A Review on the Classification of Operating Modes in Microgrid Systems
Somaye Yaghoubi
1
(
Najafabad Branch, Islamic Azad University, Najafabad, Iran
)
Majid Dehghani
2
(
Najafabad Branch, Islamic Azad University
)
Majid Moazzami
3
(
Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
)
محمد علی زنجانی
4
(
Faculty of electrical engineering Najafabad branch Islamic Azad University
)
Mohamadreza Moradian
5
(
Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
)
الکلمات المفتاحية: grid-connected mode, islanded mode, microgrid, operation, photovoltaic system,
ملخص المقالة :
A microgrid is an independent electrical system, and it integrates different energy sources to produce power independently or in coordination with the main grid. In this paper, a brief review on the classification of microgrids and how they work in two operating modes is presented. Based on the distribution system, microgrids are classified into alternating current, direct current and hybrid. Microgrids can work in two operating modes, connected to the network and islanded, each of which has unique goals and specific advantages. System stability, integrated power transfer and management of the balance between production and demand are the main challenges in the transition between two modes of microgrid operation. Based on the operation of the microgrid, different control strategies and protection systems are needed. Some control strategies are stated in each mode and a comparison between the two modes is presented. The microgrid system depends on many variables, and therefore their power management and stability are of particular importance. This study will be useful for researchers who work in the field of microgrid application, and it can be used in the design of controllers and protection system of microgrids.
[1] Pagard, E., Shojaeian, S., Rezaei, M.M. (2023). Improving power system low-frequency oscillations damping based on multiple-model optimal control strategy using polynomial combination algorithm. Energy Reports, 10, 1228-1237.
[2] Keyvani, B., Fani, B., Shahgholian, G., Hashemi, M. (2023). Analysis and simulation of island mode operation in inverter-based microgrids with voltage droop controllers. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 15(4), 17-26.
[3] Perez, F. Iovine, A., Damm, G., Galai-Dol, L. , Ribeiro, P.F. (2020). Stability analysis of a dc microgrid for a smart railway station integrating renewable sources. IEEE Trans. on Control Systems Technology, 28(5), 1802-1816.
[4] Shahgholian, G., Shafaghi, P., Moalem, S., Mahdavian, M. (2009). Analysis and design of a linear quad¬r¬a¬t¬i¬c regulator control for static synch¬r¬o¬¬nous compensator. Proceeding of the IEEE/ICCEE, Dubai, 1(1), 65-69.
[5] Issa, W.R., Abusara, M.A., Sharkh, S.M. (2015). Control of transient power during unintentional islanding of microgrids. IEEE Trans. on Power Electronics, 30(8), 4573-4584.
[6] Sharifiyana, O., Dehghani, M., Shahgholian, G., Mirtalaei, S.M.M., Jabbari, M. (2023). Non-isolated boost converter with new active snubber structure and energy recovery capability. Journal of Circuits, Systems and Computers, 32(5), 2350084.
[7] Keyvani-Boroujeni, B., Shahgholian, G., Fani, B. (2020). A distributed secondary control approach for inverter-dominated microgrids with application to avoiding bifurcation-triggered instabilities. IEEE Journal of Emerging and Selected Topics in Power Electronics, 8(4), 3361-3371.
[8] Rajesh, K.S., Dash, S.S., Rajagopal, R., Sridhar, R. (2017). A review on control of ac microgrid. Renewable and Sustai¬nable Energy Reviews, 71, 814–819.
[9] Fooladgar, M., Rok-Rok, E., Fani, B. (2015). Evaluation of the trajectory sensitivity analysis of the DFIG control parameters in response to changes in wind speed and the line impedance connection to the grid DFIG. Journal of Intelligent Procedures in Electrical Techno-logy, 5(20), 37-54.
[10] Nadeem, T.B., Siddiqui, M., Khalid, M., Asif, M. (2023). Distributed energy systems: A revi-ew of classification, technologies, applic¬ati¬ons, and policies. Energy Strategy Reviews, 48, 101096.
[11] Shahgholian, G., Etesami, A. (2011). The effect of thyristor controlled series compensator on power system oscillation damping control. International Review of Electrical Engineering, 5(2), 1822-1830.
