نتایج جستجو برای: speed governor

تعداد نتایج: 209277  

Journal: :Advances in transdisciplinary engineering 2022

The electronic governor uses an algorithm to control the drive actuator adjust speed. It is more accurate than traditional mechanical governor. This article starts from research and analysis of function Viking35 diesel engine governor, a model-based design Method, realized type with simple functions, completed its modeling, virtual engine, analyzed starting process, acceleration curve load regu...

2014
Rami A. Maher Ibraheem K. Ibraheem

This work presents a comparison study between the state-space and polynomial methods for the design of the robust governor for load frequency control of steam turbine power systems. The robust governor is synthesized using the two approaches and the comparison is extended to include time and frequency domains performance, controller order, and uncertainty representation, weighting filters, opti...

Journal: :Micromachines 2016
Ziliang Cai Jiwen Xiang Hualing Chen Wanjun Wang

This paper presents an innovative mixing technology for centrifugal microfluidic platforms actuated using a specially designed flyball governor. The multilayer microfluidic disc was fabricated using a polydimethylsiloxane (PDMS) replica molding process with a soft lithography technique. The operational principle is based on the interaction between the elastic covering membrane and an actuator p...

2002
Ilya V. Kolmanovsky

The paper discusses several Lyapunov-based controller and observer techniques that enhance the conventional Speed-Gradient control design approach. Our developments cover the treatment of the derivative action, time-delays, backstepping via dynamic surface control, and feedforward governor to satisfy pointwise-in-time constraints. Some of these enhancements have been already proposed in the pri...

Journal: :Communications Faculty Of Science University of Ankara 2017

2013
M. G. Patel A. V. Doshi

-Changing some geometric characteristic of the impeller in centrifugal pumps improves their performance. It is known that blade exit angle plays very important role in the performance of a centrifugal pump. To investigate effect of blade exit angle on the performance of centrifugal pump by means of experiment is very expensive and lengthy process. Due to expensive and lengthy process, it can be...

This work proposes a neural-fuzzy sliding mode control scheme for a hydro-turbine speed governor system. Considering the assumption of elastic water hammer, a nonlinear mode of the hydro-turbine governor system is established. By linearizing this mode, a sliding mode controller is designed. The linearized mode is subject to uncertainties. The uncertainties are generated in the process of linear...

2015
Weijia Yang Jiandong Yang Wencheng Guo Wei Zeng Chao Wang Linn Saarinen

This paper presents a mathematical model of hydro power units, especially the governor system model for different operating conditions, based on the basic version of the software TOPSYS. The mathematical model consists of eight turbine equations, one generator equation, and one governor equation, which are solved for ten unknown variables. The generator and governor equations, which are differe...

Journal: : 2022

Electronic speed governors have become widespread on marine diesel engines. In comparison with hydromechanical ones, they an additional setting parameter – input signal sensitivity. This allows changing the response of to high-frequency disturbances. camshaft engines, such disturbances are generated when cams run over fuels pump push rods, while in ME (MAN Energy Solutions) or RT-flex (Wärtsilä...

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