摘要
WB智能电量变送器分为单相和三相两类。该变送器由隔离传感测量、DSP数据处理和通信控制3部分组成,采用单电源或无源工作和DIN卡装式模块化结构。由于采用了模拟信号隔离、非过零交流采样、数字滤波和数字相差补偿,RS-485通信等技术,实现了与现场干扰的全隔离,采样信号数据的标幺化和真有效值,通信网络化等特点。同时详细讨论了该智能变送器通信协议的基本格式,并以一电站自动监测系统为例,介绍了其应用。
WB intelligent electrical transmitter is divided into single-phase and three-phase two classes. The transmitter is consisted of three parts: isolated sensing measure, DSP data processing and communication control, Works with single power or none-power, and DIN modularization structure is adopted. Because of the technologies of analog signal isolation, None-cross zero AC sample, digital filtering, digital discrepancy compensating, RS-485 communication interface etc are adopted, full isolation of the disturbance from field, scaling of data acquisition, the virtual value and communication of network are realized. At one time,the basal format of the communication protocol of the intelligent electric transmitter is discussed, taking example for the application of the transmitter in power-station auto-surveillance and measure system, its application is introduced.
出处
《兵工自动化》
2002年第3期14-17,共4页
Ordnance Industry Automation
基金
863/CIMS目标产品(863-511-820-041)
