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Applicability of bridge-type pneumatic energy-saving systems and its experimental validation
Hongwang Du1, Chaochun Hu1, Wei Xiong1
1Ship Electromechanical Equipment Institute, Dalian Maritime University, China.
Heliyon
|May 13, 2020
Summary
This study optimizes bridge-type pneumatic systems for energy savings. The research found these systems are effective within specific operating ranges but can become unstable outside them, requiring careful application.
Area of Science:
- Engineering
- Control Systems
- Energy Efficiency
Background:
- Bridge-type pneumatic systems utilize air expansion for energy-saving control of air cylinders.
- These systems often exhibit sensitivity, leading to poor control accuracy and limited applicability.
Purpose of the Study:
- To develop and validate an optimized control strategy for bridge-type pneumatic systems.
- To assess the energy-saving potential and stability of these systems under varying conditions.
Main Methods:
- A nonlinear dynamic optimization model was created with air consumption as the objective function.
- A simultaneous collocation method determined optimal on-off time sequences.
- An optimization performance rating was introduced to evaluate energy savings and stability.
Main Results:
- The bridge circuit demonstrated applicability within defined working condition ranges for specific action systems.
- Instability, including rebound and impact, was observed when operating outside these optimal ranges.
Conclusions:
- Bridge-type pneumatic systems offer energy-saving benefits but require precise control within validated operating parameters.
- Further testing and refinement are necessary to enhance stability and broaden the applicability of these systems.
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