1. Design and Practical Implementation of a New Markov Model Predictive Controller for Variable Communication Packet Loss in Network Control Systems

Karim Salahshoor; Babak Roshanipour; Iman Karimi

Volume 5, Issue 1 , Winter 2016, , Pages 53-64

http://dx.doi.org/10.22050/ijogst.2016.13829

Abstract
  The current paper investigates the influence of packet losses in network control systems (NCS’s) using the model predictive control (MPC) strategy. The study focuses on two main network packet losses due to sensor to controller and controller to actuator along the communication paths. A new Markov-based ...  Read More

2. A New Method for Multisensor Data Fusion Based on Wavelet Transform in a Chemical Plant

Karim Salahshoor; Mohammad Ghesmat; Mohammad Reza Shishesaz

Volume 3, Issue 3 , Summer 2014, , Pages 62-74

http://dx.doi.org/10.22050/ijogst.2014.6622

Abstract
  This paper presents a new multi-sensor data fusion method based on the combination of wavelet transform (WT) and extended Kalman filter (EKF). Input data are first filtered by a wavelet transform via Daubechies wavelet “db4” functions and the filtered data are then fused based on variance ...  Read More

3. Adoptive Control of Well Drilling Systems

Karim Salahshoor; Behnam Lotfi

Volume 2, Issue 4 , Autumn 2013, , Pages 26-38

http://dx.doi.org/10.22050/ijogst.2013.4794

Abstract
  Control of well drilling operations poses a challenging issue to be tackled. The loss of well control could lead to the occurrence of blowout as a severe threat, involving the risk of human lives and environmental and economic consequences. Conventional proportional-integral (PI) controller is a common ...  Read More

4. Fluid Injection Optimization Using Modified Global Dynamic Harmony Search

Mohammad Khalili; Riyaz Kharrat; Karim Salahshoor; Morteza Haghighat sefat

Volume 2, Issue 3 , Summer 2013, , Pages 57-72

http://dx.doi.org/10.22050/ijogst.2013.3645

Abstract
  One of the mostly used enhanced oil recovery methods is the injection of water or gas under pressure to maintain or reverse the declining pressure in a reservoir. Several parameters should be optimized in a fluid injection process. The usual optimizing methods evaluate several scenarios to find the best ...  Read More