PV system designs and discusses safety aspects concerning transformerless topologies. Then some commercially available inverter topologies are presented and discussed and an overview on market shares, price and effici...