Search

In this paper, converter options for an automotive class permanent magnet synchronous generator (PMSG) are investigated. There are two options to rectify and regulate voltage from AC to DC. These are uncontrolled rectifier/dc-dc converter and controlled rectifier. Each converter topologies are explained and their comparison is performed. The comparison considers generator apparent power, efficiency, power flow ad cost. As far as converter effects on the generator apparent power rating and system efficiency are concerned, uncontrolled rectifier/dc-dc converter seems to be superior. On the other hand, controlled rectifier option has cost advantage over uncontrolled rectifier/dc-dc converter topology. A tradeoff exists between converter cost and PMSG utilization while making decision between two topologies. [ABSTRACT FROM PUBLISHER]

The motion control applications have become quite common in recent years. This makes the design and control of the motor very popular. Especially in high performance applications, permanent magnet synchronous motors, which are often called servo motor, are used nowadays. In this paper, the process of high performance motor driver design will be presented. These stages are; main power circuit, supply circuit, fault protection circuit, ADC (Anolog Digital Converter) signal conditioning circuit, CAN (Controller Area Network) communication circuit, Mosfet drive circuit and microcontroller. To make maximum use of real estate in the driver, components and PCB card placements are optimized. The driver is supplied by battery as DC source and its energy management is important as an enabler of longer battery life. A solution is presented for a reasonable battery energy management. Some thermal analysis and subsequent design procedure is given for power switch heat sink. Simulations are performed at both circuit and system levels before the experimental prototype have been built. Validation of the driver prototype has been performed with a PMSM motor and the results are quite promising before transition starts into the production stage. [ABSTRACT FROM PUBLISHER]

In today's world electrical machines become irreplaceable for human beings to continue daily routines. Due to the features such as high efficiency, high starting torque, and silent working, permanent magnet synchronous motors (PMSM) are becoming more common in many applications. One of these applications is gearless elevator system where PMSM seems to be the best candidate so far. In this paper, comparative design of PMSM for gearless elevator has been investigated. Maxwell 2D Finite element analysis software has been used in this study. With comparative design, the influence of pole count on the machine performance is studied. Also, material consumption, weight and costs of two machines have been compared. [ABSTRACT FROM PUBLISHER]