[12] Mohammadzamani, F., Hashemi, M., Shahgho¬lian, G. (2023). Adaptive control of nonlinear time delay systems in the presence of output constraints and actuator’s faults. International Journal of Control, 96(3), 541-553.
[13] Mohammed, A., Refaat, S.S., Bayhan, S., Abu-Rub, H. (2019). AC microgrid control and management strategies: Evaluation and review. IEEE Power Electronics Magazine, 6(2), 18-31.
[14] Shahgholian, G., Rajabi, A., Karimi, B. (2010). Analysis and design of PSS for multi-machine power system based on sliding mode control theory. International Review of Electrical Engineering, 4(2), 2241-2250.
[15] Haghshenas, G., Mirtalaei, S.M.M., Mordm-and, H., Shahgholian, G. (2019). High step-up boost-flyback converter with soft switching for photovoltaic applications. Journal of Circuits, Systems, and Computers, 28(1), 1-16.
[16] Kiani, A., Fani, B., Shahgholian, G. (2021). A multi-agent solution to multi-thread protection of DG-dominated distribution networks. International Journal of Electrical Power and Energy Systems, 130, 106921.
[17] Roslan, M.F., Hannan, M.A., Ker, P.J., Mannan, M., Muttaqi, K.M., Mahlia, T.M.I. (2022). Microgrid control methods toward achieving sustainable energy management: A bibliometric analysis for future directions. Journal of Cleaner Production, 348, 131340.
[18] Keyvani-Boroujeni, B., Fani, B., Shahgholian, G., Alhelou, H.H. (2021). Virtual impedance-based droop control scheme to avoid power quality and stability problems in VSI-dominated microgrids. IEEE Access, 9, 144999-145011.
[19] Lam, Q.L., Riu, D., Bratcu, A.I., Labonne, A., Boudinet, C. (2023). Power hardware-in-the-loop validation of primary frequency robust control in stand-alone microgrids with storage units. Electrical Engineering, vol. 105, pp. 317–333.
[20] Lee, H., Kang, J.W., Choi, B.Y., Kang, K.M., Kim, M.N., An, C.G., Yi, J., Won, C.Y. (2021). Energy management system of dc microgrid in grid-connected and stand-alone modes: Control, operation and experimental validation. Energies, 14(3), 581.
[21] Hmad, J., Houari, A., Bouzid, A.E.M., Saim, A., Trabelsi, H. (2023). A review on mode transition strategies between grid-connected and standalone operation of voltage source inverters-based microgrids. Energies, 16, 5062.
[22] Deng, F., Yao, W., Zhang, X., Tang, Y., Mattavelli, P. (2023). Review of impedance-reshaping-based power sharing strategies in islanded ac microgrids. IEEE Trans. on Smart Grid, 14(3), 1692-1707.
[23] Rodriguez-Martinez, O.F., Andrade, F., Vega-Penagos, C.A., Luna, A.C. (2023). A review of distributed secondary control architectures in islanded-inverter-based microgrids. Energies, 16(2), 878.
[24] Kaur, A., Kaushal, J., Basak, P. (2016). A review on microgrid central controller. Renewable and Sustainable Energy Reviews, 55, 338-345.
[25] Dixit, S., Singh, P., Ogale, J., Bansal, P., Sawle, Y. (2023). Energy management in microgrids with renewable energy sources and demand response. Computers and Electrical Engineering, 110, 108848.
[26] Bordbari, M.J., Nasiri, F. (2024). Networked microgrids: A review on configuration, operation, and control strategies. Energies, 17(3), 715.
[27] Issa, W., Sharkh, S., Abusara, M. (2024). A review of recent control techniques of drooped inverter-based ac microgrids. Energy Science and Engineering, 12(4), 1792-1814.
[28] Mousa, H.H.H., Ali, A., Shaaban, M.F., Ismeil, M.A. (2023). Optimal allocation of multiple capacitors in a hybrid AC/DC microgrid for power quality improvement. SN Applied Sciences, 5, 362.
[29] Shahgholian, G., Moazzami, M., Dehghani, M. (2025). A brief review of the application and control strategies of alternating current microgrids in the power system. Technovations of Electrical Engineering in Green Energy System, 4(2), 17-34.
