Hall, J. F., D. Palejiya, M. L. Shaltout, and D. Chen, "An Integrated Control and Design Framework of Optimizing Time-horizon Energy Capture and Component Life for a Wind Turbine Variable Ratio Gearbox", ASME Journal of Solar Energy Engineering, vol. 137, issue 2, 2015. Website
Shaltout, M., J. Hall, and D. Chen, "Optimal Control of a Wind Turbine with a Variable Ratio Gearbox for Maximum Energy Capture and Prolonged Gear Life", ASME Journal of Solar Energy Engineering, vol. 136, issue 3, pp. 031007-1-7, 2014. AbstractWebsite

An optimal control approach for a wind turbine drivetrain with a variable ratio gearbox is presented. The objective is to find the optimum shifting sequence of the variable ratio gearbox in order to maximize power generation and extend gear life. The employment of a variable ratio gearbox enhances the capabilities of the wind turbine to cope with wind speed variations. Based on the authors' preliminary study, the gear ratios of the variable ratio gearbox were carefully selected to maximize the wind energy capture. In this paper, a new control approach is proposed to achieve both extended gear service life and optimal energy harvesting. This new approach finds the gear shifting sequence that will minimize the tangential force on the gear tooth while maximizing the wind energy capture. The wind turbine drivetrain with a variable ratio gearbox is modeled and simulation results based on recorded wind data of different wind classes are presented and compared.

Ma, Z., M. L. Shaltout, and D. Chen, "Optimal Power Dispatch and Control of an integrated Wind Turbine and Battery System", ASME Journal of Dynamic Systems, Measurement and Control, vol. 139, issue 9, 2017. Website
Yan, Z., V. Yu, M. L. Shaltout, M. C. Cheong, and D. Chen, "Maximizing Wind Energy Capture for Speed-Constrained Wind Turbines During Partial Load Operation", ASME Journal of Dynamic Systems, Measurement and Control, vol. 138, issue 9, 2016. Website
Shaltout, M. L., Z. Ma, and D. Chen, "An Economic Model Predictive Control Approach using Convex Optimization for Wind Turbines", 2016 American Control Conference (ACC), Boston, MA USA, 6-8 July, 2016.
Shaltout, M. L., Optimal Control of Wind Turbines for Distributed Power Generation, , Austin, University of Texas at Austin, 2015.
Ma, Z., M. L. Shaltout, and D. Chen, "An adaptive wind turbine controller considering both system performance and fatigue loading", ASME Journal of Dynamic Systems, Measurement and Control, vol. 137, issue 11, 2015. Website
Shaltout, M. L., A. Malikopoulos, S. Pannala, and D. Chen, "A Consumer-Oriented Control Framework for Performance Analysis in Hybrid Electric Vehicles", IEEE Transactions on Control Systems Technology, vol. 23, issue 4, pp. 1451 - 1464, 2015. Website
Shaltout, M. L., Z. Yan, D. Palejiya, and D. Chen, "Tradeoff Analysis of Energy Harvesting and Noise Emission for Distributed Wind Turbines", Sustainable Energy Technologies and Assessments, vol. 10, pp. 12 - 21, 2015. Website
Ma, Z., Z. Yan, M. L. Shaltout, and D. Chen, "Optimal Real-time Control of Wind Turbine during Partial Load Operation", IEEE Transactions on Control Systems Technology, vol. PP, issue 99, 2015. Website
Tourism