变电站直流系统设计(3).docVIP

变电站直流系统设计 PAGE PAGE 45 摘 要： 变电站直流 HYPERLINK /PowerSystem.htm 电源系统是给信号设备、保护、自动装置、事故照明、应急电源及断路器分、合闸操作提供直流电源的电源设备。直流系统是一个独立的电源，它不受发电机、厂用电及系统运行方式的影响，并在外部交流电中断的情况下，保证由后备电源—蓄电池继续提供直流电源的重要设备。而本文介绍了220KV变电站直流系统接线方式，阐述了蓄电池的分类和影响直流系统额定电压和蓄电池容量选择的主要因素以及计算，介绍了新型的充电装置性能及其选择和UPS不停电电源的选择。简单阐述了通信直流变换器，最后确定了变电站直流系统设计的方案。 关键词：直流系统设计;变电站；蓄电池；UPS电源;智能型高频开关充电装置。 Abstract: Substation DC power supply system is to signal equipment, protection, automatic equipment, emergency lighting, emergency power supply and circuit breaker opening and closing operation of the power supply to provide DC power. DC system is an independent power supply, it is not generators, auxiliary power and system operation mode of influence, and in the external AC power interruption, assurance back-up power - battery provides DC power to vital equipment. The article describes the 220KV substation DC system wiring, described the classification and the impact of DC battery system rated voltage and battery capacity is the main factor and the calculation of the new type of rechargeable device performance and the selection and choice of UPS uninterruptible power supply. Simple set of communication DC-DC converter, DC to finalize the substation design program. Key words: DC Power System Design; substation; battery; UPS power supply; intelligent charging device high frequency switching.  目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc264201532 第1章 变电站直流系统功能、重要性论述 PAGEREF _Toc264201532 \h 5 HYPERLINK \l _Toc264201533 1.1变电站直流系统 PAGEREF _Toc264201533 \h 5 HYPERLINK \l _Toc264201534 1.2变电站直流系统的重要性 PAGEREF _Toc264201534 \h 5 HYPERLINK \l _Toc264201535 第2章 直流系统接线 PAGEREF _Toc264201535 \h 7 HYPERLINK \l _Toc264201536 2.1 直流系统电源配置 PAGEREF _Toc264201536 \h 7 HYPERLINK \l _Toc264201537 2.2 直流母线接线方式 PAGEREF _Toc264201537 \h 8 HYPERLINK \l _Toc264201538 2.3 直流馈线网络 PAGEREF _Toc264201538 \h 9 HYPERLINK \l _Toc264201539 第3章 直流系统工作电压的确定 PAGEREF _Toc264201539 \h 11 HYPERLINK \l _Toc264201540 第4章 蓄电池的选择及容量计算 PA