Influence of Connecting Cables on Stator Winding Overvoltage Distribution under High-Frequency Pulse Width Modulation
Source abstract
Abstract
In the variable frequency motor drive system, because the cable impedance does not match the motor impedance, the reflection wave of the voltage wave will be generated. The superposition of reflected voltage waves can lead to overvoltage at the motor ends, which can damage the insulation structure. In this paper, the equivalent circuit models of cable and stator winding are established, respectively. The overvoltage distribution under different power supply frequencies and cable lengths is simulated and analyzed. The influence mechanism of power supply frequency and cable length on the overvoltage distribution of stator winding are studied. The simulation results show that the overvoltage of the first pulse falling edge will be superimposed on the overvoltage of the second pulse rising edge under high-frequency conditions, resulting in a further increase in the overvoltage. The voltage appears in all coils after the middle of the winding. The ground voltage is up to 1.32 times the input voltage, and the inter-turn voltage is up to 9.2 times the average voltage. The increase in cable length will lead to an increase in ground voltage, but the increase in speed will slow down after exceeding the critical length of 300 m. The maximum ground voltage can reach 1.93 times of the input voltage, which is 3.6% different from the calculation result under ideal conditions. The inter-turn voltage changes with the cable length in an N-shaped manner, up to 185 V. The results of this paper are of great significance to further study the insulation design of generator end input.
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Research context
OpenAlex topics: High voltage insulation and dielectric phenomena · Electromagnetic Compatibility and Noise Suppression · Lightning and Electromagnetic Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Goldwind Science and Technology Innovation Wind Power Equipment Co., Ltd., Beijing 100176, China
School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
References (25)
Show source-provided references
1. (2024, June 28). Global Wind Report. Available online: https://gwec.net/global-wind-report-2024/.
2. Wu, Y.-K., Su, Y.-S., Su, P.-E., and Wu, T.-Y. (2017, January 6–11). Economics- and reliability-based design for an offshore wind farm. Proceedings of the 2017 IEEE/IAS 53rd Industrial and Commercial Power Systems Technical Conference (I&CPS), Niagara Falls, ON, Canada.10.1109/ICPS.2017.7945091 ↗
3. Qiao, W., and Lu, D. (2015, January 15–17). A Survey on Wind Turbine Condition Monitoring and Fault Diagnosis—Part I: Components and Subsystems. Proceedings of the IEEE Transactions on Industrial Electronics, Auckland, New Zealand.
4. Failure Mechanism of Die-Attach Solder Joints in IGBT Modules Under Pulse High-Current Power Cycling10.1109/JESTPE.2018.2871474 ↗
5. von Jouanne, A., and Enjeti, P. (1996, January 3–7). Design considerations for an inverter output filter to mitigate the effects of long motor leads in ASD applications. Proceedings of the Applied Power Electronics Conference, APEC’96, San Jose, CA, USA.
6. Arnedo, L., and Venkatesan, K. (2003, January 1–4). High-frequency modeling of induction motor drives for EMI and overvoltage mitigation studies. Proceedings of the IEEE International Electric Machines and Drives Conference, IEMDC’03, Madison, WI, USA.10.1109/IEMDC.2003.1211305 ↗
7. An improved inverter output filter configuration reduces common and differential modes dv/dt at the motor terminals in PWM drive systems10.1109/63.728340 ↗
8. Source of induction motor bearing currents caused by PWM inverters10.1109/60.486572 ↗
9. Application issues for PWM adjustable speed AC motor drives10.1109/2943.532149 ↗
10. Study of voltage reflection phenomenon when PWM inverter drives asynchronous motor with long wire cable
11. On compensation of wave reflections in transmission lines and applications to the overvoltage problem AC motor drives10.1109/TAC.2004.835405 ↗
12. Research on the effect of variable frequency power supply on the insulation performance of cables
13. Skibinski, G., Kerkman, R., Leggate, D., Pankau, J., and Schlegel, D. (1998, January 15–19). Reflected wave modeling techniques for PWM AC motor drives. Proceedings of the APEC’98 Thirteenth Annual Applied Power Electronics Conference and Exposition, Anaheim, CA, USA.
14. Methodology for Cable Modeling and Simulation for High-Frequency Phenomena Studies in PWM Motor Drives10.1109/TPEL.2007.915759 ↗
15. A recursive algorithm for calculating motor end voltages of long cables
16. Overvoltage modeling of motor end of a PWM drive system with long cable connection
17. Suresh, G., Toliyat, H.A., Rendussara, D.A., and Enjeti, P.N. (1997, January 27). Predicting the transient effects of PWM voltage waveform on the stator windings of random wound induction motors. In Proceedings of APEC 97—Applied Power Electronics Conference, Atlanta, GA, USA.
18. Analysis of steep-fronted voltage distribution and turn insulation failure in inverter-fed form-wound AC motor10.1109/28.720449 ↗
19. Wu, W., Jiang, Y., Liu, Y., Huang, M., He, Y., and Chung, S.-H. (2016, January 22–26). A new passive filter design method for overvoltage suppression and bearing currents mitigation in a long cable based PWM inverter-fed motor drive system. Proceedings of the 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), Hefei, China.
20. Liu, Y., Du, J., Zhao, X., Song, Y., and Wang, Y. (2023). High-Frequency Harmonic Suppression Strategy and Modified Notch Filter-Based Active Damping for Low-Inductance HPMSM. Appl. Sci., 13.10.3390/app132011309 ↗
21. Shojaee, M., and Azizi, S.M. (2023). Decentralized Robust Control of a Network of Inverter-Based Distributed Generation Systems. Appl. Sci., 13.10.3390/app13179517 ↗
22. An adaptive control strategy for integration of wind farm using a VSC-HVDC transmission system10.1016/j.rineng.2024.102359 ↗
23. Borodin, M.Y., Metelkov, V.P., Fedorova, S.V., and Permyakov, G.A. (2021, January 24–27). To the development of a model for the study of overvoltage in an asynchronous electric drive with a PWM frequency converter. Proceedings of the 2021 XVIII International Scientific Technical Conference Alternating Current Electric Drives (ACED), Ekaterinburg, Russia.10.1109/ACED50605.2021.9462309 ↗
24. Effects of converter pulses on the electrical insulation in low and medium voltage motors10.1109/MEI.2005.1412216 ↗
25. Relation between space charge accumulation and partial discharge activity in enameled wires under PWM-like voltage waveforms10.1109/TDEI.2004.1306718 ↗