赵楠. 发电机出口断路器跳闸对船舶电力系统稳定性的影响[J]. 中国舰船研究, 2009, 4(2): 59-64. DOI: 10.3969/j.issn.1673-3185.2009.02.013
引用本文: 赵楠. 发电机出口断路器跳闸对船舶电力系统稳定性的影响[J]. 中国舰船研究, 2009, 4(2): 59-64. DOI: 10.3969/j.issn.1673-3185.2009.02.013
Zhao Nan. Impacts of Generator Breakers Trip on the Stability of Ship Power System[J]. Chinese Journal of Ship Research, 2009, 4(2): 59-64. DOI: 10.3969/j.issn.1673-3185.2009.02.013
Citation: Zhao Nan. Impacts of Generator Breakers Trip on the Stability of Ship Power System[J]. Chinese Journal of Ship Research, 2009, 4(2): 59-64. DOI: 10.3969/j.issn.1673-3185.2009.02.013

发电机出口断路器跳闸对船舶电力系统稳定性的影响

Impacts of Generator Breakers Trip on the Stability of Ship Power System

  • 摘要: 船舶电力系统在故障发生时,发电机出口断路器跳闸对船舶电力系统是一个较大的扰动,网络中不同位置的断路器动作都会对系统稳定性造成不同的影响。数字仿真方法是研究此类动态问题的有效手段。本文利用PSCAD/EMTDC仿真软件平台,对某型船舶电力系统发电机转速及励磁自动凋节装置进行了模型及参数仿真验证,并对自定义静态负荷模型以及采用铭牌参数建模的异步电动机模型进行了仿真分析,在此基础上通过时域数字动态仿真的方法,针对某型电力系统的网络结构,以典型的系统统运行方式为例,分析了发电机出口断路器分断对电力系统稳定性的影响,并进一步提出为保证系统稳定性,系统运行时应当采用的相关策略。

     

    Abstract: As the malfunction happens in the Ship Power System (SPS), tripping operation itself is a large disturbance to the system, which may causes undesired system instability if it is not operated at appropriate place and time. This thesis is devoted to detailed digital simulation of one defined SPS to disclose effects of breaker tripping operation to the system. Modeling of the generator, cables, transformer and load are discussed using PSCAD/EMTDC. Since the detail parameters is unavailable, the exciter and governor model of the generator are tested with typical parameters, which is verified to meet the technical requirement of SPS defined by r elevant military standards. Motor model using nominal parameters rather than detail electric parameters is also testified to be accurate. Based on the model established, the effects of generator trip to SPS stability i s studied with typical system conditions. Load shedding measure is proposed and verified by detailed digital simulation, which is proved to be effective.

     

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