供电系统可靠性论文兴隆庄煤矿提高供电系统可靠性的研究与设计.docVIP

供电系统可靠性论文：兴隆庄煤矿提高供电系统可靠性的研究与设计 【中文摘要】供电系统可靠性直接体现供电系统负载的供电能力,加强供电可靠性的技术管理工作,不断提高可靠性指标是供电系统永恒的主题,是系统安全经济运行的重要保证。本文主要对兖州煤业股份有限公司兴隆庄煤矿35KV变电所供电系统安全可靠性的升级改造进行理论研究、设计和实验分析。首先,通过查阅大量的资料,系统的分析兖州煤业股份有限公司兴隆庄煤矿35KV变电所供电系统的基本结构和特点,以及和国内外供电系统领域相比存在的优缺点,提出该矿供电系统发展的方向和当前研究的热点,进一步明确该矿供电系统设计改造的意义。其次,重点介绍供电系统各次谐波的现状和进行哪些必要的分析和补偿,实现达到电压平稳、滤除系统谐波、提高功率因数的效果。最后,对此次设计的系统进行实际的运行调试,获得相应的实验结果,并对结果进行分析对比,以便今后进一步改进系统的升级设计。本文针对兴隆庄煤矿供电系统中出现的起动无功冲击大,经测试6kV母线最大无功冲击为15Mvar；平均功率因数低,投上并补后功率因数为0.8左右；谐波电流、电压畸变率超限等问题,根据兴隆庄煤矿的实际情况,制定出了针对性的解决方法：针对3、5、7、11次偕波进行综合治理,并分2段布置。在一段母线上安装滤波装置补偿容量为9Mvar；在二段母线上安装滤波装置补偿容量为3Mvar；通过滤波装置实现补偿和滤波作用,通过晶闸管阀组及全数字控制系统来控制相控电抗器的输出容量实现抑制电压波动和提高功率因数。成功的治理了系统谐波,保证了功率因数在0.95以上,有效提高了供电系统的稳定性、可靠性。 【英文摘要】Power system reliability direct embodiment of the power supply system, strengthen the power supply load of technical management of the power supply reliability, and constantly improve the reliability index is the eternal theme, power supply system is the system of the important guarantee the safe and economic operation.This paper mainly company limited by shares of yanzhou coal joint-stock company 35KV substation xinglongzhuang coal mine safety and reliability of power supply system upgrading transformation on the theoretical and experimental analysis.First of all, access to large amounts of material, system analysis yanzhou coal Co., LTD 35KV substation power supply system in xinglongzhuang coal mine the basic structure and characteristics of the power supply system at home and abroad, and compared with the advantages and disadvantages of existing fields, and puts forward the developing direction of mine power supply system and the current research hot spot and further confirm the power supply system design and transformation nephrites significance.Secondly, introduced the every harmonic current power supply system and what the necessary analysis and compensation, achieve the smooth, to filter system voltage harmonic, improving power factor effect.Finally, the system for the design t