220kv電網繼電保護系統設計

電氣工程論文編號:DQ007    論文字數:12686,頁數:31

目 錄
摘要………………………………………………………….............…………………. .  I
Abstract……………………………………………............................…..…II
1 前言………………………………………….............……………………………….1
    1.1  電網的特點………...............…………………………………………………2
1.2  設計總原則.……………………………….....……………………………….....2
1.3  保護裝置的配置情況…………………………………........…………………………. .2
2  運行方式………………………………………………………..........................3
 2.1  運行方式的選擇………………………………………………………...............3
 2.2  系統中個主要元件的參數……………………………………………………………………3
    2.3  變壓器中性點接地原則………………..……………………..…………………7
3 短路電流計算……………………………………………………………..….……………………..9
4  保護的整定計算…………………...……………………………………………………….……13
 4.1  距離保護…………………………….………………………………………………………13
 4.2  相差高頻保護………………………………………….……………………………………15
    4.3  整定校驗……………………………………………………….……………………………16
4.4  CSL101B型高壓輸電線路保護裝置整定計算…………………...…………………………17
 4.5  距離保護計算舉例………………………………………………………………………….19
 4.6  相差高頻保護整定計算舉例……………………………………………………………….20
5  自動合閘………………………………………………………………...………………………...23
 5.1  自動合閘的基本概述……………………………....……………..…………………………23
6  總結……………………………………………………..………………………………………….26
致謝………………………………………………...…………………………………………………...27
參考文獻…………………………………………………………………..…………………………...28
附錄……………………………………………………...……………………………………………...29

摘  要

 中國的電力工業作為國家最重要的能源工業，一直處于優先發展的地位，電力企業的發展也是令人矚目的。電力系統的飛速發展對繼電保護不斷提出新的要求，也使得繼電保護得以飛速的發展。繼電保護是指研究電力系統故障和危及安全運行的異常工況，以探討其對策的反事故自動化措施。因在其發展過程中曾主要用有觸點的繼電器來保護電力系統及其元件（發電機、變壓器、輸電線路、母線等）使之免遭損害，所以沿稱繼電保護。
 本設計對220KV電網的繼電保護和整定做了計算，根據本電網的特點和運行要求，在滿足繼電保護“速動性、選擇性、靈敏性、可靠性”要求的前提下，對運行方式、短路電流、各類保護、自動合閘的整定計算最終求得最佳方案。
 
關鍵詞：220kv  繼電保護  整定計算 

Abstract
China's power industry, as the country's most important energy industry, has been in the priority development status, Power for the development of enterprises is also eye-catching. Power system for the rapid development of protection have made new demands, which will enable the relay to rapid development.Protection is an anti-accident automational measure which is used to seek the countermeasure by means of studying the breakdown of power system, and the abnormal conditions which endanger operation safty. During its development,it is used relay to protect the power system and its components (generators, transformers, transmission lines, bus, etc.)in order to get it out of damage. So we call it protection. This design calculates the protection and adjustment of 220KV power grid .According to the characteristics and operation requests of the power grid, under the premise of protection requirement, which is "the liquid, the selectivity, sensitivity, reliability", we can find the best program for setting of operation mode, the short circuit current, the types of protection and the automatic reclosing.

Key Words：220kv  Protection  Setting