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變頻泵控馬達(dá)調(diào)速系統(tǒng)變結(jié)構(gòu)魯棒設(shè)計
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Variable Structure Robust Design for Variable Frequency Pump-control-motor Speed Governing System
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    摘要:

    針對變頻泵控馬達(dá)調(diào)速系統(tǒng)負(fù)載轉(zhuǎn)矩的未知時變特性,，設(shè)計了一種擾動觀測器對負(fù)載轉(zhuǎn)矩擾動進行觀測及補償,。設(shè)計了滑模變結(jié)構(gòu)魯棒控制器,，并進行魯棒性證明，利用其對擾動不敏感特性來抑制各種內(nèi)外干擾的影響,，以提高系統(tǒng)的魯棒性和控制性能。仿真試驗表明,，所設(shè)計的控制器對負(fù)載擾動和參數(shù)攝動的魯棒性較好,，具有較高的速度跟蹤精度和較好的動態(tài)性能，可滿足泵控馬達(dá)調(diào)速系統(tǒng)的控制要求,。

    Abstract:

    A disturbance observer was proposed to estimate and to compensate the load disturbance of the variable frequency pump-control-motor speed governing system. In order to improve the robustness and performance of the system, a sliding mode variable structure controller was designed to weaken the impact on the system of the disturbance. The proof on robustness of the system was conducted. Simulation results verified that the designed controller shows good robustness to the load disturbance and system parameters uncertainty, which effectively improves the precision of speed control and meets the requirements of the pump-control-motor speed governing system. 

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魏海峰,李萍萍,賈洪平.變頻泵控馬達(dá)調(diào)速系統(tǒng)變結(jié)構(gòu)魯棒設(shè)計[J].農(nóng)業(yè)機械學(xué)報,2009,40(10):188-192.Variable Structure Robust Design for Variable Frequency Pump-control-motor Speed Governing System[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(10):188-192.

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