1、 分类号 毕毕 业业 设设 计(论计(论 文)文) 题 目 变电站直流系统分析与设计 并列英文题目 Substation Dc System Analysis And Design 系 部 电力工程系 专业 电气自动化技术 姓 名 班级 指导教师 职称 讲师 论文报告提交日期 2012 年 6 月 5 日 变电站直流系统分析与设计 - 2 - 摘要摘要 变电站直流电源系统是所内所有继电保护、自动化以变电站直流电源系统是所内所有继电保护、自动化以及二次控制回路、断路器分及二次控制回路、断路器分 合闸、事故照明等设备工作的电源,直流电源内部有蓄电池,能保证在交流失电状态合闸、事故照明等设备工作的电
2、源,直流电源内部有蓄电池,能保证在交流失电状态 下不间断连续供电。直流电源使用蓄电池进行储能,结构简单可靠,容易满足设备对下不间断连续供电。直流电源使用蓄电池进行储能,结构简单可靠,容易满足设备对 电源可靠性要求。电源可靠性要求。其设计内容主要包括其设计内容主要包括直流系统直流系统接线方式,系统电压确定,蓄电池容接线方式,系统电压确定,蓄电池容 量计算,直流充电模块选择,量计算,直流充电模块选择,upsups 不停电电源的选择,通信直流变换器的选择等。不停电电源的选择,通信直流变换器的选择等。 关键词:关键词: 直流系统、蓄电池组、不停电电源、充电装置直流系统、蓄电池组、不停电电源、充电装置
3、AbstractAbstract TheThe substation dc power system is substation dc power system is the wthe working power sorking power supplyupply of of relaying relaying protectionprotection, , automationautomation, , s secondary control circuitecondary control circuit, , switchswitching ing onon or or offoff c
4、circuit ircuit breaker breaker a and nd emergency lightingemergency lighting equipments equipments in the in the transformer substationtransformer substation. . DC DC power hapower has s internal battery and can guarantee continuous power supply when losing internal battery and can guarantee continu
5、ous power supply when losing elelectric state. Dc power uses storage battery ectric state. Dc power uses storage battery toto storstore e energy, the structure energy, the structure is simple, reliable and easy to meet for power equipment requirement of is simple, reliable and easy to meet for power
6、 equipment requirement of reliability.reliability. The design includeThe design includes s DC system DC system wiring,wiring, determindetermininging system voltagesystem voltage, the battery capacity calculation, the DC charging module selection,the battery capacity calculation, the DC charging module selection, choicchoice e ofof UPS andUPS and communication DCcommunication DC- -DC converter.DC converter. K Key wordsey words: DC systemDC system、 batter