Abstract: A permanent magnet machine includes a machine housing having an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The permanent magnet machine also includes a stator disposed within the machine housing, the stator having a stator core having an exterior surface extending between a first face and a second face along the central longitudinal axis, wherein the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface. The discontinuous region is at least partially defined by at least one of a first perturbation and a second perturbation that is circumferentially spaced apart from the first perturbation.

Abstract: A permanent magnet machine includes a machine housing and a stator disposed within the machine housing. The machine housing has an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The stator has a stator core having an exterior surface and an interior surface, each extending between a first face and a second face along the central longitudinal axis. The stator core defines a plurality of openings that extend from the first face towards the second face.

Abstract: A permanent magnet machine includes a machine housing having an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The permanent magnet machine also includes a stator disposed within the machine housing, the stator having a stator core having an exterior surface extending between a first face and a second face along the central longitudinal axis, wherein the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface. The discontinuous region is at least partially defined by at least one of a first perturbation and a second perturbation that is circumferentially spaced apart from the first perturbation.

Abstract: A permanent magnet machine includes a machine housing and a stator. The machine housing has an inner surface. The stator is disposed within the machine housing. The stator has a stator core having an exterior surface. At least one of the inner surface and the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface.

Abstract: A system and method are described for self-diagnosing heating, ventilation and air conditioning (HVAC) systems. The system and method correlate an HVAC control mode of a particular HVAC unit with an energy usage for the particular HVAC unit in order to match normal patterns in energy usage with the HVAC control mode. This correlation allows the system and method to identify potential problems with the particular HVAC unit based on deviations from normal patterns.

Abstract: A system for controlling an HVAC system and for monitoring energy usage at a premises is described. The system includes an energy meter at a electrical distribution panel, where the energy meter connected to one or more current transformers monitoring the current in one or more input lines and load lines and collecting current information for each of the monitored lines. The energy meter is further including a wireless radio to transmit the current information. An intelligent thermostat is operable to control the HVAC system at the premises according to environmental data sensed by the intelligent thermostat, and to receive the current information from the energy meter and to transmit the current information to a remote server for processing. A remote server is operable to process the current information from the energy meter by applying a scaling factor to the current information to determine energy usage. The remote server can also group the energy usage information according the load types being monitored.

Abstract: A system and method are described for self-diagnosing heating, ventilation and air conditioning (HVAC) systems. The system and method correlate an HVAC control mode of a particular HVAC unit with an energy usage for the particular HVAC unit in order to match normal patterns in energy usage with the HVAC control mode. This correlation allows the system and method to identify potential problems with the particular HVAC unit based on deviations from normal patterns.

Abstract: A system for controlling an HVAC system and for monitoring energy usage at a premises is described. The system includes an energy meter at a electrical distribution panel, where the energy meter connected to one or more current transformers monitoring the current in one or more input lines and load lines and collecting current information for each of the monitored lines. The energy meter is further including a wireless radio to transmit the current information. An intelligent thermostat is operable to control the HVAC system at the premises according to environmental data sensed by the intelligent thermostat, and to receive the current information from the energy meter and to transmit the current information to a remote server for processing. A remote server is operable to process the current information from the energy meter by applying a scaling factor to the current information to determine energy usage.

Abstract: A permanent magnet machine includes a machine housing and a stator disposed within the machine housing. The machine housing has an inner surface that extends between a first housing end and a second housing end along a central longitudinal axis. The stator has a stator core having an exterior surface and an interior surface, each extending between a first face and a second face along the central longitudinal axis. The stator core defines a plurality of openings that extend from the first face towards the second face.

Abstract: A permanent magnet machine includes a machine housing and a stator. The machine housing has an inner surface. The stator is disposed within the machine housing. The stator has a stator core having an exterior surface. At least one of the inner surface and the exterior surface defines a discontinuous region that is arranged to minimize points of contact between the inner surface and the exterior surface.

Abstract: Embodiments provide an integrated motor-compressor assembly including a rotating impeller to compress a fluid passing therethrough, and diffuser vanes radially spaced from the impeller, each of the diffuser vanes including a stator winding therearound, the stator windings being supplied with current to generate sufficient magnetic flux for rotating the impeller. Embodiments provide an integrated motor-compressor assembly including a volute casing housing a rotating impeller to compress a fluid passing therethrough, a stator fixedly positioned in the volute casing proximate to the impeller, the stator including stator poles axially spaced from the impeller, each of the stator poles including a stator winding, the stator windings being supplied with current to generate sufficient axial magnetic flux for rotating the impeller.

