某户内换流站启动回路通风设计方案比选  

Comparative Analysis of Ventilation Design Schemes for Startup Circuits of an Indoor Converter Station

作　　者：朱劲磊 罗新 欧嘉俊 ZHU Jinglei;LUO Xin;OU Jiajun

机构地区：[1]广东电网公司广州供电局,广东广州510030

出　　处：《重庆建筑》2024年第7期16-19,共4页Chongqing Architecture

基　　金：广东省重点领域研发计划资助“广东电网直流背靠背广州工程(大湾区中通道直流背靠背工程)户内启动回路通风散热研究”(项目编号:2019B111109001)。

摘　　要：启动回路作为换流站的重要组成部分,其通风方案关系到设备寿命、断电等电力安全问题。以广州市某户内换流站的启动回路作为研究对象,综合建筑结构、设备散热特点、经济性分析、能源耗费等多方面因素,对比分析采用自然通风与机械通风方式的适用性,并进行通风方案的设计,从而得到最佳通风方案。通过AutoCAD和Ansys ICEM两个软件合作建模,导入Ansys Fluent软件进行数值模拟,在软件内模拟了直流场内气流的温度场和速度场,以此充分验证了该项目所设计的通风方案实施的可行性。结果表明采用自然通风能充分满足散热需求,相比机械通风一年可节约222.8万度电,运行费用节约222.8万元,有较大的推广价值。The startup circuit,as a vital component of converter stations,necessitates a well-designed ventilation scheme that addresses power safety concerns such as equipment lifespan and power outages.Taking the startup circuit of an indoor converter station in Guangzhou as a research object,this study comprehensively considers factors including building structure,equipment heat dissipation characteristics,economic analysis,and energy consumption.It compares and analyzes the applicability of natural ventilation versus mechanical ventilation,designs ventilation schemes,and ultimately identifies the optimal solution.Leveraging the collaboration between AutoCAD and Ansys ICEM for modeling,the models are imported into Ansys Fluent for numerical simulation.This simulation replicates the temperature and velocity fields of airflow within the DC yard,thoroughly validating the feasibility of the proposed ventilation scheme.The results demonstrate that natural ventilation can fully meet the heat dissipation requirements,saving 2.228 million kWh of electricity annually compared to mechanical ventilation,equivalent to a cost reduction of RMB 2.228 million in operating expenses.This approach holds significant potential for wider application.

关 键 词：户内换流站 通风方案优选 数值模拟 

分 类 号：TD726[矿业工程—矿井通风与安全]