摘要
在电力系统中,基于Rogowski线圈的电子式电流互感器在数字变电站中的应用已十分普及。在对电子式互感器的组成及结构分析的基础上,通过matlab的simulink对电子式互感器进行了模拟仿真。Rogowski线圈来模拟传统的电磁式互感器,通过Σ-ΔADC转换器及数字滤波器环节将高压侧的模拟量转换为数字量输出,并通过simulink实现FT3格式组帧后经光纤以太网送至FPGA开发板,经曼码编解码及CRC校验送至互感器接口合并单元中。通过实验验证网络接口得到了FT3帧格式数据,满足设计要求。
In the power system, electronic current transformer based on the Rogowski coil has been widely used in digital substation. Based on the analysis of its composition and structure, the electronic transformer is simulated by the Simulink module in Matlab. Rogowski coil is used to simulate the traditional transformer Using ∑-△ ADC converter and digital filter, analog signal from the high-pressure side is converted to digital output data, which is sent via fiber optic Ethernet to FPGA development board after FT3 format framing by Simulink. The data is then sent to the merged unit of transformer＇s interface after Manchester encoding and decoding, and CRC check. The network＇s interface gets the FT3 frame format data which satisfies the design＇s requirement.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2018年第1期298-303,共6页
Journal of System Simulation
