Development of control system designer for JSBSim FDM

2018 ◽  
Author(s):  
Tomáš Vogeltanz
Keyword(s):  
Control System ◽  
System Designer

Digital Fuel Control of Industrial Gas Turbines

1975 ◽  
Author(s):  
M. L. Hill
Keyword(s):  
Control System ◽  
Control Systems ◽  
Gas Turbines ◽  
System Designer ◽  
Price Range ◽  
New Development ◽  
Industrial Gas Turbines ◽  
Analog Systems

This paper shows how the significant developments available today can bring digital controls within the price range of all but the very simplest control systems and at the same time provide very significant flexibility not possible hitherto, except in the most complicated installations. New development in the form of the microprocessor chip has made it possible to design digital fuel controls at a cost equivalent to current analog systems. These developments free the control system designer from many of his previous limitations, but they also impose new constraints.

Development of a Guideline for the Design of Surge Control Systems

2008 ◽  
Author(s):  
Marybeth G. Nored ◽  
Klaus Brun ◽  
Rainer Kurz
Keyword(s):  
Control System ◽  
System Design ◽  
Control Systems ◽  
Control System Design ◽  
Compressor Station ◽  
System Designer ◽  
Common Reference ◽  
Southwest Research Institute ◽  
Critical Issues ◽  
Surge Control

Under the Gas Machinery Research Council 2007 program, Southwest Research Institute has developed an application guideline to be used in the design and selection of centrifugal compressor surge control systems. The surge control system guideline provides a common reference on the required functionality of the surge control system components. The guideline benefits the user, system designer, and compressor manufacturer by enhancing the understanding of surge control system design to improve performance and reduce unnecessary cost. The guideline also provides methods of evaluating surge control system performance against recommended design criteria. This allows the operating company to determine if the surge control system will meet expectations. This paper highlights the critical issues of surge control system design based on the recommendations of the GMRC guideline. Due to the competing factors in the design of the compressor station, the optimal measurement instrumentation, piping layout and recycle valve are not always available. The surge control system designer must overcome these factors by designing against the limitations of the compressor station, the selected measurement instrumentation, and the various components of the control system.

A controller for safe, convenient operation of LaB6 emitters on electron-beam instruments

1983 ◽  
Vol 41 ◽  
pp. 408-409
Author(s):  
W. J. Abramson ◽  
H. W. Estry ◽  
L. F. Allard
Keyword(s):  
Electron Beam ◽  
Control System ◽  
Thermal Shock ◽  
Appropriate Care ◽  
Electron Guns ◽  
Tungsten Filaments ◽  
Order Of Magnitude ◽  
Main Components

LaB6 emitters are becoming increasingly popular as direct replacements for tungsten filaments in the electron guns of modern electron-beam instruments. These emitters offer order of magnitude increases in beam brightness, and, with appropriate care in operation, a corresponding increase in source lifetime. They are, however, an order of magnitude more expensive, and may be easily damaged (by improper vacuum conditions and thermal shock) during saturation/desaturation operations. These operations typically require several minutes of an operator's attention, which becomes tedious and subject to error, particularly since the emitter must be cooled during sample exchanges to minimize damage from random vacuum excursions. We have designed a control system for LaBg emitters which relieves the operator of the necessity for manually controlling the emitter power, minimizes the danger of accidental improper operation, and makes the use of these emitters routine on multi-user instruments.Figure 1 is a block schematic of the main components of the control system, and Figure 2 shows the control box.

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