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WANG Xiaojun
SHAO Huihe
Department of Automation,
Shanghai Jiaotong University,
Shanghai 200240, China
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NEW DESIGN OF ROBUST OPTIMAL
ARBITRARY TIME-DELAY FILTER*
Abstract:
Zero placement method in the frequency domain is utilized to design robust multi-hump EI optimal arbitrary time-delay filter (OATF) by placing two or more filter zeros near the system poles. A total insensitive OATF can be also achieved if the problem of insensitivity to damping errors is considered. This design strategy is easier to derive and implement. Applications in the anti-swing control of overhead cranes verify the fine performance of this strategy. A better suppression of the load vibrations is obtained using the proposed new OATF, which is more robust to the variation of the cable length.
Key words:
Optimal arbitrary time-delay filter (OATF) Residual vibration Overhead crane |