A Decentralized Model Predictive Control for Multiple Distributed Generators in the Islanded Mode of Operation

被引:0
|
作者
Tavakoli, A. [1 ]
Negnevitsky, M. [1 ]
Muttaqi, Kashem M. [2 ]
机构
[1] Univ Tasmania, Hobart, Tas 7001, Australia
[2] Univ Wollongong, Wollongong, NSW 2522, Australia
来源
2015 51ST IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING | 2015年
关键词
distributed generation; voltage-sourced converter; autonomous operation; model predictive control; discrete time sliding mode controller; CONTROL STRATEGY; SYSTEMS; VOLTAGE;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The increasing penetration of distributed and renewable generation presents power systems with a challenge of accommodating multiple inverter-based generators. Distributed generators (DGs), capable of operating in the islanded mode, are often installed in microgrids. However, a control system for operating multiple DGs in the islanded mode using voltage-sourced converter (VSC) is a real challenge under uncertainties in load parameters, unbalanced phase conditions, and transients. This paper proposes a novel approach to decentralized control of multiple DGs. This approach is based on a combination of a voltage controller using model predictive control (MPC) and a fast current controller using discrete time sliding mode controller (DSMC) for limiting the inverter currents under overload conditions. Performance of the proposed control system is compared with a robust servomechanism program (RSP) controller. The proposed control strategy provides fast tracking, robustness, and fast transient recovery in voltage and current under 1) short circuit conditions, 2) load transients and 3) unbalanced loads. Various scenarios including reference signal tracking and robustness against the load perturbations are considered. Results are presented and discussed.
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页数:8
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