Results of High Temprerature Gas Circulation in Supersonic Closed Loop Experimental Facility for CCMHD Power Generation

2006 ◽  
Author(s):  
Yoichi Ogura ◽  
Masakazu Tamura ◽  
R Hombo ◽  
R Tanaka ◽  
D Hoya ◽  
...  
Keyword(s):  
Power Generation ◽  
Closed Loop ◽  
Experimental Facility ◽  
Gas Circulation

Results of the First Power Generation Test in Closed Loop Experimental Facility

2008 ◽  
Author(s):  
Masayuki Hosaka ◽  
Takafumi Ota ◽  
Tsukuru Nakahora ◽  
Tomoyuki Murakami ◽  
Yoshihiro Okuno ◽  
...  
Keyword(s):  
Power Generation ◽  
Closed Loop ◽  
Experimental Facility ◽  
Generation Test

Modeling of a Hydraulic Elevator Driven by an Open-Loop Control

2009 ◽  
Author(s):  
Roberto Strada ◽  
Alberto Oldani
Keyword(s):  
Power Generation ◽  
Closed Loop ◽  
Open Loop ◽  
The Other ◽  
Open Loop Control ◽  
Proportional Valve ◽  
Loop Control ◽  
Complete Knowledge ◽  
Motion Time ◽  
Loop Control System

Electro-hydraulic elevators are widely used systems, especially in low level buildings, due to their very good ratio between power generation and dynamic response. Generally, the goal of an elevator system is just to reach the floor with a precision enough to be comfortable for the passengers, without the need to follow a specific law of motion; hence an open-loop control system could be enough. Otherwise such a kind of solution reduces the number of components, bringing down the costs of production. On the other hand a complete knowledge of the mechanical system’s behaviour is required. In this work we deal with the analysis of the behaviour of a commercial hydraulic elevator driven by an open loop control that monitors the downstream pressure of the proportional valve supplying the cylinder. At the end of the paper, a closed loop solution based on the pressure measurement and on the motion time is proposed.

scholarly journals Numerical Simulation of MHD Flow Behavior and Performance in the Disk MHD Generator of Closed Loop Experimental Facility

2006 ◽  
Vol 126 (9) ◽  
pp. 933-939 ◽  
Author(s):  
Alessandro Liberati ◽  
Tomoyuki Murakami ◽  
Yoshihiro Okuno ◽  
Hiroyuki Yamasaki
Keyword(s):  
Numerical Simulation ◽  
Closed Loop ◽  
Flow Behavior ◽  
Mhd Flow ◽  
Experimental Facility ◽  
Mhd Generator ◽  
And Performance

LQG Controller Design for Identified Wind Turbine Systems

2014 ◽  
Author(s):  
Young-Man Kim
Keyword(s):  
Power Generation ◽  
Wind Speed ◽  
Wind Turbine ◽  
Closed Loop ◽  
Controller Design ◽  
System Simulation ◽  
Full Range ◽  
Optimal Power ◽  
Wind Turbine System ◽  
Safety Reason

In this research, it is developed to design LQG controller for wind turbine systems which are identified with Predictor-Based System Identification (PBSID) technique. The PBSID technique works well under closed-loop condition, which is useful for a system requiring closed-loop operation due to safety reason. First, a wind turbine system is identified using PBSID technique in full range of wind speed. Afterwards, using the identified system matrices, 1-DOF LQG controller is designed. The controller enables power generation to track the optimal power trajectory of a system. Simulation is used to demonstrate its usefulness.

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