Trane International Inc.

James Kenneth McKeever

Udhaya Kumar Dayalan

Ronnie R Moffitt

Thomas Christopher Basterash

Aaron E Opatz

John Arthur Murphy

Brian A Kirkman

Eugene R Shedivy

A method is provided for controlling electrical load on a power grid from a load facility using demand response. The method includes accessing memory storing computer-readable program code for decision analysis of a specified time interval for a demand-response (DR) event. The method also includes executing the computer-readable program code, via a processor, to cause an apparatus to at least make a decision to participate in or opt out of the DR event. This includes the apparatus receiving values of variables that describe occupancy and usage of the load facility for one or more time intervals. The apparatus applies the values to an algorithm that maps the variables to a decision to participate in or opt out of the DR event for the specified time interval. And the apparatus automatically notifies an operator responsible for the DR event of the decision at least when the decision is to opt out.

Controlling the electrical load of a load facility using demand response

A method and apparatus for controlling a load facility in response to a demand event. The method includes defining a plurality of resources of the load facility based on user input, establishing a response strategy for the demand event, and organizing the resources into the response strategy that specifies the resources and times during the demand event at which the resources are called to execute the one or more measures to reduce power consumption of one or more of the electrical devices, different ones of the resources called at different times during the demand event, and at least one of the resources called to execute the one or more measures, and further including executing the response strategy to reduce demand on the power grid from the load facility during the demand event.

Control of a load facility in response to a demand event

The present disclosure provides a method and apparatus for maintaining computer software of a supervisory control unit (SCU) of an industrial control system (ICS) configured to control equipment of a facility. The method includes capturing status information for the SCU and equipment that indicates at least performance of the SCU and the equipment, and connectivity of the SCU with the equipment. The method includes patching the computer software automatically to update, change, fix, or improve the computer software. The method includes capturing corresponding status information for the SCU and equipment and performing an audit of the ICS after the patch in which the status information and the corresponding status information are compared to identify any deviations in the performance or the connectivity of the equipment resulting from the patch. The method includes generating an audit report of the ICS that indicates any of the deviations that satisfy a reporting threshold.

Method and apparatus for maintaining software of a control unit for an industrial control system

A method of controlling a discharge air reset in an heating, ventilation, air conditioning, and refrigeration (HVACR system includes determining, by a controller, a space temperature in a conditioned space, a setpoint temperature of the conditioned space, and an operating mode of a variable-air-volume (VAV) box for the conditioned space. The controller determines whether the operating mode of the VAV box matches an operating mode of an HVACR unit. A deviation from the setpoint temperature of the conditioned space for the VAV box for the conditioned is calculated in response to determining the VAV box is in a same mode as the HVACR unit. An average deviation from the setpoint temperature of the conditioned space is calculated. A discharge air setpoint temperature is determined based on the average deviation from the setpoint temperature of the conditioned space. The controller sets the discharge air setpoint temperature of the HVACR unit using the determined discharge air setpoint temperature.

Discharge air reset for a constant volume air changeover bypass

A method of controlling a discharge air reset in an heating, ventilation, air conditioning, and refrigeration (HVACR system includes determining, by a controller, a space temperature in a conditioned space, a setpoint temperature of the conditioned space, and an operating mode of a variable-air-volume (VAV) box for the conditioned space. The controller determines whether the operating mode of the VAV box matches an operating mode of an HVACR unit. A deviation from the setpoint temperature of the conditioned space for the VAV box for the conditioned is calculated in response to determining the VAV box is in a same mode as the HVACR unit. A statistical deviation from the setpoint temperature of the conditioned space is calculated. A discharge air setpoint temperature is determined based on the statistical deviation from the setpoint temperature of the conditioned space. The controller sets the discharge air setpoint temperature of the HVACR unit using the determined discharge air setpoint temperature.

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Blaine, MN, United States of America

James Kenneth McKeever