Title :
1MWh-battery for the Berlin subway system
Author :
Voigt, B. ; Mierke, T. ; Lorenz, U. ; Krämer, K.
Author_Institution :
EAB Energie-Anlagen Berlin GmbH, Germany
Abstract :
The subway system of West Berlin´s public transport company BVG will be equipped with a battery of about 1 MWh. The system layout was supported by comprehensive measurements and computer simulations. The battery will be connected to the DC power network by a resistor with two antiparallel valves. This configuration should enable optimal energy management between the battery and the DC network. The purpose of the battery is to equalize the load curve, store the recovered brake energy, and provide a short-time emergency power supply. The equalization of the load curve results in reductions of power charges and of rectifier size. Additionally, up to 35% of the acceleration energy can be recuperated. The system description and design are given
Keywords :
emergency power supply; energy storage; load management; power supplies to apparatus; power systems; railways; rectifiers; regenerative braking; secondary cells; 1 MWh; DC power network; Germany; acceleration; antiparallel valves; emergency power supply; energy management; equalization; load curve; optimisation; power supplies to apparatus; public transport; recovered brake energy; rectifier; resistor; secondary cells; subway system; Acceleration; Battery charge measurement; Computer simulation; Educational Activities Board; Inverters; Power system harmonics; Rectifiers; Resistors; Substations; Voltage;
Conference_Titel :
Power Sources Symposium, 1990., Proceedings of the 34th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-87942-604-7
DOI :
10.1109/IPSS.1990.145793
