Feb 2, 2013 - The first feature article by Mohamed. Ezzeldin, Paul P.J. van den Bosch, and ... and Claude Samson is an introduction to the design of feedback ...
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about this issue
Control of Fluids
I
am pleased to welcome you to this issue of IEEE Control Systems Magazine (CSM). A large proportion of control problems involve the control of fluids, such as coaxing fluids to moving into desired spatial positions or acting as a medium for moving the positions of solid objects into desired spatial positions or orientations. Such fluid control problems are ubiquitous in a wide range of applications including in the process industries, nuclear reactors, biological systems, marine vehicles, and aeronautics. This issue of CSM is devoted to various kinds of fluid control problems.
Digital Object Identifier 10.1109/MCS.2012.2225913 Date of publication: 17 January 2013
The first feature article by Mohamed Ezzeldin, Paul P.J. van den Bosch, and Siep Weiland provide an introduction to the modeling and control of printing quality for drop-on-demand ink-jet printers, describing a technology that has been applied to printed circuit boards; organic transistors; DNA microarrays; and flat panel, plasma, and light-emitting-diode displays. Attention is paid to nonidealities associated with the control of liquid droplets, such as residual vibrations and crosstalk. Experimental closed-loop responses are shown for a feedforward-feedback control system designed to maximize productivity and drop consistency. The second feature article by MinhDuc Hua, Tarek Hamel, Pascal Morin, and Claude Samson is an introduction
to the design of feedback control systems for robotic aerial vehicles with vertical takeoff and landing (VTOL) capabilities. Autonomous VTOL vehicles such as quadrotors, ducted fan tailsitters, and helicopters have become of increasing interest to control engineers, in which force is dynamically applied against the fluid in such a manner as to control the three-dimensional position, velocity, and/or orientation of the vehicle. This article argues that nonlinear control schemes for such vehicles are not inherently more complicated than linear control schemes, while enabling a larger region of operation. The third feature article by Gianluca Antonelli is an overview of control algorithms for interconnected dynamical
Contributors
Mohamed Ezzeldin at the IEEE International Conference on Control and Automation.
Minh-Duc Hua.
Tarek Hamel.
8 IEEE CONTROL SYSTEMS MAGAZINE » FEBRUARY 2013
Paul P.J. van den Bosch.
Pascal Morin.
Siep Weiland.
Claude Samson.
systems, which is another topic that has garnered the interest of many control engineers in recent years. The control problems as well as the particular applications associated with these systems are described by many names in the literature, including multirobot control, swarm intelligence, networked control, control of networks, synchronization, consensus, cooperative control, coordinated control, agent-based systems, distributed cognition, control of platoons, and distributed control. Much of this literature is associated with the control of multiple autonomous aerial vehicles, which is again related to the control of fluids (or more accurately stated as control by fluids). Many of these control problems are overlapping, whereas other control problems are subtly or not so subtly different, and this article attempts to provide some structure into understanding the control problems by characterizing them in terms of the various types of control architectures. In “Applications of Control,” Carlos Ocampo-Martinez, Vicenç Puig, Gabriela Cembrano, and Joseba Quevedo then describe the application of model predic-
tive control strategies to the management of urban water systems, including to the drinking water network in Barcelona, Spain. Model predictive control is shown to simultaneously treat more wastewater, reduce sewage overflow, and reduce flooding compared to the traditional local control strategy. Among the columns in this issue, the “President’s Message” comments on the value of membership in the IEEE and IEEE Control Systems Society (CSS). “CSS News” announces the 1) appointment of the 2013 IEEE CSS Nominating Committee, 2) outcomes and reports from outreach projects supported by the CSS, and 3) appointment of the general chairs for the 2016 IEEE Multiconference on Systems and Control. “Member Activities” describes the portfolio of member activities in the CSS, including the IEEE Fellows program, support for CSS chapters, international affairs, and promoting student member-
Gianluca Antonelli and Andrea on a sunny snow day.
Vicenç Puig.
Gabriela Cembrano.
ship. “People in Control” has interviews with IEEE Fellows Marco C. Campi, Xiaohua Xia, Zhihua Qu, and Guoxiang Gu. “Conference Reports” discusses the 31st Chinese Control Conference meeting that was held in Hefei, China, in July 25–27, 2012. The report is followed by a call for papers for the 2013 IEEE Conference in Decision and Control that will be held in Florence, Italy in December 10–13, 2013. This is followed by a summary of the contributions of Nadav Berman to control engineering including to mechatronics and the estimation and control of nonlinear stochastic systems. “CSS Business” contains the calls for nominations for the IEEE CSS Board of Governors and for IEEE Fellow. If you have ideas for contributing to CSM, please let me know. Richard D. Braatz
Carlos Ocampo-Martinez.
Joseba Quevedo.
FEBRUARY 2013 « IEEE CONTROL SYSTEMS MAGAZINE 9
