摘 要
在电力系统中，继电保护作为确保电网安全稳定运行的第一道防线，其整定计算的准确性和优化水平直接关系到故障的快速切除与系统的可靠供电。随着电网规模的不断扩大和结构的日益复杂，继电保护整定计算面临诸多挑战，亟需通过优化算法和技术手段提升整定计算的效率和精度。本文阐述了继电保护整定计算的基本原理和重要性。继电保护整定计算是指根据电力系统的运行方式和保护配置，通过计算确定各保护装置的定值，以确保在故障发生时能够迅速、准确地切除故障元件，防止故障扩大，保障电网的安全稳定运行。整定计算的准确性直接影响到保护装置的动作性能和系统的可靠性。本文分析了当前继电保护整定计算中存在的问题和难点。随着电网规模的扩大，整定计算涉及的变量和约束条件急剧增加，传统的人工整定方法已难以满足要求。同时，电网运行方式的变化、分布式电源接入、新能源并网等因素也给整定计算带来了新的挑战。针对上述问题，本文重点探讨了继电保护整定计算的优化方法。一方面，通过引入先进的优化算法，如遗传算法、粒子群算法、模拟退火算法等，对整定计算过程进行优化，提高计算效率和精度。另一方面，结合电力系统的实际运行情况，对整定计算模型进行改进和完善，充分考虑各种因素对整定结果的影响，确保整定计算的准确性和可靠性。本文还介绍了继电保护整定计算在实际应用中的典型案例和效果。通过实际案例的分析，验证了优化算法在提升整定计算效率和精度方面的有效性，为电力系统继电保护整定计算的优化提供了有力支持。本文总结了继电保护整定计算与优化研究的重要性和意义，并展望了未来的研究方向和发展趋势。随着智能电网建设的深入推进和技术的不断进步，继电保护整定计算与优化将在保障电网安全稳定运行方面发挥更加重要的作用。
关键词：电力系统 继电保护 整定计算
Abstract
In the power system, relay protection is the first line of defense to ensure the safe and stable operation of the power grid, and the accuracy and optimization level of its setting calculation are directly related to the rapid removal of faults and the reliable power supply of the system. With the continuous expansion of power grid scale and increasingly complex structure, the calculation of relay protection setting faces many challenges, and it is urgent to improve the efficiency and accuracy of the calculation by optimizing algorithms and technical means. This paper describes the basic principle and importance of setting calculation for relay protection. The relay protection setting meter refers to the calculation to determine the fixed value of each protection device according to the operation mode and protection configuration of the power system, so as to ensure that the fault components can be quickly and accurately removed when the fault occurs, prevent the expansion of the fault, and ensure the safe and stable operation of the power grid. The accuracy of the setting calculation directly affects the performance of the protection device and the reliability of the system. This paper analyzes the problems and difficulties in the current calculation of relay protection setting. With the expansion of power grid scale, the variables and constraints involved in setting calculation increase sharply, and the traditional manual setting method can not meet the requirements. At the same time, the change of power grid operation mode, distributed power supply access, new energy grid connection and other factors also bring new challenges to the tuning calculation. In view of the above problems, this paper focuses on the optimization method of relay protection setting calculation. On the one hand, by introducing advanced optimization algorithms, such as genetic algorithm, particle swarm optimization, simulated annealing algorithm, etc., the tuning calculation process is optimized to improve the calculation efficiency and accuracy. On the other hand, combined with the actual operation of the power system, the setting calculation model is improved and perfected, and the influence of various factors on the setting results is fully considered to ensure the accuracy and reliability of the setting calculation. This paper also introduces the typical cases and effects of relay protection setting calculation in practical application. Through the analysis of practical cases, the effectiveness of the optimization algorithm in improving the efficiency and accuracy of the setting calculation is verified, which provides a strong support for the optimization of the setting calculation of the power system relay protection. This paper summarizes the importance and significance of the research on setting calculation and optimization of relay protection, and looks forward to the future research direction and development trend. With the deepening of the construction of smart grid and the continuous progress of technology, the calculation and optimization of relay protection will play a more important role in ensuring the safe and stable operation of power grid.
Keyword:Electric power system Relay protection Setting calculation
目 录
1引言 1
2相关技术与理论基础 1
2.1电力系统概述 1
2.2继电保护原理 2
2.3整定计算方法现状 2
3继电保护整定计算 3
3.1整定计算的基本原理 3
3.2整定计算参数的确定 4
3.3整定计算软件工具 4
3.4计算方法的科学性与实用性分析 5
4继电保护整定计算优化 6
4.1优化方法的分类与选择 6
4.2优化算法的应用 6
4.3优化效果的评估 7
4.4优化方法的有效性与经济性分析 7
5结论 8
参考文献 10
致谢 11
