Inertial energy storage for spacecraft

Technical Report · Sat Sep 01 04:00:00 EDT 1984

OSTI ID:6111642

Rodriguez, G E

The feasibility of inertial energy storage in a spacecraft power system is evaluated on the basis of a conceptual integrated design that encompasses a composite rotor, magnetic suspension and a permanent magnet (PM) motor/generator for a 3-kW orbital average payload at a bus distribution voltage of 250 volts dc. The conceptual design, is referred to as a Mechanical Capacitor. The baseline power system configuration selected is a series system employing peak-power-tracking for a Low Earth-Orbiting application. Power processing, required in the motor/generator, provides potential alternative that can only be achieved in systems with electrochemical energy storage by the addition of power processing components. One such alternative configuration provides for peak-power-tracking of the solar array and still maintains a regulated bus, without the expense of additional power processing components. Precise speed control of the two counterrotating wheels is required to reduce interaction with the attitude control system (ACS) or alternatively, used to perform attitude control functions.

• Research Organization: National Aeronautics and Space Administration, Greenbelt, MD (USA). Goddard Space Flight Center
• OSTI ID: 6111642
• Report Number(s): N-84-33669
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250000* -- Energy Storage
ATTITUDE CONTROL
CHEMISTRY
CONTROL
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRONIC EQUIPMENT
ENERGY STORAGE
EQUIPMENT
FLYWHEELS
MECHANICAL ENERGY STORAGE EQUIPMENT
METAL-GAS BATTERIES
METAL-METAL OXIDE BATTERIES
NICKEL-CADMIUM BATTERIES
NICKEL-HYDROGEN BATTERIES
POWER SUPPLIES
RABBIT TUBES
REACTION PRODUCT TRANSPORT SYSTEMS
REACTOR COMPONENTS
REACTOR EXPERIMENTAL FACILITIES
SOLAR CELL ARRAYS
SOLAR EQUIPMENT
SPACECRAFT POWER SUPPLIES
STORAGE