Control Strategy for Micro-grid system in islanded mode

• Autorzy: Qiu L. , Xu L. , Zheng Z. , Li Y.

Warianty tytułu

PL

Strategia sterowania mikro-siecią w pracy wyspowej

• Języki publikacji: EN

Abstrakty

EN

This paper focuses on the control strategies for islanded mode micro-grid system, which consists of wind turbines, photovoltaic panels, batteries and super-capacitors. When micro-grid is connected to the utility grid, DC-bus voltage is regulated by the inverter. And the magnitude and frequency of AC bus are the same with the grid. However when the microgrid works in island mode, DC-bus voltage must be regulated by microsouces and storages. The magnitude and frequency of AC bus are controlled by droop character of parallel inverters. Because of the fluctuation of renewable energy such as wind turbine and photovoltaic, a fast-dynamic storage system (such as super-capacity) is needed. In order to keep supplying power to the local loads in island operation, a long-term storage system (such as lead-acid battery) is needed. All of microsouces and storages are connected to DC bus by different converters. The converters must be controlled well to keep the bus voltage stable and the power flow balance.

PL

W artykule przedstawiono analizę algorytmów sterowania dla mikro-sieci odnawialnych źródeł energii (turbiny wiatrowe, panele fotowoltaiczne, superkondensatory), przy pracy wyspowej. Każdy z elementów sieci podłączony jest poprzez oddzielny przekształtnik i każdy z nich wymaga odpowiedniego sterowania w celu utrzymania stabilnego napięcia szyny DC oraz mocy.

Słowa kluczowe

EN

AC-and DC- bus; microgrid; islanded; fuzzy control; droop control

PL

szyna AC i DC; mikrosieć; wyspowość; sterowanie rozmyte; kontrola zapadu

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 3b
• Strony: 57--59
• Opis fizyczny: Bibliogr. 7 poz., schem., tab., wykr.

Twórcy

autor

Qiu L.

• University of Tsinghua, State Key Lab of Electrical Engineering

autor

Xu L.

• University of Tsinghua, State Key Lab of Electrical Engineering

autor

Zheng Z.

• University of Tsinghua, State Key Lab of Electrical Engineering

autor

Li Y.

• University of Tsinghua, State Key Lab of Electrical Engineering

Bibliografia

• [1] Z. Tao, L. Peng, and B. Francois, "Power management strategies of a DC-coupled hybrid power system in a microgrid for decentralized generation," in Power Electronics and Applications, 2009. EPE '09. 13th European Conference on, 2009, pp. 1-10.
• [2] J. Zhenhua and Y. Xunwei, "Hybrid DC- and AC-Linked Microgrids: Towards Integration of Distributed Energy Resources," in Energy 2030 Conference, 2008. IEEE, 2008, pp. 1-8.
• [3] R. H. Lasseter, “MicroGrids,” in Proc. IEEE Power Eng. Winter Meeting, New York, Jan. 2002.
• [4] G. Fang and M. R. Iravani, "A Control Strategy for a Distributed Generation Unit in Grid-Connected and Autonomous Modes of Operation," Power Delivery, IEEE Transactions on, vol. 23, pp. 850-859, 2008.
• [5] P. Piagi and R. H. Lasseter, “Autonomous control of microgrids,” in Proc. IEEE Power Eng. Soc. Meeting, Montreal, Canada, Jun. 2006. [Online]. Available: http://certs.lbl.gov/CERTS_P_DER.html.
• [6] Barklund E, Pogaku N, Prodanovic M, et al. Energy Management in Autonomous Microgrid Using Stability-Constrained Droop Control of Inverters. Power Electronics, IEEE Transactions on, 2008,23(5):2346-2352.K.
• [7] De Brabandere, B. Bolsens, J. Van den Keybus, A. Woyte, J. Driesen, R. Belmans, and K. U. Leuven, "A voltage and frequency droop control method for parallel inverters," in Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual, 2004, pp. 2501-2507 Vol.4