PST型变电站综合自动化系统测试仪的研制.docVIP

PST型变电站综合自动化系统测试仪的研制 摘要：PST型变电站综合自动化系统测试仪主要由人机接口模块、主控模块和功率源模块组成。人机接口软件利用LabVIEW虚拟仪器编程语言作为开发平台,主控模块采用TI公司的TMS320LF2407为主处理器，功率源模块采用美国模拟器件公司的新一代高性能600MHz处理器Blackfin533, 每周波拟合的波形点数高达30000点，波形保真度高，输出无需低通滤波器，从而具有很好的暂态特性、相频特性、幅频特性，能实现变电站综合自动化系统的同期功能测试、遥测精度校验以及系统性能指标测试等功能。 关键词：变电站综合自动化系统；测试仪；LabVIEW；DSP；GPS；USB； Research and development of test equipment typed PST for substation integrative automation system Abstract: The PST-type test equipment consists of man-machine interface module, main control module and precise power sourse module. The software of man-machine interface adopts LABVIEW Programming language as developing platform, main control module chooses TM5329LF2407 developed by TI Company as main processor, precise power sourse module uses blackfin533, a latest version,highly functional processor with a frequency of 600Mhz produced by an US equipment company. The dots which are composed in each cycle are up to 30,000.High fidelity is gueranteed, and a wavefilter is not required for the output,as a result, this test equipment has some remarkable characteristics,such as transient characteristic, phase frequency characteristic,and amplitude frequency characteristic.Further more,a multi-functional target can be achieved with the use of this equipment,such as, the test of the synchronism function of the substation integrative automation system, the calibration of the data acquisition and tests of the performance index of the substation integrative automation system. Key words: substation integrative automation system; test equipment ; LabVIEW ;DSP ;GPS ;USB ; 前言 变电站综合自动化系统（以下简称综自系统）已得到广泛应用，其检验工作也逐步走向规范化，但目前进行综自系统检验通常需要配置诸多仪器，例如，标准功率源、继电保护试验装置、毫秒表等，有些指标还没有合适的仪器测试，工作起来十分不便，且造成仪器资源浪费。因此，笔者研制了一种针对于综自系统检验的仪器（以下简称综自系统测试仪），使用该仪器就基本能满足综自系统检验的需要，从而提高检验效率和质量，保证电网安全稳定运行[1]。 随着DSP性能的日新月异、高速高性能DA技术、运放技术的发展以及NI公司虚拟仪器LabVIEW的推广，笔者运用这些当今先进技术首次提出海量波形捏合技术、暂态功放技术，配合NI的LabVIEW使得在电测领域实现“所见既所得”成为现实。 仪器功能 根据综自系统相关的检验规程，所研制的PST型综自系统测试仪主要实现同期功能测试、遥测精度校验、系统性能指标（如SOE分辨率、遥测响应时间、遥信响应时间等）测试等功能，