Research on the Optimization of Spring System Based on Virtual Prototyping

Abstract:

The energy of DC arc influences the electrical life and reliability of relay’s contacts seriously. The study on shortening the arc duration by increasing the breaking velocity of contacts is important for reducing the contacts erosion and improving the contacts life. Firstly, it was indicated that increasing the breaking velocity is effective for reducing the arc time of this differential electromagnetic relay through life test, especially the breaking velocity of N.O. contacts. Then a new optimal model of spring system suitable for this relay was analyzed in increasing the breaking velocity. Secondly, electromagnetic model, mechanical model, dynamic simulation model, vibration model and thermal model of the optimal relay were built based on virtual prototyping. Finally, the optimal design was verified on the virtual prototyping platform and the results shows that the breaking velocity of N.O. contacts increases more than 100%, which provides the optimal scheme of improving the relay’s electrical life.

• Periodical: Applied Mechanics and Materials (Volume 741)
• Pages: 241-247
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.741.241
• Online since: March 2015
• Authors: Hui Min Liang*, Hai Dan Yu, Hao Yu, Shu Xian An, Han Zhao
• Keywords: Breaking Velocity, DC Arc, Optimal Design, Virtual Prototyping

References

[1] Liang Huimin, Ma Guangcheng, Cai Ling, Xie Yong, Xie Guoqiang. Research on the relationship between contact breakaway initial velocity and arc duration. Proceedings of the Forty-Ninth IEEE Holm Conference, 2003: 204-210.

DOI: 10.1109/holm.2003.1246498

[2] JEMMA N B. Break arc duration and contact erosion in automotive application. IEEE Trans on C P M T, Part A, 1996, 19(1): 82 - 86.

[3] Li Zhenbiao, Zhang Huan, Zheng Bicheng. Effect of voltage and contact materials on breaking duration of relays. VOLTAGE APPARATUS, 2008(15): 1-3, 28.

[4] J. Swingler, A. Suption and J. McBride. The Evolution of Contact Erosion during an Opening Operation at 42 V. 2005 IEEE Holm Conf. Proc., Chicago, IL, pp.346-351.

[5] Liang Huimin, Deng Jie, Zhai Guofu. Robustness optimization of electromagnetic system parameter design in space relays. VOLTAGE APPARATUS, 2012, 14: 1-5.

[6] Wang Qiya, Zhai Guofu, Cheng Xianke, Chen Zhijun. Key adjusted parameters and optimum method of electromagnetic relay based on orthogonal experimental design. Proceedings of the CSEE, 2009, 10: 53-58.

[7] G. Witter and Z.K. Chen. A comparison for the effects of opening speed, contact gap and material type on electrical erosion for relays interrupting inductive automotive loads. ICEC 2006, June, Sendai, Japan.

[8] Chen Wei, Zhang Guogang, Ke Chunjun. Numeric analysis of the influence of opening speed on arc erosion of contact. VOLTAGE APPARATUS, 2009, 09: 16-20.

[9] Ye Xinquan, Zhao Rongxiang, Wu Maogang. Study on breaking action characteristics of moulded case circuit-breaker contact. Journal of Zhejiang University( Engineering Science), 2006, 03: 448-453.

[10] Zheng Yun, Lin Chuan. The breaking speed of circuit breaker calculation based on ADAMS. Electrical technology, 2014, 02: 97-100.