发明名称 |
Process controller having improved surge capacity control and related methodology |
摘要 |
<p>A method and related non-linear level controller (NLLC) for controlling surge capacity in a processing system including at least one vessel receiving an inlet flow of a fluid including a liquid subject to variation and supplying an outlet flow to at least one downstream unit includes the step of computing a first parameter relating to a difference between a current inventory in the vessel and a prevailing inventory limit for the vessel and a second parameter relating to a difference between the current inventory and an inventory set point. An unforced time to reduce the first parameter by a first percentage (T*) is compared to a first time T1. The inlet flow or outlet flow is then controlled based on the first parameter if T* ‰¤ T1 and based on the second parameter if T* > T1.</p> |
申请公布号 |
EP2017686(A2) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20080160298 |
申请日期 |
2008.07.11 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
NATH, RAVI;SHARMA, SANJAY K. |
分类号 |
G05D9/12 |
主分类号 |
G05D9/12 |
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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