Influence of Dynamic Characteristics of Induction Motor on Voltage Sag Caused by Short Circuit Fault
Tóm tắt
Voltage sag is a significant problem that affects the quality of power, and some researches have been performed on this theme. The characteristic of load is an important factor affecting the voltage sag, which is rarely studied. This paper investigates the influence of dynamic characteristics of induction motor on voltage sag caused by short circuit fault. The analytic expression of induction electromotive force is derived by space vector method. The mechanism of amplitude and waveform changes caused by dynamic load characteristics of induction motor are analyzed. The results indicate that the voltage at the load terminal of the induction motor is higher than that at the static load during the sag. Besides, the voltage sag waveform is not in rectangular shape. The static load terminal voltage returns to normal value quickly, while the voltage at the load terminal of the induction motor needs about 200 ms after the fault is removed. Induction motors can reduce the magnitude of voltage sags caused by short circuit faults, but will extend the duration. At the same time, the bigger the induction motor capacity is, the longer the voltage recovery time after sag is.
Tài liệu tham khảo
Liu Y, Xiao X, Zhang Y, Wang Y, Li K (2015) Interval-valued intuitionistic fuzzy assessment on response event of voltage-sag-sensitive process and its risk. Power Syst Technol 2015(5):1398–1404. https://doi.org/10.13335/j.1000-3673.pst.2015.05.034
Wei P, Xu Y, Wu Y, Chenyi L (2017) Research on classification of voltage sag sources based on recorded events. CIRED Open Access Proc J 2017:846–850
Kong X, Xu Y, Tao S (2015) Sensitive equipment immunity assessment based on a new voltage sag description. Trans China Electrotechn Soc 30(3):165–171
Kamble S, Ch Thorat R (2013) Characteristics analysis of voltage sag in distribution system using RMS voltage method. Int J Electr Power Eng 2013
Kumar N, Chelliah TR, Srivastava SP (2012) Voltage sag effects on energy-optimal controlled induction motor with time-varying loads. Presented at 2012 IEEE International conference on power electronics, drives and energy systems, Bengaluru, India, Dec 16–19, 2012
Wang Z, Wang X, Chung CY (2012) An analytical method for calculating critical voltage sag clearance time of induction motors. IEEE Trans Power Del 27(4):2412–2414
Petronijević M, Veselić B, Mitrović N et al (2011) Comparative Study Of Unsymmetrical Voltage Sag Effects On Adjustable Speed Induction Motor Drives. IET Electr Power Appl 5(5):432–442. https://doi.org/10.1049/iet-epa.2010.0144
Lan Q (2016) Study of voltage sag on typical sensitive equipment and its propagation property. M.S. thesis, North China Electric Power University, Beijing, China
Petronijevic M, Mitrović N, Kostić V et al (2017) An improved scheme for voltage sag override in direct torque controlled induction motor drives. Energies 10(5):663–663. https://doi.org/10.3390/en10050663
Li X (2014) Study of the dynamic process of induction motors caused by voltage sags. Ph.D. dissertation ,China University of Mining and Technology, Beijing, China
Petronijević M, Veselić B, Mitrović N et al (2011) Comparative study of unsymmetrical voltage sag effects on adjustable speed induction motor drives. IET Electr Power Appl 5(5):432–442. https://doi.org/10.1049/iet-epa.2010.0144
Wei H, Yu S, et al (2019) Power quality improvement device for medium-voltage distribution network. In: IEEE Innovative Smart Grid Technologies, Chengdu, China, May 21–24
Patil LS, Thosar MAG (2009) Application of D-STATCOM to mitigate voltage sag due to DOL starting of three phase induction motor. Presented at 2009 International conference on control, automation, communication and energy conservation, Perundurai, Tamilnadu, India, Jun 4–6, 2009
Goswami AK, Gupta CP, Singh GK (2011) Minimization of voltage sag induced financial losses in distribution systems using FACTS devices. Electr Power Syst Res 81(3):767–774. https://doi.org/10.1016/j.epsr.2010.11.003
Qian T, Yonghai XU, Hao H, Liu H, Zhipeng L, Xin AI (2015) A control strategy for peak output current of PV inverter under unbalanced voltage sags. Power Syst Technol 39(3):601–608. https://doi.org/10.13335/j.1000-3673.pst.2015.03.003
He Z (2014) Research on voltage sag of shenzhen power grid. M.S. thesis, South China University of Technology, Guangdong, China
Abdul MR, Vinod K et al (2015) An enhanced voltage sag compensation scheme for dynamic voltage restorer”. IEEE Trans Ind Electron 62(5):2683–2692
Gao JZ, Yang YL, Cui XS (2009) The research of the residual voltage of induction motor after dumping and its influence during restoration. Power Syst Prot Control 37(4):45–48
Leng S, Haque ARNMR, Perera N et al (2016) Smart grid connection of an induction motor using a three-phase floating H-bridge system as a series compensato. IEEE Trans Power Electron 31(10):7053–7064. https://doi.org/10.1109/TPEL.2015.2508422
Xinian LI, Wang Y (2014) Analysis of effects of three-phase imbalance voltage sags on induction motor. Ind Mine Autom 40(11):46–50
Elena H, Ionel L, Anca C (2013) Impact of three-phase voltage dips on the induction motors—an experimental study. Presented at International Symposium on Electrical and Electronics Engineering, Galati, Romania, Oct 11–13, 2013
Mizuo K, Komami S (2012) Parameter identification improvement of dynamic load model in power system. IEEJ Trans Power Energy 132(1):71–76. https://doi.org/10.1541/ieejpes.132.71