发明名称 |
SELF TUNING PULL-DOWN FUZZY LOGIC TEMPERATURE CONTROL FOR REFRIGERATION SYSTEMS |
摘要 |
A pull-down control algorithm for an HVAC refrigeration system (100) is provided. The control algorithm utilizes a fuzzy logic methodology to automatically adjust a flow of refrigerant in the system (100) during a pull - down to maintain a desired pull-down rate. The desired pull-down rate is decreased proportionately as the temperature of the fluid being pulled down approaches a desired operating setpoint to avoid or minimize any overshoot o f the operating setpoint. The desired pull-down rate is obtained by adjusting a rate sensitivity factor used in the control algorithm. When the temperature of the fluid being pulled down is above a predetermined value from the operatin g setpoint, the control algorithm uses a fuzzy logic methodology to determine a rate sensitivity that results in the desired pull-down rate that approaches the operating setpoint without overshoot. |
申请公布号 |
CA2436226(C) |
申请公布日期 |
2005.11.15 |
申请号 |
CA20022436226 |
申请日期 |
2002.12.19 |
申请人 |
YORK INTERNATIONAL CORPORATION |
发明人 |
MILLER, WANDA J.;BEAVERSON, GREGORY K. |
分类号 |
F24F11/02;G05B5/01;G05B13/02;G05D23/19;(IPC1-7):G05B13/02 |
主分类号 |
F24F11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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