This paper includes modeling and simulation of 180 MW units of pumped storage power plant with Variable speed machines. In this method, voltage source inverters are used instead of traditional cyclo-converters. This paper aims to control the voltage source inverters and maintain DC voltage at a constant value. AC/ DC/ AC converter is used in system configuration structure in order to control an...

Development and utilization of wind energy has become an important part of world sustainable energy development strategy. A control method realizing maximum power point tracking of wind turbine through adjusting the load characteristics was proposed in this article. The power management system based on DC/DC convertors was designed. The maximum power point tracker (MPPT) extracts maximum power ...

The trend in next-generation switched-mode power supplies will lead to modular, scalable solutions which can deliver power efficiently over a wide range of operation. Multiple parallel power stages, often called “phases”, are necessary to meet these requirements. This paper details a new approach to introduce more control features like phase-alignment, current sharing and phase shedding, which ...

unlike traditional power grids, smart grids have the advantage of bidirectional power flow and having distributed generations. distributed generation systems are usually supplied by renewable sources which can cause unpredicted voltage fluctuations as a result of being intermittent. while traditional compensating devices deal with the problem of voltage fluctuation and reduced power quality wit...

This paper presents a distance protection test procedure by applying the Real-Time Digital Simulator (RTDS) of a power system. RTDS is a tool to design, develop, and test power-system protection. The RTDS enables real-time computation of electromagnetic phenomena with a calculation time step of even 50μs. The hardware allows the import and export of many signals from the simulator to an ext...

A hybrid renewable energy system is described which consists of twelve photovoltaic (PV) panels and a wind generator and can supply continuous electric power of 1.5 kW. An Energy Management System (EMS) was developed for this purpose in order to maximize the electric power produced using a maximum power point tracking (MPPT) method and consists of Buck-type DC/DC converters controlled by a micr...

Among all the renewable resources, wind and solar are the most popular resources due to its ease of availability and its ease conversion into electricity. Each renewable resource uses DC/DC boost converter separately with MPPT control to generate power. To increase the efficiency of photovoltaic (PV) system and wind energy system, the maximum power point tracking (MPPT) technology is employed. ...

In this paper, the solar panel using fuzzy controlled maximum power point tracking is analysed for a brushless DC motor (BLDC). The BLDC is powered by the solar panel through an integrated inverter circuit to produce an AC signal. The solar panel power obtained is tracked by an artificial intelligent technique using fuzzy logic controller to extract the maximum power from the panel. The maximum...

In this paper, a new structure for buck-boost Z-source converter based on Z-H topology is proposed. The proposed converter consists of two LC networks similar to the conventional Z-source and Z-H converters. One of the characteristics of the proposed structure is that, without any changing in its’ power circuit, it can be used in different conversions such as dc/dc, dc/ac and ac/ac. This unique...

this paper presents a novel control approach used in shunt active power filter based on variable structure control combined with random pwm technique (rvsc) that provides robust, fast, and more favorable performance for active power filter. this control strategy is compared with two other strategies to show the effectiveness of the introduced methods; pulse width modulated proportional-integral...