Coordinated Wide-Area Damping Control in Modern Power Systems Embedded with Utility-Scale Wind-Solar Plants

ABSTRACT

This paper presents a coordinated wide-area damping control of power system stabilizers (PSSs), static synchronous compensator (STATCOM), and static synchronous series compensator (SSSC) for grid-forming based wind and solar PV generation resources. The main objective of this work is to enhance the damping for inter-area oscillations while maintaining the voltage and frequency in the prescribed range, taking into consideration the operational uncertainties. Better voltage and reactive power support are provided by the use of STATCOM and for additional damping, an SSSC is employed with the coordinated wide-area damping controller (CWADC). Variable-speed wind turbine control methodology strategically combined with inertia control, de-loading control, pitch angle control, and electronic rotor speed control is employed to obtain an optimum response for discontinuous generation mixes and variable wind speed. The geometric measures of controllability/observability and residues method have been utilized to choose the appropriate input control signals and optimal location of CWADC. A multi-objective salp swarm algorithm has been used to optimize the parameters of the proposed CWADC. To demonstrate the efficacy of the proposed CWADC, nonlinear time-domain simulations are performed on a modified IEEE 68-bus test system embedded with hybrid wind-solar power plants considered multiple time delays.

KEYWORDS:

• Coordinated wide-area damping controller
• DFIG
• Grid-forming
• Inter-area oscillation
• Operational uncertainties
• Optimization
• Solar PV

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Arvind Kumar

Arvind Kumar received the BTech degree in electrical engineering from the Rajasthan Technical University, Kota, Rajasthan, India in 2014. He received the MTech degree in power systems from the Gujarat Technological University, Ahmedabad, India, in 2016. Currently, he is pursuing PhD at Engineering College Bikaner, India. His research interests include power system dynamic stability and control, renewable energy generations, wide area control and smart grid. He published over 25 research papers in leading international journals and conferences.

Mahendra Bhadu

Mahendra Bhadu is assistant professor of electrical engineering at Engineering College Bikaner. His research areas include in power systems dynamics, control and stability, grid integration of renewable energy, wide-area control through HVDC/FACTS, and microgrid. He received the MTech (with a gold medal) in power systems from Malaviya National Institute of Technology Jaipur in 2010. He received the PhD degree in power system engineering from Indian Institute of Technology, Delhi (IITD), India, in 2016. He published over 50 research papers in IEEE, IET Proceedings and leading international journal and conferences. Email: [email protected]

Amit Arora

Amit Arora received the BTech degree in electrical instrumentation and communication engineering from the Rajasthan Technical University, Kota, Rajasthan, India in 2009. He received the MTech degree in power systems from the Rajasthan Technical University, Kota, Rajasthan, India in 2015. Currently, he is pursuing PhD at Engineering College Bikaner, India. His research interests include power system stability and control, renewable energy generations, and micro-grid. Email: [email protected]