[30] Planas, E., Andreu, J., Gárate, J.I., Alegría, I.M., Ibarra, E. (2015). Ac and dc technology in microgrids: A review. Renewable and Sustainable Energy Reviews, 43, 726-749.
[31] Aghmadi, A., Hussein, H., Polara, K.H., Mohammed, O.A. (2023). Comprehensive review of architecture, communication, and cybersecurity in networked microgrid systems. Inventions, 8(4), 84.
[32] Mirsaeidi, S., Dong, X., Shi, S., Wang, B. (2017). Ac and dc microgrids: A review on protection isseues and approaches. Journal of Electrical Engineering and Technology, 12(6), 2089-2098.
[33] Eghtedarpour, N., Farjah, E. (2014). Power control and management in a hybrid ac/dc microgrid. IEEE Trans. on Smart Grid, 5(3), 1494-1505.
[34] Aprilia, E., Meng, K., Hosani, M.A., Zeineldin, H.H., Dong, Z.Y. (2019). Unified power flow algorithm for standalone ac/dc hybrid microgrids. IEEE Trans. on Smart Grid, 10(1), 639-649.
[35] Lou, J., Cao, H., Meng, X., Wang, Y., Wang, J., Chen, L., Sun, L., Wang, M. (2024). Power load analysis and configuration optimization of solar thermal-PV hybrid microgrid based on building. Energy, 289, 129963.
[36] Jha, S.K., Kumar, D., Lehtonen, M. (2021). Modified V-I droop based adaptive vector control scheme for demand side management in a stand-alone microgrid. International Journal of Electrical Power and Energy Systems, 130, 106950.
[37] Agrawal, R., Changan, D.D., Bodhe, A. (2020). Small signal stability analysis of stand-alone microgrid with composite load. Journal of Electrical Systems and Information Technology, 7, 12.
[38] Mahmoud, M.S., Hussain, S.A., Abido, M.A. (2014). Modeling and control of microgrid: An overview. Journal of the Franklin Institute, 351(5), 2822-2859.
[39] Bisheh, H., Fani, B., Shahgholian, G., Sadeghkhani, I., Guerrero, J.M. (2023). An adaptive fuse-saving protection scheme for active distribution networks. International Journal of Electrical Power and Energy Systems, 144, 108625.
[40] Beheshtaein, S., Savaghebi, M., Vasquez, J.C., Guerrero, J.M. (2015). Protection of ac and dc microgrids: Challenges, solutions and future trends. Proceeding of the IEEE/IECON, Yokohama, Japan, 5253-5260.
[41] Fayazi, H., Fani, B., Moazzami, M. (2021). An offline three-level protection coordination scheme for distribution systems considering transient stability of synchronous distributed generation. International Journal of Electrical Power and Energy Systems, 131, 107069.
[42] Yu, C., Xiao, W. (2024). Synchronizability and synchronization rate of ac microgrids: A topological perspective. IEEE Trans. on Network Science and Engineering, 11(2), 1424-1441.
[43] Marei, M.I., Soliman, M.H. (2013). A coordinated voltage and frequency control of inverter based distributed generation and distr-ibuted energy storage system for auton¬omo-us microgrids. Electric Power Com¬po¬¬nents and Systems, 41(4), 383-400.
[44] Díaz, N.L., Luna, A.C., Vasquez, J.C., Guerrero, J.M. (2017). Centralized control architecture for coordination of distributed renewable generation and energy storage in islanded ac microgrids. IEEE Trans. on Power Electronics, 32(7), 5202-5213.
[45] Han, H., Hou, X., Yang, J., Wu, J., Su, M., Guerrero, J.M. (2016). Review of power sharing control strategies for islanding operation of ac microgrids. IEEE Trans. on Smart Grid, 7(1), 200-215.
[46] Qi, Y., Fang, J., Tang, Y. (2020). Utilizing the dead-time effect to achieve decentralized reactive power sharing in islanded ac microgrids. IEEE Journal of Emerging and Selected Topics in Power Electronics, 8(3), 2350-2361.
