An energy efficient pneumatic-electrical system and control strategy development

2011 ◽  
Author(s):  
Xing Luo ◽  
Hao Sun ◽  
Jihong Wang
Keyword(s):  
Control Strategy ◽  
Energy Efficient ◽  
Strategy Development ◽  
Electrical System ◽  
And Control

scholarly journals Development and control strategy research for subsea all-electric actuators

2021 ◽  
Author(s):  
Peng Liu ◽  
Kewen Wang ◽  
Qianqian Chen ◽  
Jinfeng Cao ◽  
Jie Liu ◽  
...  
Keyword(s):  
Control Strategy ◽  
Production Systems ◽  
Superior Performance ◽  
Fuzzy Pid ◽  
Servo Motor ◽  
Electrical System ◽  
Synchronous Control ◽  
Single Motor ◽  
Christmas Trees ◽  
And Control

Abstract The development of subsea all-electric Christmas trees is an area of focus in the offshore oil industry worldwide. The main difficulties are associated with the development and control strategies for subsea all-electric actuators, which are the most critical components of subsea Christmas trees. In this paper, a single-motor level fuzzy PID control with an integrated working condition detection module and a 3-motor redundant-level deviation strategy with coupled joint synchronous control were proposed to realize the real-time determination of algorithm parameters according to the working conditions, accelerate convergence to solve the problem of rapid redistribution, maintain the fast speed of the servo motor of the subsea all-electric tree valve actuator, conduct simulation analyses of the synchronous control model, build the synchronous control electrical system and test this system. With the simulation analysis, a synchronous control electrical system was built, tested and verified. The simulation results of the control strategy show that the proposed single-motor fuzzy PID-deviation coupled control strategy in this paper tends to be stable approximately 0.2 s after the system is started; additionally, with this approach, the convergence speed is faster than that of the traditional PID method, tracking errors are highly reduced, and robustness to load shocks is decreased. The test results show that when the inlet pressures are 1.0 MPa, 1.5 MPa and 2.0 MPa and the three servo motors simultaneously work, the control effect is good, the synchronization effect is good. When one servo motor fails, the two redundant servo motors can still control the all-electric valve actuator and provide good synchronization control capabilities. When the inlet pressure is 1.0 MPa, 1.5 MPa and 2.0 MPa, whether the system is in normal operation or a servo motor fails, the vertical and horizontal vibration values of the system are within reasonable ranges. This result verifies that the proposed control strategy yields superior performance in power distribution compared to traditional systems and strong robustness. The synchronous control strategy can be applied to the synchronous control problem of subsea all-electric production systems, which is of great significance for the development of subsea all-electric production systems.

scholarly journals Optimizing the Energy-Efficient Metro Train Timetable and Control Strategy in Off-Peak Hours with Uncertain Passenger Demands

Energies ◽  
2017 ◽  
Vol 10 (4) ◽  
pp. 436 ◽  
Author(s):  
Jia Feng ◽  
Xiamiao Li ◽  
Haidong Liu ◽  
Xing Gao ◽  
Baohua Mao
Keyword(s):  
Control Strategy ◽  
Energy Efficient ◽  
Train Timetable ◽  
And Control

scholarly journals Modeling and Control Strategy Development for Fuel Cell Electric Vehicles

2004 ◽  
Vol 37 (22) ◽  
pp. 1-8 ◽  
Author(s):  
Andreas Schell ◽  
Huei Peng ◽  
Doanh Tran ◽  
Euthie Stamos ◽  
Chan-Chiao Lin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Strategy Development ◽  
Modeling And Control ◽  
Fuel Cell Electric Vehicles ◽  
And Control

Modeling, Validation and Control Strategy Development of a Hybrid Super Sport Car Based on Lithium Ion Capacitors

2020 ◽  
Author(s):  
Alessandro Franceschi ◽  
Nicolo Cavina ◽  
Riccardo Parenti ◽  
Maurizio Reggiani ◽  
Enrico Corti
Keyword(s):  
Control Strategy ◽  
Lithium Ion ◽  
Strategy Development ◽  
And Control

Modelling and control strategy development for fuel cell electric vehicles

2005 ◽  
Vol 29 (1) ◽  
pp. 159-168 ◽  
Author(s):  
Andreas Schell ◽  
Huei Peng ◽  
Doanh Tran ◽  
Euthie Stamos ◽  
Chan-Chiao Lin ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electric Vehicles ◽  
Control Strategy ◽  
Strategy Development ◽  
Fuel Cell Electric Vehicles ◽  
And Control

scholarly journals Malaria in Sucre State, Venezuela

2000 ◽  
Vol 16 (4) ◽  
pp. 1127-1131 ◽  
Author(s):  
Robert H. Zimmerman
Keyword(s):  
Disease Control ◽  
Control Strategy ◽  
Community Involvement ◽  
Ecosystem Approach ◽  
Strategy Development ◽  
Health Issues ◽  
Malaria Research ◽  
Important Health ◽  
Integrated Disease Control ◽  
And Control

The author reviews the malaria research program in Sucre State, Venezuela, taking an ecosystem approach. The goal was to determine which methods could have been introduced at the onset that would have made the study more ecological and interdisciplinary. Neither an ecosystem approach nor integrated disease control were in place at the time of the study. This study began to introduce an ecosystem approach when two contrasting ecosystems in Sucre State were selected for study and vector control methods were implemented based on research results. The need to have a health policy in place with an eco-health approach is crucial to the success of research and control. The review suggests that sustainability is low when not all the stakeholders are involved in the design and implementation of the research and control strategy development. The lack of community involvement makes sustainability doubtful. The author concludes that there were two interdependent challenges for malaria control: development of an ecosystem approach for malaria research and control, and the implementation of an integrated disease control strategy, with malaria as one of the important health issues.

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