The increasing development of the use of new energies has led to the widespread use of power electronics, so that electronic power converters play an important role in extracting power from renewable sources. Power electronics can convert raw energy produced from new energy into the desired power with controlled current, voltage and frequency to be used in the power grid. Restructuring of power systems has led to an increasing number of scattered products in these systems. Distributed generation units, depending on the specifications, operating conditions and installation location, can be the source of positive effects such as improving the reliability of distribution networks. In this paper, the effect of distributed generation on reliability in wind systems is modeled. With the presence of DG, the distances of power infrastructure equipment are reduced, and as a result, system losses are reduced and ultimately network safety is improved. Proper design of these systems from the point of view of proper selection of active and inactive elements and proper design of ventilation system will have a direct impact on the reliability of these systems. It is also important to study the methods that do not lose the total output power of the converter after an error occurs in electronic converters. Manuscript profile

With the increasing expansion of electronic power converters in industrial applications, converter reliability.Power electronics have become very important. Electronic converters as intermediaries in systems Power generation from PV and Wind is also important in electrical drives and the aerospace industry. This article introduces comprehensive methods for assessing reliability. Methods reviewed Used for power extraction systems from WECS wind energy based on PMSG permanent magnet generator Placed. In these systems, it is usually a diode rectifier with a step-up converter and inverter on the side The network is exploited. The task of the inverter on the network side is to stabilize the DC link voltage and adjust the reactive power. The amplifier converter is also responsible for regulating the output voltage of the rectifier in order to obtain maximum power. in this Thesis uses both ordinary incremental inverter and interleave increment inverter and the capability Reliability is analyzed. Manuscript profile

Connecting distributed generation units with their proper placement in the network will have various effects such as increasing network reliability, reducing losses, improving voltage profiles, reducing transmission and energy distribution costs, and improving power quality parameters, including voltage imbalances. Since voltage imbalance is one of the common problems of distribution networks, this paper deals with the optimal placement of these resources in the unbalanced distribution system at different and asymmetric loads in the structure of distribution lines. Reducing the voltage imbalance coefficient, in order to increase the quality of power delivered to customers, has been one of the goals of optimal placement of distributed products in this study. Due to the need to carry out load distribution studies in unbalanced distribution systems, this study was performed using CYME-Dist software and the optimization process, by establishing a relationship between the software and MATLAB software. By introducing the multi-objective function to locate the distributed generation sources, in order to minimize the unbalanced voltage coefficient and real power losses, improve the voltage profile and increase the economic gain, the concepts of multi-objective optimization (Parato) have been used. Furthermore, the NSGA-II algorithm has investigated the placement of scattered products in the IEEE standard 13-bus network, at three different load levels. What can be deduced from the results is that by properly placing the distributed generation sources in the unbalanced distribution system, the amount of losses and voltage imbalances can be reduced. Also shown in a placement it has been shown that placing distributed generation resources in the right place will bring significant benefits to its consumers. Manuscript profile

A fuzzy inference system is a mapping of input-to-output space implemented using membership functions and fuzzy rules. Intelligent, control and decision making is one of the most important fuzzy inference algorithms. Mamdani and Sugno fuzzy inference algorithms are examined and their advantages and disadvantages are stated. Manuscript profile