This paper proposes a novel method based on pulse width modulation techniques toreduce and control the common-mode voltage in three-phase multilevel inverters. Besides controllingthe common-mode voltage, this method is capable of controlling capacitors voltages and load currentswith low switching losses and harmonic contents. In fact, due to the existence of different pulsepatterns and the poss...

In this study, a coordinated voltage control strategy based on model predictive (MPC) is proposed for offshore radial DC-connected wind farms. Two modes are designed in strategy. the economic operation mode, farm controller generates optimal active power references as well bus of medium-voltage collector turbine (DCWT) systems and high-voltage DC/DC converters, where goal to minimize losses ins...

DC microgrids have gained a lot of interest recently due to increasing dc loads such as electric vehicles and the penetration renewable energy sources (RESs). However, face challenges concerning bus voltage fluctuations, which severely impact system stability when subjected uncertainties load RESs. This paper focuses on maintaining DC-bus through control for islanded microgrid using concept cas...

This paper discusses the implementation of a fuzzy logic based coordinated voltage control for a distribution system connected with distributed generations (DGs). The connection of DGs has created a challenge for the distribution network operators to keep the voltage in the system within its acceptable limits. Intelligent centralized or coordinated voltage control schemes have proven to be more...

Voltage control is one of the imperative issues in the smart distribution control system. While traditional distribution network is equipped with communication and monitoring equipment, the online voltage control can be perfectly achieved. With using these smart grid technologies, the distribution voltage control schemes should carry out intelligently and cover the undesirable effect of high pe...

Although LCL filters are used widely in the grid connected inverters to reduce high-orderharmonics, such a system increases system order and therefore sustainable design of closed-loopcontroller system will be complicated. Recently, the single-loop control strategy has beensuggested for L or LC filter based grid-connected inverters. However, the use of single-loopcontrol directly in LCL filter-...

consideration of the current-voltage (i-v) characteristics variations of solar modules with temperature and irradiations variations is basic for maximum power point tracking (mppt). having a simple and accurate mathematical model for the optimize utilization of the solar modules is essential. in this paper, a novel modeling of photovoltaic systems with novel coefficients is proposed for mathema...