Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"distributed control system"”.
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Electroplating process plant automation and management using emerging automation and communications technologies
… is currently facing some challenging process control problems in their production plant due to an insufficient level of automation being applied in the industry; the control is largely manual, and the monitoring of both plant and processes is ad hoc. The requirement for higher production …
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Determining the operation limits of two distillation columns
… the two distillation columns. With the use of a distributed control system (DCS) and glass equipment in the pilot plant, these phenomena are analyzed visually and with the help of instrumentation readings. The energy usage and production limits of both distillation columns are discussed. The …
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Synchronized Communication Network for Real-Time Distributed Control Systems in Modular Power Converters
… power converters are pursuing high-performance distributed control systems. As opposed to the centralized control architecture, the distributed control architecture features shared computational burdens, pulse-width modulation (PWM) latency compensation, simplified fiber-optic cable connection, …
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Experimental Investigation and Evaluation of Future Active Distribution Networks
… SSEZ has been developed by the author. Controllable emulated SSEG, controllable energy storage and controllable emulated load are incorporated into this laboratory. A transformation system has been developed to relate the operation of this system to that of low voltage distribution …
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Languages and Tools for Optimization of Large-Scale Systems
… reduction problem, and an optimization-based control problem have been formulated and solved. A start-up optimization problem for a plate reactor has been formulated in Optimica, and solved by means of the Optimica compiler. In addition, the robustness properties of the start-up trajectories …
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A concurrent architecture for a travel planning application
… architecture is similar to that of a production system, particularly a blackboard architecture, except that we insist on a distributed control system and use procedural tasks and subtasks rather than declarative knowledge sources. Unlike blackboard systems, the solutions that are created are …
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Stability and Performance of Propulsion Control Systems with Distributed Control Architectures and Failures
Future aircraft engine control systems will be based on a distributed architecture, in which, the sensors and actuators will be connected to the Full Authority Digital Engine Control (FADEC) through an engine area network. Distributed engine control architecture will allow the implementation of …
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Satisfying Distributed Joint Control Timing Constraints
When controlling the real-time system that is a robotic joint, reliability is the chief concern. Implementing controllers via embedded software imposes several limitations on the controller frequency, such as algorithm latency and supplemental processes (like networking) competing for execution …
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A structural method for the design of fault tolerant distributed control systems
Distributed digital control systems provide alternatives to conventional, centralised digital control systems. Typically, a modern distributed control system will comprise a multi-processor or network of processors, a communications network, an associated set of sensors and actuators, and the …
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Power Management and Control Strategies in Hybrid AC/DC Microgrids
The future trend of the power system is to ensure reliable, flexible, affordable and efficient power supply for customers with lower emissions. Conventional AC or DC microgrid suffers from increased losses and lower efficiency due to several AC-DC and DC-AC conversions. Therefore, hybrid microgrid …
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An integrated design, simulation and programming environment for modular manufacturing machine systems
… important attributes for manufacturing machine systems to satisfy the needs of the global competitive markets. By agility, it means that manufacturing machine systems can respond to changes in products and processes within the shortest time and at the minimum cost. To accomplish such a …
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Energy-efficient control of a smart grid with sustainable homes based on distributing risk
The goal of this thesis is to develop a distributed control system for a smart grid with sustainable homes. A central challenge is how to enhance energy efficiency in the presence of uncertainty. A major source of uncertainty in a smart grid is intermittent energy production by renewable energy …
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Steam temperature and flow maldistribution in superheater headers
… pressure, was provided from the power plant's Distributed Control System (DCS) and was used as boundary conditions for the CFD models. The exact mass flow distribution across the inlet stubs of the outlet stubbox header was unknown and was estimated using a CFD model of the inlet stubbox header …