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US 9,071,183 B2Granted
Methods and systems for providing combined blower motor and draft inducer motor control
AssigneeRegal Beloit America, Inc.
InventorsRoger Carlos Becerra, Ludovic Andre Chretien
Life of this patent
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Abstract
A control system is described that includes a first rotating machine, a second rotating machine, and a motor controller physically mounted to and communicatively coupled with the first rotating machine and communicatively coupled with the second rotating machine. The motor controller includes a first PWM generator operable to generate a first set of pulse width modulated signals for application to the first rotating machine, and a second PWM generator operable to generate a second set of pulse modulated signals for application to the second rotating machine.
Claims22
A control system comprising:
- a first rotating machine;
- a second rotating machine;
- and
- a motor controller physically mounted to and communicatively coupled with said first rotating machine, said motor controller communicatively coupled with said second rotating machine, said motor controller comprising:
- a first pulse width modulation (PWM) generator operable to generate a first set of pulse width modulated signals for application to said first rotating machine;
- a second PWM generator operable to generate a second set of pulse modulated signals for application to said second rotating machine, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
5 more elements
A furnace comprising:
- a first rotating machine operable as a portion of a blower;
- a second rotating machine operable as a portion of a draft inducer;
- and
- a motor controller physically mounted to and communicatively coupled with said first rotating machine, said motor controller communicatively coupled with said second rotating machine, said motor controller comprising:
- a first pulse width modulation (PWM) generator operable to generate a first set of pulse width modulated signals for application to said first rotating machine such that said first rotating machine is operable to drive the blower;
- a second PWM generator operable to generate a second set of pulse modulated signals for application to said second rotating machine such that said second rotating machine is operable to drive a draft inducer, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
5 more elements
A method for controlling a first rotating machine for operation as a blower and a second rotating machine for operation as a draft inducer, said method comprising:
- generating, within a common motor controller physically mounted to the first rotating machine, a first set of pulse width modulated signals, the signals having characteristics such that they operate the first rotating machine in a manner consistent with blower operation;
- generating, within the common motor controller, a second set of pulse width modulated signals, the signals having characteristics such that they operate the second rotating machine in a manner consistent with draft inducer operation, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- receiving signals indicative of at least a direct current (DC) bus voltage drawn by each of the first rotating machine and the second rotating machine at an analog-to-digital converter (ADC);
- and
- applying the first set of pulse width modulated signals and the second set of pulse width modulated signals to the corresponding rotating machines.
2 more elements
A motor comprising:
- a housing;
- an electrical connector extending from said housing;
- a first rotating machine coupled to said housing operable as a portion of a blower;
- a motor controller coupled to said first rotating machine and housed within said housing, said motor controller comprising:
- a first pulse width modulation (PWM) generator operable to generate a first set of pulse width modulated signals for application to said first rotating machine such that said first rotating machine is operable to drive the blower;
- a second PWM generator operable to generate a second set of pulse modulated signals for application to a second rotating machine such that the second rotating machine is operable to drive a draft inducer, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
5 more elements
An outdoor unit for a heating, ventilation and air conditioning (HVAC) system, said outdoor unit comprising:
- a compressor;
- a first rotating machine coupled to said compressor;
- a condenser;
- a second rotating machine coupled to said condenser;
- and
- a motor controller physically mounted to and communicatively coupled with said first rotating machine, said motor controller communicatively coupled with said second rotating machine, said motor controller comprising:
- a first pulse width modulation (PWM) generator operable to generate a first set of pulse width modulated signals for application to said first rotating machine such that said first rotating machine is operable to drive said compressor;
- a second PWM generator operable to generate a second set of pulse modulated signals for application to said second rotating machine such that said second rotating machine is operable to drive said condenser, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
7 more elements
A method for controlling a first rotating machine for operation of a compressor and a second rotating machine for operation of a condenser, said method comprising:
- generating, within a common motor controller physically mounted to the first rotating machine, a first set of pulse width modulated signals, the signals having characteristics such that they operate the first rotating machine in a manner consistent with compressor operation;
- generating, within the common motor controller, a second set of pulse width modulated signals, the signals having characteristics such that they operate the second rotating machine in a manner consistent with condenser operation, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- receiving signals indicative of at least a direct current (DC) bus voltage drawn by each of the first rotating machine and the second rotating machine at an analog-to-digital converter (ADC);
- and
- applying the first set of pulse width modulated signals and the second set of pulse width modulated signals to the corresponding rotating machines.
2 more elements
A motor comprising:
- a housing;
- an electrical connector extending from said housing;
- a shaft extending from said housing operable for physical attachment to a compressor of a heating, ventilation and air conditioning (HVAC) system;
- a first rotating machine within said housing and coupled to said shaft;
- a motor controller communicatively coupled to said first rotating machine and housed within said housing, said motor controller comprising:
- a first pulse width modulation (PWM) generator operable to generate a first set of pulse width modulated signals for application to said first rotating machine such that said first rotating machine is rotated in a manner consistent with compressor operation;
- a second PWM generator operable to generate a second set of pulse modulated signals for application to a second rotating machine such that the second rotating machine is rotated in a manner consistent with condenser operation, wherein the first set of pulse width modulated signals is different than the second set of pulse modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
6 more elements
A rotating machine system comprising:
- a first rotating machine;
- a motor controller communicatively coupled to said first rotating machine, said motor controller operable to:
- generate a first set of pulse width modulated signals for application to said first rotating machine;
- generate a second set of pulse width modulated signals for application to a second rotating machine, wherein the first set of pulse width modulated signals is different than the second set of pulse width modulated signals;
- and
- an analog-to-digital converter (ADC) configured to receive signals from each of said first rotating machine and said second rotating machine, the signals including at least a direct current (DC) bus voltage drawn by each of said first rotating machine and said second rotating machine.
3 more elements
Dependencies are inferred from the claim text.