QUASI-LOAD FOLLOWING (Q-LF) HIGH EFFICIENCY FAULT TOLERANT HYBRID ELECTRIC POWER SYSTEM CONTROL METHOD

An electric propulsion power system a power plant providing power to a bus, a load drawing power from the bus, a battery providing power to and drawing power from the bus. The power system also includes a control system for controlling the amount of power that the power plant provides to the bus, th...

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Bibliographische Detailangaben
Hauptverfasser:	Knowles, Jeffrey A, Harris, Christopher A
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	An electric propulsion power system a power plant providing power to a bus, a load drawing power from the bus, a battery providing power to and drawing power from the bus. The power system also includes a control system for controlling the amount of power that the power plant provides to the bus, the amount of power that the battery provides to and draws from the bus in response to the load drawing power from the bus over time. The control system calculates a moving time-average current value over a predetermined time window using the instantaneous current measurements, determines a delta current value as the difference between a current charge/discharge limit of the battery and the moving time-average current value and determines if additional power from the power plant to the bus will be provided and a rate of current in the discharge mode or the charge mode.