Electrical transmission or interconnection systems – Switching systems – Repetitive make and break
Patent
1977-06-07
1978-04-11
Schaefer, Robert K.
Electrical transmission or interconnection systems
Switching systems
Repetitive make and break
307132EA, 363124, H01H 4700
Patent
active
040841030
ABSTRACT:
This invention provides a method and apparatus for determining a precise switching sequence for the power switching elements of electric power delivery systems of the on-off switching type and which enables extremely fast transient response, precise regulation and highly stable operation. The control utilizes the values of the power delivery system power handling network components, a desired output characteristic, a system timing parameter, and the externally imposed operating conditions to determine where steady state operations should be in order to yield desired output characteristics for the given system specifications. The actual state of the power delivery system is continuously monitored and compared to a state-space boundary which is derived from the desired equilibrium condition, and from the information obtained from this comparison, the system is moved to the desired equilibrium condition in one cycle of switching control. Since the controller continuously monitors the power delivery system's externally imposed operating conditions, a change in the conditions is immediately sensed and a new equilibrium condition is determined and achieved, again in a single cycle of switching control.
REFERENCES:
patent: 3454834 (1969-07-01), Giannamore
patent: 3953783 (1976-04-01), Peters, Jr.
patent: 3953785 (1976-04-01), Bell, Jr.
Burns, III William Wesley
Wilson Thomas George
Helzer Charles W.
Indyk Eugene S.
Schaefer Robert K.
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