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Wet flue gas desulfurization system is a desulfurization process which reduces flue gas SO2 content by acid-base reaction and PH value is the main control parameter. Since the system possesses time-varying, large inertia and nonlinear characteristics, the traditional PID algorithm is difficult to obtain satisfactory results in condition that a high demand of steady-state performance and control accuracy...
A portable Sequence of Events (SOE) tester is designed and studied by the paper, which is made up of host and slave computers. CPU is C8051F121 chip whose frequency is 100MHz. Host and slave computers translate data through RS-485 bus. Touching-screen is used to operation and display. Minimal triggering interval time of SOE tester is 0.1ms. There are many Analog-triggering channels in SOE tester that...
Case-based reasoning introduced into RCM analysis process simplifies the tasks of RCM analysis and shortens time. However, redundant features may not only increase the case memory, but also make the case retrieval algorithm more complicated. Additionally, traditional methods of weight allocation increase the human subjective influence on the accuracy of case retrieval. This paper applies fuzzy rough...
With the development of industry, maintenance has become an important factor that influences survival and development of a corporation. It is an effective way for a power plant to achieve management modernization and enhance market competition by making condition based maintenance. There are numerous pieces of equipment in a power plant, but the maintenance requirement is different for respective...
Aiming at the difficulty in selecting the maintenance mode for power plant equipment with ration, the fuzzy comprehensive evaluation method based on entropy weight and analytic hierarchy process (AHP) is suggested. It combines entropy weight with AHP for against the casualness and subjectivity in traditional method. With the method, the mode is divided into some layers composed of index factors, and...
With the developing of industry, maintenance has become an important factor that influences survival and development of the business. There are numerous pieces of equipment in a power plant, but the maintenance requirement is different for respective equipment, so making condition based maintenance in a power plant is a systemic and integrative activity in maintenance management. As an interdisciplinary...
Aiming at the difficulty in evaluating the falt risk of the power plant equipment with quantitative method, fuzzy comprehensive evaluation method based on analytic hierarchy process (AHP) is proposed with the help of the theory of fuzzy mathematics. With this method the mathematical model is constructed, and the weight coefficient of each factor is suggested as well as the calculation process. The...
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