2×25mw水电站电气部分课程设计_精品.docVIP

本科课程设计 题 目 2×25MW水电站电气部分设计 学 院 专 业 电气工程及其自动化 学生姓名 学 号 年级 指导教师  2×25MW水电站电气部分设计 学生： 指导老师： 摘要 本次设计是水电厂电气部分设计。该水电站的总装机容量为2×25=50 MW。高压侧为110Kv，一回出线与系统相连，一回出线与装机100MW的电站相连，其最大输送功率为50MW，该电厂的厂用电率为0.2%。根据所给出的原始资料拟定三种电气主接线方案，然后对这三种方案进行可靠性、经济性和灵活性比较后，保留两种较合理的方案，最后通过定量的技术经济比较确定最终的电气主接线方案。在对系统各种可能发生的短路故障分析计算的基础上，进行了电气设备和导体的选择校验设计。在对发电厂一次系统分析的基础上，对发电厂的配电装置布置、防雷保护、继电保护和自动装置、同期系统、监控系统均做了初步简单的设计。毕业设计的过程是一次将理论与实际相结合的初步过程，起到学以致用，巩固和加深对电气工程及其自动化专业的理解，树立工程设计的观念，提高了电力系统设计的能力的作用。 关键字：电气主接线，短路电流计算，设备选型，配电装置布置，防雷保护，继电保护和自动装置，同期系统，监控系统。  The electrical design of 2 × 25MW hydropower station Student: Tutor: ABSTRACT The design is part of the hydropower plant electrical design. The total installed capacity of hydropower stations of 2 × 25 = 50 MW. High side is for 110 Kv, one is connected to the system,another is connected to an installed capacity of 100 MW power station. The stations largest power transmission for 50 MW, the power plants electricity plant was 0.2 percent. According to the raw data presented by the development of three main electric cable programmes, and these three options for reliability, economy and flexibility of comparison, the two retain a more reasonable proposal, the final through quantitative comparison of the technical and economic determine the final The main electric cable programme. In the system all the possible short-circuit fault analysis calculated on the basis of a conductor of electrical equipment and checking the choice of design. In the first systematic analysis of power plants on the basis of the distribution of power plant equipment layout, mine protection, protection and automatic devices, earlier system, monitoring system have done a preliminary simple design. The graduation is a process designed to combine theory an