The importance of evaluating valve conditions and detecting the onset of possible
malfunctions is recognized as a key issue in control performance monitoring, as they may …

Oscillatory control loop is a frequent problem in process industries. Its incidence reduces
product uniformity and increases both energy consumption and raw material waste. These …

A non-invasive method for detecting valves suffering from stiction using multi-layer feed-
forward neural networks (NN) is proposed, via a simple class-based diagnosis. The …

This paper focuses on an application of an electro-hydraulic force tracking controller
combined with an offline designed feedback controller (ODFC) and an online adaptive …

The pilot operated directional valves are widely used in hydraulic systems. For the purpose
to improve the dynamic characteristics and control accuracy of the traditional valve, this …

Control valve stiction is a long-standing problem within process industries. In most methods
for shape-based stiction detection, they rely heavily on the traditional controller output (OP) …

The detection and mitigation of stiction are crucial for maintaining control system
performance. This paper proposes the comparison of two preprocessing methods for …

The process control and automation system is one of the significant features in any process
plant. The control valve is considered a fundamental part of the process control system. It …

Control valves suffer from wear and aging as the valves open and close. Such continuous
movements result in many operational issues, and one of the widely known problems is …

Oscillation in control loops is a frequent problem faced in process industries. It deviates the
process variables from their desired condition, affecting negatively plant productivity. To …