基于厂用电负荷修正模型的火电机组进相能力仿真  

Unit leading-phase capability simulation based on modified auxiliary power model for thermal power plant

作　　者：汤奕[1] 戴玉臣 陈斌[1] 汪成根 

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]江苏省电力公司科学研究院,江苏南京211103

出　　处：《电力自动化设备》2016年第12期63-68,108,共7页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(51577030);国家自然科学基金国际合作与交流项目(51561145011);国家高技术研究发展计划(863计划)资助项目(2015AA050202);国家电网公司项目(XT71-15-045);江苏省电力公司科技项目(5210-EF14001P)~~

摘　　要：为了解决传统机组进相能力确定方法偏差较大、试验工况单一的问题,提出一种基于厂用电静态负荷模型的火电机组进相能力仿真方法。首先基于实际电厂运行数据,采用参数辨识方法提出厂用电静态负荷的修正模型;然后在PSD-BPA软件平台中搭建厂用电模型,仿真测试不同运行工况下,厂用电达到电压限值或机组达到静态稳定极限时的发电机进相深度。算例采用某百万机组2013年6月至2015年6月的实测数据,仿真计算了该机组的进相能力,并与进相试验实测数据进行了比较,结果表明了所提方法的有效性和合理性。Aiming at the large error and simple test condition of traditional method for determining the unit leading-phase capability,a method for simulating the unit leading-phase capability of thermal power plant is proposed based on the static auxiliary power model. A modified static auxiliary power model is put forward,which applies the method of parameter identification based on the actual operating data of power plant. The auxiliary power model is built on PSD-BPA software platform to simulate the unit leading-phase depth in different operational conditions when the voltage limit of auxiliary power or the static stability limit of unit is reached. The measured data of a 1 000 MW unit from June 2013 to June 2015 are applied to calculate its leading-phase capability. The simulative results are compared with the measured data of its leading-phase test,verifying the effectiveness and rationality of the proposed method.

关 键 词：火电机组 进相能力 厂用电负荷 静态负荷模型 仿真测试 

分 类 号：TM715[电气工程—电力系统及自动化]