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1. Design for Motor Speed Fractional Order Controller Based on Improved Artificial Bee Colony Algorithm | |||
Huang Liangsong,Yuxia Li | |||
Electrics, Communication and Autocontrol Technology 20 September 2015 | |||
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Abstract:The fractional order PID controller has better performance than the traditional PID controller for servo motor control systems. However, according to the design criteria, the best parameters of fractional order controller exist in nonlinear transcendental equations which are difficult to be solved. In this paper, we adopt artificial bee colony (ABC) algorithm to optimize the solutions of equations. Considering that the standard ABC algorithm is good at exploration but poor at exploitation, we propose an improved ABC algorithm and introduce the powder place elimination mechanism in the search strategy, which decreases the inferior candidate solutions selected randomly by colony bees to search new solutions and narrows the scope of search gradually to improve the ability of local exploitation and speed of convergence. We designed motor speed fractional order controller with the parameters optimized by improved ABC algorithm, results of simulation experiments verified the feasibility, effectiveness and practicability of the algorithm. | |||
TO cite this article:Huang Liangsong,Yuxia Li. Design for Motor Speed Fractional Order Controller Based on Improved Artificial Bee Colony Algorithm[OL].[20 September 2015] http://en.paper.edu.cn/en_releasepaper/content/4655452 |
2. Design, modeling and control of a novel servo stage for direct write manufacturing systems | |||
ZHANG Zhen,WANG Peng,YAN Peng | |||
Electrics, Communication and Autocontrol Technology 08 January 2014 | |||
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Abstract:In this paper we present the design, modeling and control of a novel parallel kinematics XY servo stage for the development of direct writing-based manufacturing systems. Compared with the existing systems, that introducing a high-precision servo stage enables the fabricated devices with more complex topological structure. The advantages of the proposed design lie in low inertia, uniform kinematic conditioning, and dynamically matched axes. Moreover the design of the stage makes the overall actuation system well suited for high-speed contouring in an XY plane.The features of the rolling interface of the linear guideways are studied and experimentally verified. The features of the rolling interface of the linear guideway are studied and experimental verification. kinematics, dynamics, and mechanical design of the system are described. The experimental results demonstrate that the proposed design offers a good performance for high-speed contouring. For the varied pore size of the mask, we propose a time-varying internal model-based control design to tackle the problem of reference trajectories with varying speeds. Contour tracking experiments are conducted to evaluate the system performance. | |||
TO cite this article:ZHANG Zhen,WANG Peng,YAN Peng. Design, modeling and control of a novel servo stage for direct write manufacturing systems[OL].[ 8 January 2014] http://en.paper.edu.cn/en_releasepaper/content/4578093 |
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