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 EPE 1997 – 63: Dialogue Session DS5b-4: TRACTION - OTHERS 
 You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1997 - Conference > EPE 1997 – 63: Dialogue Session DS5b-4: TRACTION - OTHERS 
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   APPLICATION OF A HIGH-POWER IGBT-CONVERTER 2.2MVA/690V FOR A KNEADER-DRIVE 
 By R. Jakob; H. Jebenstreit 
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Abstract: A high power IGBT-inverter is presented. At industrial voltages of 690V the new drive system allows an economic speed control with all advantages of IGBT-technology in a power range, which was dominated in the past by medium voltage drive systems.A special WINDOWS-software makes it possible to control and observe several drives very comfortable.

 
   ROBUST AND RELIABLE MEDIUM VOLTAGE PWM INVERTER WITH MOTOR FRIENDLY OUTPUT 
 By M. K. Buschmann; J. K. Steinke 
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Abstract: PWM voltage source inverters are today the dominating inverter type for low voltage drives. This paper describes how to utilize the know-how from low voltage drives also for medium voltage applications and how to realize an inverter with an output voltage which allows to connect standard industrial motors without derating.

 
   ELECTRIC SHIP PROPULSION: A REVIEW OF POSSIBLE CONFIGURATIONS BASED ON LARGE ELECTRICAL MACHINES AND HIGH POWER STATIC CONVERTERS 
 By M. Fracchia; M. Marchesoni; L. Pierrat 
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Abstract: This paper analyses from different points of view the electrical drives for ship propulsion systems. In fact there are many possibilities to accomplish electric propulsion. However the most modem and correspondingly latest installations are based on fixed generator speed and motor speed control. Marine applications are mainly based on AC electrical drives equipped with power electronic systems (current source inverters or cycloconverters or voltage source inverters). It is a common assumption for naval engineers that if electrical propulsion is feasible for a ship, it is feasible whatever drive concept is selected. But at the same time several configurations are proposed whose aims are to comply the following main design criteria: torque and speed performances; redundancy; investment cost; available space and shape (weight/length) of the propulsion motor room. This paper will perform a comparative analysis of the basic, redundant innovative configurations in terms of the above defined items and the impact of electric power supply and noise-vibrations. The requirements and the guidelines for the power converters design will be also outlined.