The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper proposes a design pattern based on the service-oriented architecture for the design of flexible distributed automation control system for substation automation systems. The design pattern is intended to be applied to control systems based on the leading standards for software development of smart grid: IEC 61850 and IEC 61499. The proposed design pattern models system requirements as orchestrators...
In this paper, the Multi-Agent technology is applied in the advanced manufacturing, and a flexible, integrated, intelligent, networked workshop management control system is proposed. The production scheduling process is described in detail. Finally, the conclusion is drawn by MATLAB simulation.
This paper presents an introductory step in the automatic generation of distributed control software for power distribution automation systems based on Ontology Driven Engineering enabled by industrial standards IEC61850 and IEC61499. The novelty of this approach is the ability of automatically generating the logical connections between the logical nodes. The paper covers the several stages of the...
In this paper an ontology driven approach to the design of control systems, in particular, control applications of IEC 61499 standard is proposed. The source ontology is an ontological description of control object (plant) while the target ontology is an ontological description of a control system implemented using an appropriate programming language. For the ontologies transformation an extension...
In order to protect insulation of 110kV and 220kV transformer neutral-points without earthing and overcome shortcomings in existing protective measurements such as gaps, metal oxide arresters (MOA, shortly), gaps in parallel with MOA, and so on, a new protective measurement was put forward. A controllable gap was used in parallel with MOA. The controllable gap was made up of a fixed gap in series...
This paper mainly describes a method based on structured singular value (μ) for analyzing the robustness of unmanned helicopter flight control system. The helicopter is a complex controlled system with static instability, non-linearity, multi-variables and strong coupling. In this paper, based on the introduction of basic theory of LFT and μ-analysis, the X-Unmanned Helicopter(X-UMH) is chosen as...
Based on automation project of Daping ore-dressing plant in Yunnan province,the application of fuzzy control to the ore-giving system of grinding classification is introduced. The system uses scheme of combining fuzzy control with PID control. Fuzzy control of ore-giving setting value is realized by measuring mill current and adopting two-dimension fuzzy controller. Fuzzy control algorithm and control...
The fuzzy PID controller is proposed to improve the performance of the network pressure-superposed water supply (NPSWS) system. Taking the pump as the load of the asynchronous motor, the whole system can be simplified as a second-order model. On the basis of the model, fuzzy rules are designed to complete on-line parameters adjustments of PID controller. Comparisons are made between the fuzzy PID...
This paper presents a visual billet location control system based on particle swarm optimization in the heating kiln. There is not a fixed lighting, and the environment illumination would change gradually with the change of temperature. This paper proposes a robust detecting method for detecting the moving billet in the heating kiln. The statistical methods are used to classify the sensed image, three...
To improve the effect of the on-line control, a reinforcement learning algorithm presents which is based on CMAC (Cerebella Model Articulation Controller, CMAC) in this article. The algorithm includes two parts, the related search unit and the self-adaptive comment unit. The related search unit CMAC adopts the learning algorithm with instructors, that is, the P gain of fixed-line regulator provides...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.