Intelligent parallel control

2005 ◽  
pp. 258-276
Author(s):  
Kevin Warwick ◽  
Ben Minbashian
Keyword(s):  
Parallel Control

Metoclopramide as an Analgesic in Severe Migraine Attacks: An Open, Single-blind, Parallel Control Study

2011 ◽  
Vol 6 (2) ◽  
pp. 141-145 ◽  
Author(s):  
Gabriel Salazar ◽  
Marta Fragoso ◽  
Luis Vergez ◽  
Piera Sergio ◽  
Denisse Cuello
Keyword(s):  
Parallel Control ◽  
Single Blind ◽  
Severe Migraine ◽  
Control Study

Microfluidic flow-encoded switching for parallel control of dynamic cellular microenvironments

Lab on a Chip ◽  
2008 ◽  
Vol 8 (1) ◽  
pp. 107-116 ◽  
Author(s):  
Kevin R. King ◽  
Sihong Wang ◽  
Arul Jayaraman ◽  
Martin L. Yarmush ◽  
Mehmet Toner
Keyword(s):  
Microfluidic Flow ◽  
Parallel Control ◽  
Cellular Microenvironments

scholarly journals The Influence of Valve-Pump Weight Ratios on the Dynamic Response of Leaking Valve-Pump Parallel Control Hydraulic Systems

2018 ◽  
Vol 8 (7) ◽  
pp. 1201 ◽  
Author(s):  
Haigang Ding ◽  
Jiyun Zhao ◽  
Gang Cheng ◽  
Steve Wright ◽  
Yufeng Yao
Keyword(s):  
Dynamic Response ◽  
Hydraulic System ◽  
Weight Ratio ◽  
Open Loop ◽  
Hydraulic Systems ◽  
Variable Speed ◽  
Weight Factors ◽  
Wide Range ◽  
Parallel Control ◽  
Valve Control

A new leaking valve-pump parallel control (LVPC) oil hydraulic system is proposed to improve the performance of dynamic response of present variable speed pump control (VSPC) system, which is an oil hydraulic control system with saving energy. In the LVPC, a control valve is operating at leaking status, together with a variable speed pump, to regulate the system flow of hydraulic oil simultaneously. Therefore, the degree of valve control and pump control can be adjusted by regulating the valve-pump weight ratio. The LVPC system design, mathematical model development, system parameter and control performance analysis are carried out systematically followed by an experimental for validation process. Results have shown that after introducing the valve control, the total leakage coefficient increases significantly over a wide range with the operating point and this further increases damping ratios and reduces the velocity stiffness. As the valve-pump weight ratio determines the flow distribution between the valve and the pump and the weight factors of the valve and/or the pump controls determines the response speed of the LVPC system, thus if the weight factors are constrained properly, the LVPC system will eventually have a large synthetic open-loop gain and it will respond faster than the VSPC system. The LVPC will enrich the control schemes of oil hydraulic system and has potential value in application requiring of fast response.

Prism: a Testbed for Parallel Control

1990 ◽  
pp. 182-231
Author(s):  
Mark E. Giuliano ◽  
Madhur Kohli ◽  
Jack Minker ◽  
Irene Durand
Keyword(s):  
Parallel Control

scholarly journals ACTIVITIES OF REGIONAL AUDIT COMMISSIONS IN THE SYSTEM OF STATE AUDIT OF THE REPUBLIC OF KAZAKHSTAN

2021 ◽  
Vol 6 (1(82)) ◽  
pp. 65-68
Author(s):  
M. Tuzubekova ◽  
E. Parzu
Keyword(s):  
Control Measures ◽  
Financial Control ◽  
Effective Management ◽  
State Control ◽  
Rational Use ◽  
Audit Commission ◽  
State Audit ◽  
Parallel Control ◽  
The Republic ◽  
And Control

In this article, the authors analyzed the work of state bodies for audit and financial control, for the correct and rational use of budgetary funds, as well as the activities of the audit commission in the system of state audit in the regions of the Republic of Kazakhstan in modern conditions. Issues of effective management of budgetary funds and strengthening of financial and executive discipline, as well as the importance and necessity of conducting joint or parallel control measures by external state control bodies have been investigated. The author studied the issues of the effectiveness of the use of budgetary funds and control measures

scholarly journals Capacity Limitation Control of Multiple Bi-directional DC-DC Converters for Micro Grid Application

2015 ◽  
Vol 2 (1) ◽  
pp. 61 ◽  
Author(s):  
S. J. Chiang ◽  
Yu-Min Liao ◽  
Ke-Chih Liu
Keyword(s):  
Power Management ◽  
Control Method ◽  
Droop Control ◽  
Control Methods ◽  
Power Capacity ◽  
Capacity Limitation ◽  
Current Sharing ◽  
Parallel Control ◽  
Micro Grid ◽  
Bus Voltage

The micro grid system requires battery for energy storage and power management. In which, the bi-directional DC to DC converter is the key component for maintaining the DC bus voltage and controlling the charge and discharge of the battery with or without grid support. Parallel control of multiple DC to DC converters is a critical technique to enlarge the power capacity. This paper presents two capacity limitation control methods that multiple DC to DC converters can be paralleled with distributed battery banks. The first method is the capacity limitation control with cascaded load current sense needing no control interconnection. The second method is the capacity limitation control with master-slave and cascaded current command limitation. Two methods are presented to solve the limitation of droop control method and active current sharing method respectively, and can be extended without converter number limitation theoretically. Three prototype 240W bidirectional half-bridge DC to DC converters are built and paralleled in this paper. The proposed method is confirmed with some measured results.

scholarly journals A parallel control architecture for industrial robot cells

1998 ◽  
pp. 77-86 ◽  
Author(s):  
Dominik Henrich ◽  
Frank Abegg ◽  
Christian Wurll ◽  
Heinz Wörn
Keyword(s):  
Industrial Robot ◽  
Control Architecture ◽  
Parallel Control

A Novel Test Rig Using Air for Investigation of Vibration and Interaction of Two Steam Turbine Control Valves

2021 ◽  
Author(s):  
Stefan Wallat ◽  
Stefan Preibisch ◽  
Matthias Strauch ◽  
Dieter Brillert
Keyword(s):  
Material Selection ◽  
Pressure Fluctuations ◽  
Steam Turbines ◽  
Test Rig ◽  
Valve Seat ◽  
Scaling Method ◽  
Control Valves ◽  
Parallel Control ◽  
Selection For ◽  
Selection Of

Abstract The governing of steam turbines is often realised by a set of two or more valves, which control the amount of steam entering the turbine. During part-load operation forces caused by pressure fluctuations, turbulence etc. are acting on the throttling valve and lead to spindle vibrations. Besides these mechanisms, it is assumed that there is also an interaction between the control valves, which leads to another source of vibration. In this paper, the design of a new test rig using air with two parallel control valves is presented. One aspect of the design is the chosen scaling method, which includes material selection for the valve spindle, and ensures comparability and transferability of the vibrational behaviour to the full scale with steam. Another aspect is the selection of measurement equipment. The results show that the reasons for valve vibrations can be located both upstream and downstream of the valve seat. Forces caused by pressure fluctuations in and behind the valve gap lead to similar oscillations at both valves. In addition, the upstream valve causes disturbances that lead to partly differing behaviour of the second valve.

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