Abstract: A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second motor as needed. The first motor provides a lower two-thirds of a full speed range, and the second motor provides the upper one-third in the form of one or more discrete fixed speeds. The system may also include a flow control system for automatically controlling the speed of the motors for particular applications, such as flow control in a pool.

Abstract: A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second motor as needed. The first motor is a variable speed motor providing a lower two-thirds of a full speed range, and the second motor is an induction motor providing the upper one-third in the form of one or more discrete fixed speeds. The system may include a transformer including a first winding tap which provides a first higher speed, and a second winding tap which provides a second higher speed. The system may also include a flow control system for automatically controlling the speed of the motors for particular applications, such as flow control in a pool.

Abstract: A dual motor system includes a first motor providing a lower speed range and a second motor providing a higher speed range, wherein the motors are coaxially arranged and aligned on and drive a common shaft, and a motor control system controlling the speed of the first motor and engaging the second motor as needed. The first motor is a variable speed motor providing a lower two-thirds of a full speed range, and the second motor is an induction motor providing the upper one-third in the form of one or more discrete fixed speeds. The system may include a transformer including a first winding tap which provides a first higher speed, and a second winding tap which provides a second higher speed. The system may also include a flow control system for automatically controlling the speed of the motors for particular applications, such as flow control in a pool.

Abstract: A system and method for monitoring health of equipment. One step of the method includes securing a plurality of sensor modules on to a plurality of pieces of equipment. Each sensor module is secured on to a separate piece of equipment. An additional step includes generating, by each sensor module, sensor data related to the piece of equipment on to which the sensor module is secured. The sensor data includes vibration data for the piece of equipment, temperature data for the piece of equipment, and temperature data for a location exterior to the piece of equipment. An additional step includes processing, by each sensor module, the sensor data generated by the sensor module into a data packet, with the data packet including the sensor data. An additional step includes transmitting the data packet from each sensor module to a gateway over a local communications network. A further step includes transmitting the sensor data from the gateway to a server device.

Abstract: A sensor module for obtaining sensor data relevant to a piece of equipment. The sensor module comprises a housing including a base. The base includes a mounting assembly for securing the sensor module to the piece of equipment. The sensor module additionally comprises a processing assembly at least partially enclosed within an interior space presented by the housing. The processing assembly includes a first temperature sensor configured to measure a temperature of the interior space of the housing. The processing assembly additionally includes a second temperature sensor configured to measure a temperature external to the housing. The processing assembly additionally includes a vibration sensor configured to measure vibrations experienced by the sensor module. The processing assembly further includes a communication element for wirelessly transmitting the sensor data.

Abstract: A system and method of use for self-tuning a PID controller utilized with an exciter and generator is disclosed. The system includes a power source, an exciter electrically connected to the power source, a generator that is electrically energized by the exciter, and a processor that provides a PID controller that calculates an estimated exciter time constant and an estimated generator time constant using particle swarm optimization (“PSO”) to control exciter field voltage. The particle swarm optimization (“PSO”) technique includes increasing the voltage reference by a predetermined percentage over a predetermined time period, initializing each particle position of exciter time constant and generator time constant, calculating generator voltage, performing a fitness evaluation and then obtaining and updating best values. This is followed by repeating the steps of determining the generator voltage, the fitness evaluation, and the best values over a predetermined number of iterations.

Abstract: A system and method of use for self-tuning a PID controller utilized with an exciter and generator is disclosed. The system includes a power source, an exciter electrically connected to the power source, a generator that is electrically energized by the exciter, and a processor that provides a PID controller that calculates an estimated exciter time constant and an estimated generator time constant using particle swarm optimization (“PSO”) to control exciter field voltage. The particle swarm optimization (“PSO”) technique includes increasing the voltage reference by a predetermined percentage over a predetermined time period, initializing each particle position of exciter time constant and generator time constant, calculating generator voltage, performing a fitness evaluation and then obtaining and updating best values. This is followed by repeating the steps of determining the generator voltage, the fitness evaluation, and the best values over a predetermined number of iterations.