TY - JOUR
T1 - A Nonlinear, Bounded and Lipchitz Continuous Distributed Active Power Sharing Control Method for Islanded AC Microgrids
AU - Meng, Xiaoxiao
AU - Zhou, Niancheng
AU - Wang, Qianggang
AU - Guerrero, Josep M.
PY - 2019/2
Y1 - 2019/2
N2 - In this paper, a nonlinear, bounded, distributed secondary control (DSC) method is proposed to coordinate all the distributed generators (DGs) in islanded AC microgrids (MGs). This proposed consensus-based DSC strategy can not only guarantee the restoration control of frequency and voltage but also realize an accurate active power sharing control. Through introducing a nonlinear dynamic from beta cumulative distribution function (CDF), the convergence speed of DSC is accelerated, the asymptotical convergence of DSC is ensured, and the transient overshoot of DSC is diminished compared with traditional DSC. Moreover, by ensuring the Lipchitz continuity characteristic of the control algorithm, the common chattering phenomenon in non-Lipchitz DSC scheme is eliminated. The stability and performance of the proposed DSC are also analyzed in this paper. An islanded AC microgrid test system with four inverter-based DGs is built in MATLAB/SIMULINK to further validate the effeteness of the proposed DSC strategy.
AB - In this paper, a nonlinear, bounded, distributed secondary control (DSC) method is proposed to coordinate all the distributed generators (DGs) in islanded AC microgrids (MGs). This proposed consensus-based DSC strategy can not only guarantee the restoration control of frequency and voltage but also realize an accurate active power sharing control. Through introducing a nonlinear dynamic from beta cumulative distribution function (CDF), the convergence speed of DSC is accelerated, the asymptotical convergence of DSC is ensured, and the transient overshoot of DSC is diminished compared with traditional DSC. Moreover, by ensuring the Lipchitz continuity characteristic of the control algorithm, the common chattering phenomenon in non-Lipchitz DSC scheme is eliminated. The stability and performance of the proposed DSC are also analyzed in this paper. An islanded AC microgrid test system with four inverter-based DGs is built in MATLAB/SIMULINK to further validate the effeteness of the proposed DSC strategy.
KW - Chattering phenomenon
KW - Islanded microgrid
KW - Lipchitz continuity
KW - Multi-agent system
KW - Nonlinear distributed secondary control
UR - http://www.scopus.com/inward/record.url?scp=85065167329&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2900172
DO - 10.1109/ACCESS.2019.2900172
M3 - Journal article
AN - SCOPUS:85065167329
SN - 2169-3536
VL - 7
SP - 36843
EP - 36853
JO - IEEE Access
JF - IEEE Access
M1 - 8648177
ER -