Abstract: A system and method for reducing the data transmitted from an energy management system is described. The system and method include a critical event evaluator receiving data from a plurality of data sources, where the critical event evaluator monitors the data for critical events requiring immediate transmission to a monitoring center. A schedule comb and a delta comb receive the data from the plurality of data sources, the schedule comb operable to reduce the data according to data schedule rules stored in a data definition database and the delta comb reduce the data by eliminating data values that have not changed since a previous transmission. The schedule comb and delta comb produce a reduced data set. A queue stores the reduced data set, which is transmitted when the queue reaches a trigger size or a critical event is found.

Abstract: A power supply system to be operatively connected to a grid, a load, and at least one auxiliary power node. The power supply system comprising at least one power control system comprising a device controller, a power integration system operatively connected to the at least one auxiliary power node, a power management board, and a user interface device operatively connected to the device controller. The device controller is configured to run software that displays a user interface on the user interface device that allows entry of configuration data associated with at least one of the grid, the load, and the at least one auxiliary power node and access to status data associated with at least one of the grid, the load, and the at least on auxiliary power node. The device controller controls operation of the power integration system and power management board using the configuration data.

Abstract: A networking thermostat is described that includes a main processor and a communications processor. The main processor includes a network manager function, a master messaging function and a slave messaging function while the communications processor includes a wireless radio enabling the thermostat to communicate with other networking thermostats. The networking thermostat is able to operate in a master mode or a slave mode, where the master mode allows the networking thermostat to act as a main gateway between other networking thermostats and a remote server. When in the master mode the networking thermostat can default to a slave if communication with the remote server is lost, thereby allowing one of the other networking thermostats to become a master.

Abstract: A system and method for reducing the data transmitted from an energy management system is described. The system and method include a critical event evaluator receiving data from a plurality of data sources, where the critical event evaluator monitors the data for critical events requiring immediate transmission to a monitoring center. A schedule comb and a delta comb receive the data from the plurality of data sources, the schedule comb operable to reduce the data according to data schedule rules stored in a data definition database and the delta comb reduce the data by eliminating data values that have not changed since a previous transmission. The schedule comb and delta comb produce a reduced data set. A queue stores the reduced data set, which is transmitted when the queue reaches a trigger size or a critical event is found.

Abstract: A networking thermostat is described that includes a main processor and a communications processor. The main processor includes a network manager function, a master messaging function and a slave messaging function while the communications processor includes a wireless radio enabling the thermostat to communicate with other networking thermostats. The networking thermostat is able to operate in a master mode or a slave mode, where the master mode allows the networking thermostat to act as a main gateway between other networking thermostats and a remote server. When in the master mode the networking thermostat can default to a slave if communication with the remote server is lost, thereby allowing one of the other networking thermostats to become a master.

Abstract: A system and method for reducing the data transmitted from an energy management system is described. The system and method include a critical event evaluator receiving data from a plurality of data sources, where the critical event evaluator monitors the data for critical events requiring immediate transmission to a monitoring center. A schedule comb and a delta comb receive the data from the plurality of data sources, the schedule comb operable to reduce the data according to data schedule rules stored in a data definition database and the delta comb reduce the data by eliminating data values that have not changed since a previous transmission. The schedule comb and delta comb produce a reduced data set. A queue stores the reduced data set, which is transmitted when the queue reaches a trigger size or a critical event is found.

Abstract: Embodiments provide an integrated motor-compressor assembly including a rotating impeller to compress a fluid passing therethrough, and diffuser vanes radially spaced from the impeller, each of the diffuser vanes including a stator winding therearound, the stator windings being supplied with current to generate sufficient magnetic flux for rotating the impeller. Embodiments provide an integrated motor-compressor assembly including a volute casing housing a rotating impeller to compress a fluid passing therethrough, a stator fixedly positioned in the volute casing proximate to the impeller, the stator including stator poles axially spaced from the impeller, each of the stator poles including a stator winding, the stator windings being supplied with current to generate sufficient axial magnetic flux for rotating the impeller.

Abstract: A networking thermostat is described that includes a main processor and a communications processor. The main processor includes a network manager function, a master messaging function and a slave messaging function while the communications processor includes a wireless radio enabling the thermostat to communicate with other networking thermostats. The networking thermostat is able to operate in a master mode or a slave mode, where the master mode allows the networking thermostat to act as a main gateway between other networking thermostats and a remote server. When in the master mode the networking thermostat can default to a slave if communication with the remote server is lost, thereby allowing one of the other networking thermostats to become a master.

Abstract: A networking thermostat is described that includes a main processor and a communications processor. The main processor includes a network manager function, a master messaging function and a slave messaging function while the communications processor includes a wireless radio enabling the thermostat to communicate with other networking thermostats. The networking thermostat is able to operate in a master mode or a slave mode, where the master mode allows the networking thermostat to act as a main gateway between other networking thermostats and a remote server. When in the master mode the networking thermostat can default to a slave if communication with the remote server is lost, thereby allowing one of the other networking thermostats to become a master.