Werner Teich

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Werner Teich (born December 16, 1932 in East Prussia; † December 26, 2010 Mannheim ) was a German senior engineer at the BBC in Mannheim. Under his leadership, a team of engineers developed three-phase AC technology using static converters for locomotives. Today they are state of the art in electrically powered rail vehicles - from trams to diesel-electric locomotives to electric locomotives - and are the basis for ICE power cars.

Act

Teich studied electrical engineering at the Mannheim Engineering School, today's Mannheim University of Applied Sciences , and joined Brown, Boveri & Cie. (BBC) in Mannheim-Käfertal, where he worked his way up to senior engineer. In this role and as head of department, he and his team developed three-phase drives for locomotives in the 1970s . This work was not an official research project of the group, but ran more or less on the side - supported and protected against criticism from the group management by the then Mannheim site manager Eric Kocher.

Up to now, the traction motors of electric locomotives and railcars could only be driven with single-phase alternating current from the overhead line or direct current from the side busbar . The tractive force and speed were controlled by the voltage supplied to the traction motors, which was varied, for example, with single-phase alternating current via a step transformer . This technology with single-phase series motors made it necessary to build separate locomotives for heavy freight trains or fast passenger trains. The much more suitable asynchronous motors were not widely used, for example in the northern Italian railway network with three-phase current .

The universal locomotive was born

It is thanks to Teich and his team that they have developed electronic converters that first convert the alternating current of the contact wire in the locomotive into direct current and then form this into a three-phase alternating voltage of variable frequency - and that with the enormous currents that electric Locomotives are common. The variable frequency is necessary because the speed of asynchronous motors is controlled by the frequency. Locomotives equipped with asynchronous motors are so versatile that they are considered universal locomotives: The same technology pulls heavy freight trains as well as fast ICEs or high-speed suburban trains.

The developments at BBC Mannheim, after they turned out to be successful and have now also been recognized by the corporate management in Baden / Switzerland, resulted in the DE2500 diesel-electric test locomotive . Three machines were financed and built by BBC and extensively tested as the 202 series by the Deutsche Bundesbahn. The first locomotive built in series based on this technology was the DB class 120 . The three-phase current generation by converters , which was tested on these test vehicles, represented a milestone in the development of electric locomotives and is now standard in all modern diesel-electric and electrically powered rail vehicles. Based on the technology of the 120 series, the first ICE power cars were developed in the mid-1980s .

Waiver of patents

Since Brown, Boveri & Cie Mannheim could not afford the development costs from the DE2500 prototype to the first BR120 series locomotive on their own, the company took state financial support. In return, it had to forego patents, so that today all manufacturers of locomotives and trams are allowed to use three-phase current technology.

For his invention, Teich received numerous honors and awards, such as B. the Elmer A. Sperry Award , which Teich received together with his engineering colleagues Jörg Brenneisen, Ehrhard Futterlieb, Joachim Körber, Edmund Müller, G. Reiner Nill, Manfred Schulz and Herbert Stemmler.

Awards

Incomplete list

Publications (selection)

  • BBC Three-Phase Power Transmission for Locomotives , Railway Technical Review (RTR), Vol. 17, 1975, p. 44
  • Locomotives with three-phase drive technology for IVA '79 - examples of a broad field of application , published in Elektro Bahnen 6/79, pp. 151–158
  • Versatile electrical equipment in diesel-hydraulic rail vehicles , Mannheim, published by Brown, Boveri & Cie., 1962
  • The electric locomotives 1063 of the Austrian Federal Railways: three-phase drive technology for 162/3 and 50 Hz feed , Eisenbahntechnische Rundschau ETR, 33 (1984) 5, pp. 451-456
  • New impulses for three-phase drive technology , Eisenbahntechnische Rundschau ETR, 23 (1974) 1–2, pp. 45–51
  • Two-frequency locomotives E 1200 with BBC - three-phase drive technology, Eisenbahntechnische Rundschau ETR, 27 (1978) 4, pp. 185–192
  • BBC three-phase drive technology for rail vehicles , Mannheim. published by Brown, Boveri & Cie., 1986
  • Works by Werner Teich at worldcat.org. worldcat.org, accessed January 13, 2016 .

literature

  • Karl Gerhard Baur: The 120 series. Volume 1 - Development and prototypes . Eisenbahn-Kurier Verlag, Freiburg 2014, ISBN 978-3-8446-6015-9 .
  • Karl Gerhard Baur: The history of three-phase locomotives . Eisenbahn-Kurier Verlag, Freiburg 2005, ISBN 3-88255-146-1 .
  • Pia Dahlem, Bernhard Pfendtner: 101 Years of Fascination Rail Transport / Special edition for the 101st anniversary of Bombardier Mannheim . Dapamedien Verlag, Penzberg 2010.

Individual evidence

  1. ↑ Electric Railways , via Google Books
  2. ^ Obituary in the Eisenbahn-Kurier from 3/2011
  3. ↑ 101 years of fascination with rail transport / special edition for the 101st anniversary of Bombardier Mannheim , p. 21f
  4. ↑ BT FOCUS, Bombardier-Werkszeitschrift, 2/15 of December 2015, page 9, obituary for Eric Kocher
  5. ↑ 101 years of fascination with rail transport / special edition for the 101st anniversary of Bombardier Mannheim , p. 23f
  6. ^ List of the winners of the Beuth Medal of Honor
  7. ↑ Information from the Federal President's Office
  8. ↑ Elektro Bahnen 6/79, p. 151
personal data
SURNAME Pond, Werner
BRIEF DESCRIPTION German inventor of three-phase AC technology for locomotives
DATE OF BIRTH December 16, 1932
PLACE OF BIRTH East Prussia
DATE OF DEATH December 26, 2010
Place of death Mannheim