Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads

Navarro-Rodr�guez, �ngel; Garcia, Pablo; Cano, J.M.; Sumner, M.

Abstract

This paper extensively analyzes the operation limits, system stability and disturbance rejection capability
of the voltage control loops used in master-slave AC and DC Microgrids (MGs). Two different control schemes are studied analytically, simulated and experimentally tested, focusing on Constant Power Loads (CPL). Additionally, the use of the virtual capacitance (VC) as a tool for response enhancement is introduced. The study pursues the proper selection of the controllers gains and minimization of capacitance values by considering the dynamic behavior.

Citation

Navarro-Rodríguez, Á., Garcia, P., Cano, J., & Sumner, M. Limits, stability and disturbance rejection analysis of voltage control loop strategies for grid forming converters in DC and AC microgrids with high penetration of constant power loads. Presented at 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe),

• Conference Name: 2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe),
• End Date: Sep 14, 2017
• Acceptance Date: Mar 1, 2017
• Online Publication Date: Nov 9, 2017
• Publication Date: Sep 11, 2017
• Deposit Date: Mar 19, 2018
• Publicly Available Date: Mar 19, 2018
• Peer Reviewed: Peer Reviewed
• Keywords: Control methods for electrical systems, Microgrid,Non-linear control, Power quality
• Public URL: https://nottingham-repository.worktribe.com/output/881936
• Publisher URL: http://ieeexplore.ieee.org/document/8099228/
• Additional Information: doi:10.23919/EPE17ECCEEurope.2017.8099228
• Contract Date: Mar 19, 2018