期刊文献+

计及水力系统详细模型的多机系统暂态稳定计算 被引量:3

Transient Stability Computation of Multi-unit System Considering Detailed Models of Hydraulic System
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摘要 对水力系统模型的简化,是制约电力系统暂态过程仿真质量提高的主要原因之一.建立了用于电力系统暂态稳定分析的复杂水力系统不同形式的数学模型,包括引水系统刚性水击模型和弹性水击模型以及水轮机线性化模型和非线性模型.通过对具有复杂水力系统的多机系统在大扰动下的过渡过程进行计算,分析了引水系统和水轮机不同模型对暂态稳定计算结果的影响.结果表明:水力系统的不同模型对多机系统暂态稳定计算的初始阶段影响不大;刚性水击模型与弹性水击模型下的变化曲线较接近;非线性水轮机模型与线性水轮机模型下的变化曲线在暂态过程中后期差别较大;简化模型过于简单,计算结果误差较大.  The simplification in hydraulic system models is one of the main factors restricting the improvement of transient simulation of power systems.Different models of complex hydraulic system are given in this paper for power system transient stability analysis, including the rigid water-hammer model, elastic water-hammer model of conduit system and the linearized or nonlinear model of hydroturbine. Dynamic process computation of multi-unit system with complex conduit system is carried out with a disturbance. The effect of different conduit system and hydroturbine models in transient stability is compared and analyzed.
出处 《郑州大学学报(工学版)》 CAS 2004年第4期90-93,共4页 Journal of Zhengzhou University(Engineering Science)
关键词 水力系统 数学模型 多机系统 暂态稳定 电力系统 水轮机 hydraulic system model multi-unit system transient stability
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参考文献3

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同被引文献13

  • 1高慧敏,刘宪林,徐政.水轮机详细模型对电力系统暂态稳定分析结果的影响[J].电网技术,2005,29(2):5-8. 被引量:42
  • 2王海风,李乃湖,陈珩,唐国庆.静止无功补偿器阻尼电力系统振荡(上)──理论分析[J].中国电机工程学报,1996,16(3):190-195. 被引量:40
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