کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
699852 1460707 2015 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gain-scheduling control of vapor compression cycle for transient heat-flux removal
ترجمه فارسی عنوان
کنترل زمان چسباندن چرخه فشرده سازی بخار برای حذف شار حرارتی طولانی مدت
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی


• The key objective of control for transient/electronics cooling is dryout avoidance.
• Nonlinearity is better divided with endogenous signals than evaporator heat-load.
• A gain-scheduled controller was designed by blending local robust controllers.
• Static optimization guarantees optimal and safe operations of VCC at steady state.
• Combining control and operating point switching enhances disturbance rejection.

Two-phase cooling is attractive for high heat-flux applications arising in high-power electronics such as LEDs, all-electric vehicles, and radar systems. A key challenge is critical heat-flux that could cause device damage due to dryout. This paper discusses a systematic design of robust and gain-scheduled controls for dryout avoidance in vapor compression cycles. Linear models from various operating points (OP) are clustered to reduce model nonlinearity. H∞H∞ controllers are synthesized to reach local robust stability. The gain-scheduled controller combining local controllers and OP switching shows excellent disturbance rejection performance in experimental comparison with the open-loop operation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Control Engineering Practice - Volume 39, June 2015, Pages 67–89
نویسندگان
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