Evaluating the Stability Impact of the Interconnecting Tie-Line Between Coupled Neighboring Microgrids

Even though microgrids are generally assumed to operate either in grid-connected or islanded modes, as a third alternative, neighboring microgrids may couple together provisionally to exchange power. This is helpful for the remote area microgrids when one of these experiences excessive loading or renewable-based generation or during faults in a section of one microgrid (MG) while no utility feeders exist. Such microgrids may also couple temporarily to lessen the overall electricity generation cost or to improve the overall reliability. To facilitate this connection, the neighboring microgrids should have an interlinking line. This paper analyzes the impact of such an interlinking line on the overall stability of those microgrids, and proposes a suitable interconnection, which can improve the stability of the system of coupled microgrids. To this end, first, a small signal stability model of the system is developed. Numerical analyses, realized in MATLAB, are performed for the interconnection of a few sample microgrids, based on which the general recommendations are derived for improving the stability of such systems.

[1]  Arindam Ghosh,et al.  Coupling Neighboring Microgrids for Overload Management Based on Dynamic Multicriteria Decision-Making , 2017, IEEE Transactions on Smart Grid.

[2]  Juan C. Vasquez,et al.  Hierarchical Control of Droop-Controlled AC and DC Microgrids—A General Approach Toward Standardization , 2009, IEEE Transactions on Industrial Electronics.

[3]  Arindam Ghosh,et al.  Overload management of autonomous microgrids , 2015, 2015 IEEE 11th International Conference on Power Electronics and Drive Systems.

[4]  Sajad Najafi Ravadanegh,et al.  Reliability evaluation of multi-microgrids considering optimal operation of small scale energy zones under load-generation uncertainties , 2016 .

[5]  M. Nthontho,et al.  Rural electrification implementation strategies through microgrid approach in South African context , 2016 .

[6]  Arindam Ghosh,et al.  A decentralized strategy to remedy the power deficiency in remote area microgrids , 2015, 2015 50th International Universities Power Engineering Conference (UPEC).

[7]  Farhad Shahnia,et al.  Dynamic operation and control of a hybrid nanogrid system for future community houses , 2015 .

[8]  Farhad Shahnia,et al.  A practical and intelligent technique for coupling multiple neighboring microgrids at the synchronization stage , 2017 .

[9]  Arindam Ghosh,et al.  Interconnection of two neighboring autonomous microgrids based on small signal analysis , 2015, 2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia).

[10]  Munira BATOOL,et al.  Multi-level supervisory emergency control for operation of remote area microgrid clusters , 2019 .

[11]  Mahmud Fotuhi-Firuzabad,et al.  Stochastic Capacity Expansion Planning of Remote Microgrids With Wind Farms and Energy Storage , 2015, IEEE Transactions on Sustainable Energy.

[12]  Farhad Shahnia,et al.  A suitable mechanism for the interconnection phase of temporary coupling of adjacent microgrids , 2016, 2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia).

[13]  Amin Khodaei,et al.  Provisional Microgrids , 2015, IEEE Transactions on Smart Grid.

[14]  Farhad Shahnia,et al.  Levelized cost of energy and cash flow for a hybrid solar-wind-diesel microgrid on Rottnest island , 2017, 2017 Australasian Universities Power Engineering Conference (AUPEC).

[15]  Bill Rose,et al.  Microgrids , 2018, Smart Grids.

[16]  Arindam Ghosh,et al.  Autonomous operation of multiple interconnected microgrids with self-healing capability , 2013, 2013 IEEE Power & Energy Society General Meeting.

[17]  Farhad Shahnia,et al.  Power transaction management amongst coupled microgrids in remote areas , 2017, 2017 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia).

[18]  Hatem H. Zeineldin,et al.  Stability Evaluation of Interconnected Multi-Inverter Microgrids Through Critical Clusters , 2016, IEEE Transactions on Power Systems.

[19]  Timothy C. Green,et al.  Dynamic Stability of a Microgrid With an Active Load , 2013, IEEE Transactions on Power Electronics.

[20]  Farhad Shahnia,et al.  Cooperative control of battery energy storage systems in microgrids , 2017 .

[21]  Liaqat Ali,et al.  Determination of an economically-suitable and sustainable standalone power system for an off-grid town in Western Australia , 2017 .

[22]  Farhad Shahnia.  Stability and eigenanalysis of a sustainable remote area microgrid with a transforming structure , 2016 .

[23]  Arindam Ghosh,et al.  Development of a Self-Healing Strategy to Enhance the Overloading Resilience of Islanded Microgrids , 2017, IEEE Transactions on Smart Grid.

[24]  Ali Arefi,et al.  Eigenanalysis-based small signal stability of the system of coupled sustainable microgrids , 2017 .

[25]  Yasser Abdel-Rady I. Mohamed,et al.  Voltage and Current Controllability in Multi-Microgrid Smart Distribution Systems , 2018, IEEE Transactions on Smart Grid.

[26]  Arindam Ghosh,et al.  Selection of a suitable microgrid to couple with an overloaded neighboring microgrid based on decision making , 2015, 2015 North American Power Symposium (NAPS).

[27]  Arindam Ghosh,et al.  Overloading conditions management in remote networks by coupling neighboring microgrids , 2015, 2015 50th International Universities Power Engineering Conference (UPEC).

[28]  Jianhui Wang,et al.  Self-Healing Resilient Distribution Systems Based on Sectionalization Into Microgrids , 2015, IEEE Transactions on Power Systems.

[29]  Farhad Shahnia,et al.  Impact of the weightings of different criteria in selecting the suitable microgrids when forming a system of coupled microgrids , 2016, 2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia).

[30]  Amin Khodaei,et al.  Provisional Microgrid Planning , 2017, IEEE Transactions on Smart Grid.

[31]  Yun Zhang,et al.  Online Dynamic Security Assessment of Microgrid Interconnections in Smart Distribution Systems , 2015, IEEE Transactions on Power Systems.

[32]  Robert Lasseter,et al.  Smart Distribution: Coupled Microgrids , 2011, Proceedings of the IEEE.

[33]  Farhad Shahnia,et al.  Tertiary Controller-Based Optimal Voltage and Frequency Management Technique for Multi-Microgrid Systems of Large Remote Towns , 2018, IEEE Transactions on Smart Grid.

[34]  Farhad Shahnia,et al.  Primary control level of parallel distributed energy resources converters in system of multiple interconnected autonomous microgrids within self-healing networks , 2014 .

[35]  Farhad Shahnia,et al.  Provisional internal and external power exchange to support remote sustainable microgrids in the course of power deficiency , 2017 .

[36]  Yun Zhang,et al.  Interactive Control of Coupled Microgrids for Guaranteed System-Wide Small Signal Stability , 2016, IEEE Transactions on Smart Grid.

[37]  Jianhui Wang,et al.  Networked Microgrids for Self-Healing Power Systems , 2016, IEEE Transactions on Smart Grid.

[38]  Arindam Ghosh,et al.  Interconnected microgrids via back-to-back converters for dynamic frequency support , 2014, 2014 Australasian Universities Power Engineering Conference (AUPEC).

[39]  Abdullah Abusorrah,et al.  Optimal Interconnection Planning of Community Microgrids With Renewable Energy Sources , 2017, IEEE Transactions on Smart Grid.