Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于用户广义耐受曲线的供电可靠性综合评估方法研究

来源:电工电气发布时间:2021-01-23 16:23 浏览次数:642

基于用户广义耐受曲线的供电可靠性综合评估方法研究

夏杰
(国网山东省电力公司潍坊供电公司,山东 潍坊 261000)
 
摘 要:随着用电设备精密性的不断提高,电压暂降对用户正常用电的影响越来越显著,传统供电可靠性评估方法的不足之处也逐渐显现。通过构造用户广义耐受曲线,并将电压暂降能量损失函数及等效停电时间相结合,提出一种供电可靠性的综合评估方法。对整个评估流程进行了阐述,并进行了仿真分析,结果表明,该方法能够较为合理地将电压暂降的影响纳入可靠性分析,有利于对供电可靠性作出更为完善的评估。
    关键词:供电可靠性;综合评估;耐受曲线;停电时间;修正指标
    中图分类号:TM711     文献标识码:A     文章编号:1007-3175(2021)01-0024-06
 
Comprehensive Evaluation Method of Power Supply Reliability Under
Voltage Sag Based on User's Generalized Withstand Curve
 
XIA Jie
(State Grid Shandong Electric Power Company Weifang Power Supply Company, Weifang 261000, China)
 
    Abstract: With the continuous improvement of the precision of electrical equipment, the impact of voltage sag on the normal power consumptionof users become more and more significant, and the shortcomings of traditional power supply reliability evaluation methods aregradually emerged. In this paper, a comprehensive evaluation method of power supply reliability is proposed, it constructing the users generalizedwithstand curve and combining the energy loss function with the equivalent outage time of voltage sag. The evaluation process wasexplained, and simulation analysis was carried out. And the simulation results show that this method can reasonably bring the influence ofvoltage sag into the reliability analysis, which is conducive to a more perfect evaluation of power supply reliability.
    Key words: power supply reliability; comprehensive evaluation; withstand curve; outage time; correction index
 
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