Optimal control of on-board and station flywheel storage for rail transit systems

Journal Article · Thu Nov 30 23:00:00 EST 1978 · J. Dyn. Syst., Meas., Control; (United States)

DOI:https://doi.org/10.1115/1.3426379· OSTI ID:6506955

Sweet, L M ^[1]; Keane, M J

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1. Princeton Univ., NJ

The energy efficiency of rail transit systems using regenerative braking is enhanced by flywheel storage elements used to store energy not accepted by the wayside power rail. In this paper three storage system control concepts are examined: armature and field control of on-board flywheels, and field control of a station-based storage device. The energy recovery efficiency and performance characteristics of each system are determined subject to optimal control laws derived to minimize energy loss. The resulting control systems are bilinear, due to the use of separately excited dc traction and flywheel motors as continuously variable transmissions. The three systems yield similar energy recovery efficiencies for deceleration, with the advantages of each for practical applications discussed.

• OSTI ID: 6506955
• Journal Information: J. Dyn. Syst., Meas., Control; (United States), Journal Name: J. Dyn. Syst., Meas., Control; (United States) Vol. 100; ISSN JDSMA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250500* -- Energy Storage-- Flywheels
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320200 -- Energy Conservation
Consumption
& Utilization-- Transportation
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
EFFICIENCY
ENERGY STORAGE
FLYWHEEL ENERGY STORAGE
FLYWHEELS
MECHANICAL ENERGY STORAGE EQUIPMENT
OPERATION
REGENERATIVE BRAKING
SIMULATION
STORAGE
TRAINS
VEHICLES