Abstract
A Smart Grid is an electrical system that is comprised of energy sources, controls, computers and equipment integrated to operate as a unit in the form of an electrical grid to respond to changing power demands. Renewable energy technologies such as a wind turbine are part of this unit. The output power of wind generators experiences dramatic daily fluctuations that are caused by changes in weather patterns. This may adversely affect the power quality and system. To mitigate the effects of these variations, energy storage devices (ESDs) such as superconducting magnetic energy storage system (SMES) can be incorporated into the power system to enhance transient performance and inject or draw electricity to the grid as required. The important role of SMES in the system is to control the system by improving transient stability, which is achieved by use of control technologies. VSC-Based SMES has been used. In this paper, a Proportional-Integral-Derivative (PID) controller and Fuzzy Logic control (FLC) are compared and contrasted. The goal in this paper is to determine which of the two control technologies provides a superior performance while also taking the computational complexity of the simulation into account. Two scenarios in the results have been performed in MATLAB/Simulink 2016b software and the simulation results have validated that FLC is more efficient compared to PID. However, FLC takes approximately 70% more control time.
Highlights
The climate change menace, coupled with the knowledge that fossil fuel reserves may be depleted over a period of time, has resulted in the rapid inclusion of renewable energy technologies
Two types of wind generators have been taken into consideration which are called doubly-fed induction generator (DFIG) and permanent magnet synchronous generator (PMSG)
The Superconducting Magnetic Energy storage (SMES) is controlled by either PID or Fuzzy Logic control (FLC) and a comparison is undertaken
Summary
The climate change menace, coupled with the knowledge that fossil fuel reserves may be depleted over a period of time, has resulted in the rapid inclusion of renewable energy technologies. VSC- and CSC-based SMES are employed in systems that require the control of both reactive and active power independently [3, 5, 11]. Tamura studied FLC based SMES to improve transient stability of an electric system and compared it with the conventional proportional integral (PI) controlled SMES [14]. The outcome of the study shows that both FLC and PI controlled SMES are effective enhancers of transient stability for both balanced and unbalanced faults, though FLC has better performance. The authors proposed an MPC controller to control both ESDs and compared the results with a PID controller to control both ESDs. By focusing only on the SMES device results in both controllers, they resulted same active and reactive output power of wind turbine as well as same voltage sag.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