[47] Nandi, R., Tripathy, M., Gupta, C.P. (2024). Multi-objective optimization based voltage injection technique for minimizing imbalance and harmonics in ac microgrid. IEEE Trans. on Sustainable Energy, 15(2), 1269-1287.
[48] Shahgholian, G. (2024). A brief review on the application of the virtual impedance method in islanded alternating current microgrids to control reactive power sharing. Hydrogen, Fuel Cell and Energy Storage, 11(3), 189-204.
[49] Acharya, S., Kumar, D.V. (2024). Frequency stabilization and synchronization between grid and ac microgrid. Electric Power Systems Research, 228, 110045.
[50] Chen, Z., Chen, Y., Guerrero, J.M., Kuang, H., Huang, Y., Zhou, L., Luo, A. (2016). Generalized coupling resonance modeling, analysis, and active damping of multi-parallel inverters in microgrid operating in grid-connected mode. Journal of Modern Power Systems and Clean Energy, 4(1), 63-75.
[51] Huanga, W., Lua, M., Zhangb, L. (2011). Survey on microgrid control strategies. Procedia Energy, 12, 206-212.
[52] Chen, Y., Li, J., Wen, Y., Sehnan, M., Xu, W. (2023). A hybrid master–slave control strategy for multiple distributed generators in microgrid. Energies, 16(2), 968.
[53] Wang, J., Chang, N.C.P., Feng, X., Monti, A. (2015). Design of a generalized control algorithm for parallel inverters for smooth microgrid transition operation. IEEE Trans. on Industrial Electronics, 62(8), 4900-4914.
[54] Li, Z., Zang, C., Zeng, P., Yu, H., Li, S. (2018). Fully distributed hierarchical control of parallel grid-supporting inverters in islanded ac microgrids. IEEE Trans. on Industrial Informatics, 14(2), 679-690.
[55] Khayat, Y., Naderi, M., Shafiee, Q., Batmani, Y., Fathi, M., Guerrero, J.M., Bevrani, H. (2019). Decentralized optimal frequency control in autonomous microgrids. IEEE Trans. on Power Systems, 34(3), 2345-2353.
[56] Heins, T., Joševski, M., Gurumurthy, S.K., Monti, A. (2023). Centralized model predictive control for transient frequency control in islanded inverter-based microgrids. IEEE Trans. on Power Systems, 38(3), 2641-2652.
[57] Xiao, J., Wang, L., Qin, Z., Bauer, P. (2024). A resilience enhanced secondary control for ac micro-grids. IEEE Trans. on Smart Grid, 15(1), 810-820.
[58] Lam, Q.L., Bratcu, A.I., Riu, D., Boudinet, C., Labonne, A., Thomas, M. (2020). Primary frequency H∞ control in stand-alone microgrids with storage units: A robustness analysis confirmed by real-time experiments. International Journal of Electrical Power and Energy Systems, 115, 105507.
[59] Shahgholian, G. (2023). A brief overview of microgrid performance improvements using distributed FACTS devices. Journal of Renewable Energy and Environment, 10(1), 43-58.
[60] Farrokhabadi, M., Cañizares, C.A., Simpson-Porco, J.W., Nasr, E., Fan, L., Mendoza-Araya, P.A., Tonkoski, R., Tamrakar, U., Hatziar-gyriou, N., Lagos, D., Wies, R.W., Paolone, M., Liserre, M., Meegahapola, L., Kabalan, M., Hajimiragha, A.H., Peralta, D., Elizondo, M.A., Schneider, K.P., Tuffner, F.K. (2020). Microgrid stability definitions, analysis, and examples. IEEE Trans. on Power Systems, 35(1), 13-29.
[61] Shahgholian, G., Moazaami, M., Honarvar, M.A. (2024). Small signal stability analysis of dynamic behavior of gas turbine power plant with secondary control loop in electric power system. Journal of Simulation and Analysis of Novel Technologies in Mechanical Enginee-ring, 16(1), 23-35.
[62] Singh, P., Paliwal, P., Arya, A. (2019). A review on challenges and techniques for secondary control of microgrid. IOP Conference Series, 561, 012075.
[63] Shahgholian, G. (2024). A brief review of the performance and control of direct current microgrids in power systems. Energy Engineering and Management, 14(1),2-29.
