治金电解工艺用12脉整流变压器滤波装置设计

Design of 12 Pulse Rectifier Transformer Filtering Device for Metallurgical Electrolysis Process

治金电解工艺需要采用直流电流通过电解质溶液或熔融状态电解质,在电解槽阴极和阳极上引起氧化还原反应进行化学品的合成、高纯物质的制造以及材料表面的处理。工业上常采用多脉波整流系统获得直流电源。多脉波整流特征次谐波电流含量较大,需要针对特征谐波次数进行抑制。本文就220kV整流变系统滤波器进行设计,采用调谐滤波器+C型高通滤波器组合方式,并在Simulink搭建仿真模型,验证了滤波方案的可行性,为治金电解工艺整流变谐波抑制提供参考。

The metallurgical electrolysis process requires the use of direct current to pass through electrolyte solutions or molten electrolytes,causing oxidation-reduction reactions on the cathode and anode of the electrolytic cell for chemical synthesis,manufacturing of high-purity substances,and surface treatment of materials.Multiple pulse rectification systems are commonly used in industry to obtain DC power.The characteristic harmonic current content of multi pulse rectification is relatively high,and it is necessary to suppress the characteristic harmonic frequency.This article designs a filter for a 220kV rectifier transformer system,using a combination of a single tuned filter and a C-type high pass filter.A simulation model is built in Simulink to verify the feasibility of the filtering scheme,providing reference for harmonic suppression in metallurgical electrolysis processes.