Simulation Study And Implementation Of Ventilation And Heat Transfer In Indoor Substation

With the rapid development of China's electric power industry and theurbanization process, more and more urban transformer substationsin city network establish in the city center area in order to reduce power transmission losses. However, these substations require not only without the noise or environmental pollution, but also meeting the electricity needs of the surrounding residents, which are often in a densely populated area. Therefore, from the area of requirements and environmental impact point of view, the substation in city network is usually designed to be the whole indoor substation.The difference between traditional and indoor substation is that indoor substations will placeall electrical equipmentindoors. The transformer releasesso much heat and the transformer room is not ideal for heat exchange. Practice has proved that the transformer room ventilation heat exchanger has a direct impact on the safety and stable operation of the transformer. Therefore, how to put the heat generated by the transformer in operation through the substation'ventilation design discharged in time, is the key to ensure security and stability for indoor substation. This paperstudied the ventilation and heat dissipationof indoor substation and proposedthe design of indoor substation ventilation heat simulation analysis software. Specific studies are mainly the following several aspects.Firstly, by reading a lot of existing literatures, study the research status of related technologies, including substation ventilation heat exchanger, flow visualization techniques and simulation analysis software of the flow field.Secondly, designed and implemented indoor substation ventilation and heat dissipation simulation analysis system. The system consists of the following four functional parts:(1) Two-dimensional scene modeling. The system used WPF technology to achieve 2D entities substation modeling scene and pickup, pan, zoom, rotate, Undo and Redo functions, as well as properties information setting for each model, and save it as a file.(2) Calculation of the flow field scene established by users.(3) Flow Visualization. Use particle system to implement flow field data calculated for visualization.(4) Three-dimensional scene modeling. The system achieved modeling the substation three-dimensional equipmentand called the models to construct the corresponding three-dimensional scene.Finally, the system acceptedand tested by two-dimensional and three-dimensional scene modeling simulation of flow field within a practical indoor transformer substation.