[논문]마이크로그리드에서 계통연계 인버터의 자율적이며 끊김없는 모드전환 기법

박성열; 권민호; 최세완

doi:10.6113/tkpe.2019.24.5.349

마이크로그리드에서 계통연계 인버터의 자율적이며 끊김없는 모드전환 기법
A Seamless and Autonomous Mode Transfer Method of Grid-connected Inverter in Microgrid 원문보기

전력전자학회 논문지 = The Transactions of the Korean Institute of Power Electronics, v.24 no.5, 2019년, pp.349 - 355

박성열 (Dept. of Electrical & Information Eng., Seoul Nat'l Univ. of Science and Technology) , 권민호 (Korea Electrotechnology Research Institute (KERI)) , 최세완 (Dept. of Electrical & Information Eng., Seoul Nat'l Univ. of Science and Technology)

Abstract ▼ AI-Helper

A grid-connected inverter with critical loads should be able to supply a stable voltage to critical loads at mode change and during clearing time while detecting unintentional islanding. This study proposes a mode transfer method for a grid-connected inverter with critical loads. The proposed method, which integrates the grid-connected and islanded mode control loops into one control block, provides an autonomous and seamless mode transfer from the current control to the voltage control. Therefore, the proposed scheme can supply a stable voltage to critical loads at mode change and during clearing time. Experimental results are provided to validate the proposed method.

주제어

표/그림 (17)

그림 Fig. 4. Proposed mode transfer algorithm under an ideal conditions where a capacitor voltage reference equal to the grid voltage.
그림 Fig. 1. Micro grid system.
그림 Fig. 2. Grid connected inverter with critical load.
그림 Fig. 3. Transient state when the grid fault occurs.
그림 Fig. 5. Proposed mode transfer algorithm for the practical case.
그림 Fig. 6. Operation principle of the proposed outer voltage control loop when the grid fault occurs.
그림 Fig. 7. Key wave form of the proposed method when the grid fault occurs.
그림 Fig. 9. Simulation waveforms showing mode transition when the grid connected, P=1kW, Q=-1kvar, P_Load=2kW and Q_Load = 0var.
그림 Fig. 8. Simulation waveforms showing mode transition when the grid connected, P=3W, Q=-1kvar, P_Load=2kW and Q_Load=0var.
표 TABLE I SIMULATION SYSTEM SPECIFICATION
그림 Fig. 10. Simulation waveforms showing mode transition when the grid connected, P=1kW, Q=1kvar, P_Load=2kW and Q_Load = 0var.
그림 Fig. 11. Simulation waveforms showing mode transition when the grid connected, P=3kW, Q=1kvar, P_Load=2kW and Q_Load=0var.
그림 Fig. 12. Experiment waveforms showing mode transition when the grid connected, P=1kW, Q=-300var, P_Load=500W and Q_Load=0var.
그림 Fig. 13. Experiment waveforms showing mode transition when the grid connected, P=300W, Q=-300var, P_Load=600W and Q_Load=0var.
그림 Fig. 14. Experiment waveforms showing mode transition when the grid connected, P=300W, Q=300var, P_Load=600W and Q_Load=0var.
그림 Fig. 15. Experiment waveforms showing mode transition when the grid connected, P=1kW, Q=300var, P_Load=500W and Q_Load=0var.
표 TABLE II EXPERIMENT SYSTEM SPECIFICATION

참고문헌 (17)

D. E. Olivares et al., “Trends in microgrid control,” IEEE Trans. Smart Grid, Vol. 5, No. 4, pp. 1905-1919, Jul. 2014.
H. Zhou, T. Bhattacharya, D. Tran, T. S. T. Siew, and A. M. Khambadkone, “Composite energy storage system involving battery and ultracapacitor with dynamic energy management in microgrid applications,” IEEE Trans. Power Electron., Vol. 26, No. 3, pp. 923-930, Mar. 2011.

상세보기
C. Liang, Y. Wang, and J. S. Lai, “Design of parallel inverters for smooth mode transfer microgrid applications,” IEEE Trans. Power Electron, Vol. 25, No. 1, pp. 1288-1924, Jan. 2010.
Z. Yao, L. Xiao, and Y. Yan, "Seamless Transfer of single-phase grid-interactive inverters between grid-connected and stand-alone modes," IEEE Trans. on Power Electronics, Vol. 25, No. 6, 2010.
T. Tran, T. Chun, H. Lee, H. Kim, and E. Nho, "PLL-based seamless transfer control between grid-connected and islanding modes in grid-connected inverters," IEEE Trans. on Power Electronics, Vol. 29, No. 10, 2014.
T. Hwang and S. Park, “A seamless control strategy of a distributed generation inverter for the critical load safety under strict grid disturbances,” IEEE Trans. Power Electron, Vol. 28, No. 10, pp. 4780-4790, Oct. 2013.

상세보기
Y. Mohamed and A. Radwan, "Hierarchical control system for robust microgrid operation and seamless mode transfer in active distribution systems," IEEE Trans. on Smart Grid, Vol. 2, No. 2, 2011.
T. Yu, Y. Bae, S. Choi, and H. Kim, "Indirect current control of utility interactive inverter for seamless transfer," The Transactions of the Korean Institute of Power Electronics, Vol. 11, No. 1, Feb. 2006.
H. Kim, T. Yu, and S. Choi, “Indirect current control algorithm for utility interactive inverters in distributed generation systems,” IEEE Trans. Power Electron., Vol. 23, No. 3, pp. 1342-1347, May 2008.

상세보기
J. Kwon, S. Yoon, and S. Choi, “Indirect current control for seamless transfer of three-phase utility interactive inverters,” IEEE Trans. Power Electron, Vol. 27, No. 2, pp. 773-781, Feb. 2012.

상세보기
H. Oh, S. Choi, T. Kim, G. Lee, and T. Lee, "Anti-islanding method by harmonic injection for utility interactive inverter with critical load," The Transactions of the Korean Institute of Power Electronics, Vol. 17, No. 4, Aug. 2012.
S. Yoon, H. Oh, and S. Choi, "Controller design and implementation of indirect current control based utility-interactive inverter system," IEEE Trans. Power Electron, Vol. 28, No. 1, Jan. 2013.

상세보기
Z. Liu and J. Liu, "Indirect current control based seamless transfer of three-phase inverter in distributed generation," IEEE Trans. Power Electron, Vol. 29, No. 7, Jul. 2014

상세보기
K. Lim and J. Choi, "PR based indirect current control for seamless transfer of grid-connected inverter," in IEEE IPEMC-ECCE Asia, Jul. 2016.
S. Park, J. Kim, A. Jung, and S. Choi, "Parallel operation control method of grid-connected inverters with seamless transfer for energy storage system in microgrid," The Transactions of the Korean Institute of Power Electronics, Vol. 21, No. 3, Jun. 2016.
S. Park, M. Kwon, and S. Choi, "Reactive power P&O anti-islanding method for grid connected inverter with critical load," IEEE Trans. Power Electron, Vol. 34, No. 1, Jan. 2019.
Z. Liu, J. Liu, and Y. Zhao, "A unified control strategy for three-phase inverter in distributed generation," IEEE Trans. Power Electron, Vol. 34, No. 1, Jan. 2019.

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