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所在平台: Udemy |
课程主页: https://www.udemy.com/course/transient-stability-study-by-etap/
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**课程名称：** ETAP 瞬态稳定性研究 **课程概述：** 本课程探讨电力系统运行的稳定性，重点关注发电机输出功率与负荷之间的功率平衡。电力系统中的负荷容量和位置会随时变化，因此发电机需要通过调速器和励磁系统进行调整，以适应这些负荷变化。如果无法维持功率平衡，将导致系统效率下降和性能恶化。 电力系统由连接到网络的发电单元组成，为负荷供电。大型互联电力系统通过复杂的网络将电力输送到用户。互联系统的主要目的是保证电力供应的连续性和可用性，以满足日益增长的电力需求。然而，随着系统规模的扩大，扰动可能导致系统性能下降。 扰动引起的电磁机械振荡，如果不能有效衰减，可能导致系统失稳，产生范围更广的事故，甚至导致大范围停电。近年来，由于电力基础设施相对老旧，难以应对不断增长的电力需求和远程输电的挑战，许多电力系统运行接近稳定极限。当负荷需求超过系统最大发电和输电能力时，若不采取改进措施，电压会变得不稳定，甚至引发系统崩溃。 **核心内容：** * 電力系统稳定性的基本概念 * 发电机输出功率与负荷变化的关系 * 调速器和励磁系统在维持稳定性中的作用 * 互联电力系统的特点和挑战 * 电磁机械振荡及其对系统稳定性的影响 * 电力系统接近稳定极限的运行状况 * 电压不稳定和系统崩溃的风险
The power balance between the load and the generator output power is one measure of the power system operation stability.In power system operation, load always changes in the capacity and location at any time, and this mean that the system requires each plant to adjust the output power through the control of the governor and excitation to follow the changes in the system load.If this is not done, it will decrease the power balance and the efficiency of the system causing the system performance deterioratedElectric power system generally consists of generating units connected to the network to serve the load.Electric power systems that have a lot of machines are usually distributepower to the load through the interconnected system.The main purpose of the interconnected system is to maintain the continuity and the availability for the increasing of the needs of electric power.The growing of the power system can result the poor performance when the system is disturbed.One effect of the interference on the system is the electromechanical oscillations, if not be attenuated can cause disruption of the system and turn out from the area of stability, resulting a worse effect as the total blackout [1, 2].In recent years, power systems are operated almost at the stability limit due to the use of out of date of the power system infrastructure construction compared to the increase in demand of electric power and the long-distance transmission system.If the load demand beyond the limits of the maximum power (active power and reactive power) that can be generated and transmitted from the source to the load area, and no improvement action is taken, the voltage load area will become unstable and collapse may occur.
