Monitoring and controlling the status of frequency-managed electric devices from frequency history
AssigneeBattelle Memorial Institute
InventorDonald J. Hammerstrom
Life of this patent
Estimating the term…
Abstract
Apparatus comprise control circuitry configured to control a line frequency of a microgrid by directing a first set of one or more electrical devices coupled to the microgrid to produce a change in the line frequency through a change in operation of the first set, such that a second set of one or more electrical devices coupled to the microgrid adjusts operation in response to a detected line frequency changeably produced by the first set. Related methods and additional apparatus and methods are disclosed. Apparatus and methods are disclosed that use line frequency and/or line voltage. Apparatus and methods are also disclosed that use control history.
Claims39
An apparatus, comprising:
- control circuitry configured to control a line frequency of a microgrid by directing a first set of one or more electrical devices coupled to the microgrid to produce a change in the line frequency through a change in operation of the first set, such that a second set of one or more electrical devices coupled to the microgrid adjusts operation in response to a detected line frequency changeably produced by the first set.
A method, comprising:
- selecting a line frequency of a microgrid that is within a predetermined range associated with control of one or more electrical devices coupled to the microgrid;
- and
- adjusting the line frequency to the selected line frequency so that the one or more electrical devices change operation in response to detecting the adjusted line frequency.
An apparatus, comprising:
- a detector configured to detect a line frequency of a microgrid, wherein the detected line frequency corresponds to a control command for one or more electrical devices coupled to the microgrid, wherein the line frequency is independently controlled to vary within a range of microgrid line frequencies to produce the control command;
- and
- control circuitry configured to control the one or more electrical devices based on the detected line frequency corresponding to the control command.
A method, comprising:
- detecting a line frequency of a microgrid, wherein the detected line frequency corresponds to a control command for one or more electrical devices coupled to the microgrid, wherein the line frequency is independently controlled to vary within a range of microgrid line frequencies to produce the control command;
- and
- controlling the one or more electrical devices based on the detected line frequency.
An apparatus, comprising:
- control circuitry configured to control a line voltage of a microgrid by directing a first set of one or more electrical devices coupled to the microgrid to produce a change in the line voltage through a change in operation of the first set, such that a second set of one or more electrical devices coupled to the microgrid adjusts operation in response to a detected line voltage changeably produced by the first set.
Dependencies are inferred from the claim text.