适用多机系统分析的异步化同步发电机动态模型  

Dynamic Modeling of Asynchronized Generators for Multi-machine Power System Analysis

作　　者：赵霞[1] 周家启[1] 

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400044

出　　处：《中国电机工程学报》2008年第14期129-135,共7页Proceedings of the CSEE

基　　金：重庆大学自然科学青年基金;高电压与电工新技术教育部重点实验室访问学者项目

摘　　要：通过对异步化同步发电机(asynchronized generator,ASG)基本方程进行不同程度的简化,在转子dq轴系下导出适用于仿真分析多机环境下ASG动态行为的实用模型。该实用模型包含2阶恒定磁链模型、不计阻尼绕组的4阶模型和计及阻尼绕组的6阶模型。基于牛顿法和隐式梯形积分法设计实现了上述实用动态模型的时域仿真程序,并用单机无穷大系统和含2台异步化同步发电机的新英格兰混合10机39节点系统验证了模型的正确性及其对多机系统动态仿真的适应性。该文是进一步分析复杂多机系统中ASG动态行为以及应用ASG改善大电网动态性能等相关工作的研究基础。A simplified model of asynchronized generator （ASG） is presented for dynamic simulation of multi-machine system including ASGs. This model is developed in the individual d-q reference frame by making various degrees of approximations on the basic machine equations. With this dynamic model, ASG can be represented in various levels of detail, ranging from the 2-order constant flux linkage model to the higher order models with or without the representation of damper windings. The proposed model has been implemented in a time domain transient simulation program based on Newton method and implicit trapezoidal rule. A single-machine infinite bus system and the modified New England 10-machine 39-bus hybrid system including two ASGs are used to test the feasibility of the ASG model. This paper provides the fundamental work for future studies on ASGs＇ dynamic performance in a large scale power system.

关 键 词：电力系统 异步化同步发电机 动态模型 时域仿 真 多机系统 

分 类 号：TM74[电气工程—电力系统及自动化] TM30