ECE Seminar
Thursday, January 23, 2014 3:00-4:00 101 ATRC
Control and Operation of AC/DC Hybrid Smart Power Systems (Microgrids)
by
VahidSalehi
Modern power networks incorporate communications and information technology infrastructures into the electrical power system to create a smart grid in terms of control and operation. The smart grid enables real-time communication and control between the consumers and utility allowing suppliers to optimize energy usage based on price preference and system technical issues. The smart grid aims are to provide overall power system monitoring, create protection and control strategies to maintain system optimal performance, stability and security.
This seminarpresents the development of a unique and novel smart grid testbed lab with integrated monitoring, protection and control systems. The implementation of this system in the real-time software creates an environment for studying, implementing and verifying the novel control and protection schemes developed here. Phasor measurement techniques was developed by available Data Acquisition (DAQ) devices in order to monitor all points of the power system in real-time. This provides a practical view of system parameter changes, system abnormal conditions and its stability and security information in the wide area. This will provide valuable measurements for technical operators of the system in energy control centers. Real-time monitoring is an excellent solution for improving system planning, operation and energy trading in addition enabling advanced applications in Wide Area Monitoring, Protection and Control (WAMPAC).
A design for DC microgrid was developed to integrate it to the AC system with appropriate control capability. This system represents realistic hybrid AC/DC microgridsincluding renewable such as Photovoltaic, Wind and Fuel Cells and their connectivity issues to the AC side to study the use of such architecture in system operation.
In addition this seminar explores the challenges and feasibility of the implementation of real-time system analysis features in order to monitor system security and stability indices. Furthermore, real-time energy management solutions wereinvestigated to optimally manage the power sharing between AC generators and DC side resources and evaluate the effects of using energy storages in applications such as mitigating heavy loads on the system stability and operational security, electric vehicles’ charging/discharging, and ramp rate control of Photovoltaic Power Plant Output.
VahidSalehiis Power Analytics’ Senior Power System engineer. His varied research experience, design knowledge and hands-on expertise on a wide variety of power engineering subjects provide a unique combination of academic excellence and practical wisdom. His experience includes 10 years of experience using various power systems tools on a wide range of projects. He has performed numerous power systems studies for clients in transmission, distribution and industrial manufacturing facilities. He holds a PhD from the Florida International University in Miami, FL, and an MSEE from the School of Electrical Engineering, University of Tehran. Vahid has published numerous journal articles, conference papers and presented topics on various power system subjects. His research interests include Smart Grid, Renewable Energy Integration and Energy Conversion in Power System. Additionally his interests extend to Dynamic Modeling of Power Systems, Stability, Wide Area Monitoring, Control and Protection of Power Systems.
Open to the public