电力系统运行状态下抗高压脉冲干扰评估

Assessing immunity of power systems to effects of high-voltage pulses with power on

1.
Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow 125412, Russia
2.
State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China

摘要: 在系统运行与不运行状态下，线路绝缘子因高压脉冲而产生闪络和损伤现象的研究结果显示，脉冲干扰和系统工作电压的共同作用将对电力系统带来灾难性的威胁。而在电力系统中，高压变压器是非常重要并且昂贵的设备。本文给出了一些针对变压器在脉冲干扰和系统工作电压共同作用时的试验方法。
- 脉冲干扰 /
- 工作电压 /
- 联合作用 /
- 高压变压器
Abstract: The results of investigation of flashovers and damages of power line insulators due to high voltage pulses with power on and power off have shown that joint action of a pulse disturbance and operating voltage of a power line can lead to catastrophic phenomena in power supply systems. High-voltage transformers are much more important and expensive elements of such systems. A set of ways of transformers tests to joint action of pulse disturbance and operating voltage of a high-voltage power line is presented in this article.
- pulse disturbance /
- operating voltage /
- joint action /
- high-voltage transformers

Figure 1. General view of the experimental setup

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Figure 2. Block-diagram of the high-voltage pulse simulator

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Figure 3. Pulse generator based on exploding wires

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Figure 4. Waveform of the generated pulse

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Figure 5. Simulator of power line operating voltage

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Figure 6. Air-core transformer

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Figure 7. Current (I) in primary winding and the open-circuit voltage (U) in secondary winding of the air-core transformer

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Figure 8. Currents in windings of the transformer at short circuit

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Figure 9. Resistive high-voltage divider

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Figure 10. Capacity divider

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Figure 11. Transformers test scheme based on the equipment developed for insulators test

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Figure 12. Scheme of the transformer test by means of a diesel-generator and three high-voltage generators

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Figure 13. Scheme of the transformer test by means of a diesel-generator and influencing loop circuit

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[1]	Kozlov A, Louzganov S, Parfenov Y, et al. Research of power line insulators flashover at joint effect of high voltage disturbance and line operating voltage[C]//Proc 16th Int Zurich Symp EMC. 2005: 385-388.
[2]	Radasky W A. High power electromagnetic (HPEM) threats on smart grid[J]. IEEE Electromagnetic Compatibility Magazine, 2012, 1(2): 107-110. doi: 10.1109/MEMC.2012.6244984
[3]	Parfenov Y V, Zdoukhov L N, Shurupov A V, et al. Research of flashover of power line insulators due to high-voltage pulses with power on and power off[J]. IEEE Trans Electromagnetic Compatibility, 2013, 55 (3): 467-474. doi: 10.1109/TEMC.2012.2236094
[4]	North American Electric Corporation. High-impact, low-frequency event risk to the North American bulk power system[R/OL]. www.nerc.com.

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