MAJIDREZA ARASTEH

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In this paper, DTC with multilevel inverters is presented. Due to simplicity of control and intrinsic short circuit protection, DTC is used to control high power pumps and fans. All of the required blocks including multilevel inverter, the 24-sector flux sector seeker and switching table are proposed. Balancing method for flying capacitor and a simple model(More)
Competition to acquire and maintain valuable customers is significantly increased among companies. Many studies have investigated the maintenance and growth of customers to improve the performance indicators such as retention rate, collection and organization of customers’ data, creating customers’ profiles and modeling the users. With the occurrence of(More)
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