摘要
为了提高PSCAD电磁暂态模型的建立效率,本文提出了将PSASP机电暂态数据文件自动转换为PSCAD电磁暂态模型的方法。首先详细分析了两种软件中关键模型的差异,针对发电机控制系统模型的不对应问题,在PSCAD中采用隐士梯形积分法建立了自定义模型并对比验证了模型的有效性。然后基于自定义建立的模型库给出了模型自动转换的方法:先读取基础元件参数和拓扑信息,按照不同方案名将数据分组,将元件以变电站或发电厂为模块对网络进行模块化,采用基于力导向的图形可视化布局方法实现模型的自动布局和拓扑连接。最后通过工程实际应用验证了转换方法的准确性和实用性。
In order to improve the efficiency of modeling electromagnetic transient in PSCAD, a model con-version method from PSASP to PSCAD based on user-defined models is proposed. After analyzing the difference of key components between PSASP and PSCAD, the user-defined models are created based on hermit trapezoidal integral method and its validity is verified. And the model conversion method based on user-defined model library is described in detail: firstly, the parameter and top-ological information of basic components are extract;secondly, classify these information and pa-rameters according to their scheme, and the power network is modularized in sub-modules of substations and power stations;thirdly, the auto layout and topological connection of all modules and components are completed through Force-Directed-Placement algorithm;finally, the accuracy and practical of this method are validated in the fault analysis of practical project.
基金
国家电网公司总部科技项目:电力系统电力电子化运行控制关键技术研究.
