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This paper focused on a new type simulation platform. Restricted by the number of network nodes and time step, traditional all digital simulation platform is not fast enough for the modular multilevel converter Based HVDC (MMC-HVDC). This paper presented a real-time digital-analog hybrid simulation platform including 49-level MMC, described the method of calculating the proportion of the platform...
In order to improve the performance of crawler paver's traveling, a new control plan of paver's traveling system was proposed. In the control plan, the left wheel control method adopted velocity closed loop control in order to keep constant-Speed Moving of the paver. The right wheel control method adopted the series structure of fuzzy control and PID control in which the fuzzy controller slightly...
Key technology in design of embedded jacquard knitting control system was introduced in this paper, including technology requirements, real-time requirements, mechanical delays and embedded control system structure. The control system is of compact structure, reasonable design, high performance-price ratio, and can fully meet the jacquard knitting control requirements of the current computerized circular...
Third-generation DCS (Distributed Control System) employ powerful object-oriented design technology to enable efficiency improvements within daily operations and maintenance activities. DCS is operated either in single mode and or it is interfaced with other systems such as PLC, SCADA, and Etc. via network for enhanced functionality. Developing Distributed Control System is a major industrial concern...
MATLAB provides us plenty toolboxes to develop kinds of advantage control algorithms, and PCAuto known as a famous SCADA configuration software is widely used in industry due to its powerful data acquisition function, strong real-time database system and excellent graphic human-machine interface. In this paper, the communication between MATLAB and PCAuto based on OPC (OLE for process control) technology...
COMDES-II is a component-based framework for distributed control systems featuring open architecture and predictable operation under hard real-time constraints. It has been experimentally validated in a number of case studies, including the Medical Ventilator Case Study discussed in the paper. The latter presents COMDES-II design models used to re-engineer the control system of an existing Medical...
Direct support of real-time and control system features in a real-time specification language has a key role in the modeling of such systems. Correct modeling constructs in a specification language simplifies specification construction and enhances specification comprehension. This paper presents enhancements to an executable real-time specification language with constructs to model control systems...
This paper has introduced the application of FIX DMACS industrial control configuration software on hydraulic control technology, and the basic composing of hydraulic experimental platform of hydraulic control valve. With the background of hydraulic experimental platform, it proves FIX DMACS has being applied in this field widely. We exemplify the related characteristics of hydraulic control valve...
Hematopoietic stem cells (HSCs) from the human placenta and umbilical cord blood (UCB) provide a rich source of highly proliferative cells for many clinical uses with advantages over traditional sources like the bone marrow and periphery blood. However, the key current constraint with this source of HSCs is the inadequate number of HSCs cells that can be harvested in a single collection using current...
In this note, we present a real-time model-free reconfiguration mechanism to achieve fault-tolerant control (FTC) and we show the feasibility of this technique with a simple hydraulic plant subject to actuators faults. The main feature of the reconfiguration technique is that it relies solely on the data generated by the actual plant and on the (control) specifications given by a performance functional...
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