Modeling and control of two stage twin spool servo-valve for energy-saving

2005 ◽  
Author(s):  
QingHui Yuan ◽  
J.Y. Lew
Keyword(s):  
Energy Saving ◽  
Two Stage ◽  
Modeling And Control ◽  
Servo Valve ◽  
And Control

scholarly journals Modeling and Control of a Combined Heat and Power Unit with Two-Stage Bypass

Energies ◽  
2018 ◽  
Vol 11 (6) ◽  
pp. 1395 ◽  
Author(s):  
Yaokui Gao ◽  
Yong Hu ◽  
Deliang Zeng ◽  
Jizhen Liu ◽  
Feng Chen
Keyword(s):  
Power Unit ◽  
Combined Heat And Power ◽  
Two Stage ◽  
Modeling And Control ◽  
And Control

Modeling and control of a novel pneumatic two-stage piezoelectric-actuated valve

Mechatronics ◽  
2021 ◽  
Vol 75 ◽  
pp. 102529
Author(s):  
Tobias Glück ◽  
Dominik Büchl ◽  
Christian Krämer ◽  
Andreas Pfeffer ◽  
Andreas Risle ◽  
...  
Keyword(s):  
Two Stage ◽  
Modeling And Control ◽  
And Control

Research on Modeling and Control Strategy for Two-Stage Photovoltaic Grid-Connected System

2014 ◽  
Vol 1008-1009 ◽  
pp. 16-21
Author(s):  
Xia Dong ◽  
Li Na Zhang ◽  
Yu Ying Fu ◽  
Cui Lian Ji
Keyword(s):  
Control Strategy ◽  
High Performance ◽  
Dynamic Performance ◽  
Mathematic Model ◽  
Two Stage ◽  
Lcl Filter ◽  
Modeling And Control ◽  
Point Tracking ◽  
Power Point ◽  
And Control

This paper has built the mathematic model of the single-phase two-stage photovoltaic(PV) grid-connected system. The model consists of a boost DC/DC converter and a DC/AC inverter with LCL filter. On the basis of the variable step perturbation and observation method(P&O), the boost converter changes the output voltage of the PV array by adjusting the duty cycle to realize the PV maximum power point tracking(MPPT). The inverter system restrains the voltage fluctuation effectively by using feed-forward of the grid voltage and current tracking control technology, which has the high performance in both sinusoidal reference tracking and disturbance rejection. LCL filter improves the dynamic performance and restrains the high harmonics efficiently. The simulation with Matlab soft confirms the effectiveness of the model and control strategy.

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