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Bidirectional control system for energy flow in solar powered flywheel
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1987 |
| Description | An energy storage system for a spacecraft is provided which employs a solar powered flywheel arrangement including a motor/generator which, in different operating modes, drives the flywheel and is driven thereby. A control circuit, including a threshold comparator, senses the output of a solar energy converter, and when a threshold voltage is exceeded thereby indicating the availability of solar power for the spacecraft loads, activates a speed control loop including the motor/generator so as to accelerate the flywheel to a constant speed and thereby store mechanical energy, while also supplying energy from the solar converter to the loads. Under circumstances where solar energy is not available and thus the threshold voltage is not exceeded, the control circuit deactivates the speed control loop and activates a voltage control loop that provides for operation of the motor as a generator so that mechanical energy from the flywheel is converted into electrical energy for supply to the spacecraft loads. |
| File Size | 643591 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870011977 |
| Archival Resource Key | ark:/13960/t1qg3m05d |
| Language | English |
| Publisher Date | 1987-03-10 |
| Access Restriction | Open |
| Subject Keyword | Energy Production And Conversion Electronic Control Direct Power Generators Control Solar Energy Conversion Comparators Spacecraft Power Supplies Threshold Voltage Flywheels Electric Energy Storage Comparator Circuits Energy Conversion Efficiency Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
