基于现场总线的变压器中性点直流分量监测系统设计

The Design of DC Componet Observation System of the Transformer Neutral Point Based on Field Busbars

变压器作为直流输电技术中关键设备,其运行工况直接关系着配电网运行状态,为保证直流输电不影响配电网稳定运行,设计基于现场总线的变压器中性点直流分量监测系统。在硬件方面,采用AD7506多路开关设计数据采集模块,采用LM53603-Q1型号DC-DC芯片设计电源模块;在软件方面,基于半周积分算法设计数据采集算法,基于Lonworks现场总线设计通信协议。本文设计的变压器中性点直流分量监测系统在测试中表现良好,验证了此系统的功能与性能,达到预期目标。

The transformer,as the key equipment in DC transmission technology,its service working conditions di⁃rectly relate to distributikon network running state.In order to ensure DC transimission not to influence stable run⁃ning of distribution network,design the DC component observation system of the transformer neutral point based on field busbars.In the hard ware,adopt collecting module of AD2506 multi⁃way swithch design data and adopt DC⁃DC chip of type LM53603-Q1 to design power module;In the software,based on semi⁃lycle integral algorthm,de⁃sign data acquisition algorithm and based on lonworks field busbars,design communication portocol.In the paper,the design of the DC component observation system of the transformer neutral point does well in the test,which proves the system function and performance,achiving expected aim.