최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0338939 (2014-07-23) |
등록번호 | US-10241524 (2019-03-26) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 0 인용 특허 : 708 |
A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/
A method and apparatus for a pump control system. One or more embodiments of the invention include a pump controller that can perform a self-calibrating procedure, can provide precise motor speed control, can provide a limp mode before shutting down the motor when system parameters are exceeded and/or fault conditions occur, can detect fault conditions, and can store fault conditions for later retrieval.
1. A method of detecting a fault condition in a pool or spa, the pool or spa being coupled to a pump and a motor, the method comprising: supplying a single-phase input to a controller from an AC bus;measuring a voltage and a current being provided to the controller;correcting a power factor based on
1. A method of detecting a fault condition in a pool or spa, the pool or spa being coupled to a pump and a motor, the method comprising: supplying a single-phase input to a controller from an AC bus;measuring a voltage and a current being provided to the controller;correcting a power factor based on the voltage and the current;coupling a temperature sensor to a heatsink of at least one of the motor and the controller;measuring a DC current on a DC bus to power inverter drives of the motor;generating a variable frequency three-phase output from the inverter drives to the motor;analyzing whether fault conditions have occurred based on (a) the DC current having a value less than a pre-set threshold indicative of a foreign object obstruction to the pump and (b) a temperature of the heatsink measured by the temperature sensor; andshutting down the motor when at least one of the fault conditions have occurred. 2. The method of claim 1, further comprising indicating to a user that the at least one of the fault conditions have occurred. 3. The method of claim 1, further comprising inputting programming information to the controller by at least one of a terminal or serial data bus. 4. The method of claim 1, further comprising the controller stopping the inverter drives to the motor when a short circuit is detected. 5. The method of claim 1, wherein the temperature on the heatsink of the controller is measured and the inverter drives are shut down if the measured temperature is greater than a predetermined threshold. 6. The method of claim 5, wherein a second temperature value of the heatsink is measured with the temperature sensor and the controller attempts to restart the motor if the second temperature value is less than a predetermined temperature limit. 7. The method of claim 1, wherein the motor is one of an AC induction motor, a brushless DC motor, and a switched reluctance motor. 8. The method of claim 1, wherein the controller is configured with at least one of auxiliary relay inputs and auxiliary relay outputs. 9. The method of claim 1, wherein the controller comprises at least one of a digital signal processor and a microcontroller. 10. The method of claim 1, wherein a power factor correction and converter/rectifier module is connected to the inverter drives of the motor via the DC bus. 11. The method of claim 1, wherein the step of shutting down the motor comprises shutting down the inverter drives of the motor. 12. The method of claim 1, wherein correcting the power factor comprises operating a power factor correction module to regulate the power factor. 13. The method of claim 1, wherein correcting the power factor comprises determining the power factor to be 0.9 or greater. 14. The method of claim 1, wherein correcting the power factor comprises determining the power factor to be 0.98 or greater. 15. The method of claim 1, wherein the pump circulates fluid through the pool or spa. 16. The method of claim 15, further comprising analyzing whether the fault conditions have occurred due to the presence of a foreign object obstruction to circulating the fluid through the pool or spa. 17. The method of claim 1, wherein correcting the power factor comprises operating a power factor correction module to regulate the power factor to a constant value under varying pump loads. 18. The method of claim 1, wherein correcting the power factor comprises operating a power factor correction module to regulate the power factor and voltage to constant values under varying pump loads. 19. The method of claim 1, wherein correcting the power factor comprises operating a power factor correction module to regulate the power factor over an operational range of the motor.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.