CAJ | 학술논문

交流主动磁轴承采用三相逆变器驱动，能够降低功放损耗，减小体积，降低磁轴承整体成本，且逆变器易于与DSP连接，实现磁轴承高速高精数字控制。在介绍交流磁轴承的结构和工作原理基础上，导出了磁轴承径向悬浮力的数学模型。依据试验样机需要满足的性能要求，对磁轴承主要参数进行了设计和优化，并利用Ansoft有限元软件对径向悬浮力进行了分析，最后对交流磁轴承进行了静态起浮和扰动实验。理论研究和试验表明，交流主动磁轴承的磁路结构设计合理，静态悬浮力和最大悬浮力满足性能要求，对研制高性能低成本交流磁轴承具有参考和应用价值。
교류주동자축승채용삼상역변기구동，능구강저공방손모，감소체적，강저자축승정체성본，차역변기역우여DSP련접，실현자축승고속고정수자공제。재개소교류자축승적결구화공작원리기출상，도출료자축승경향현부력적수학모형。의거시험양궤수요만족적성능요구，대자축승주요삼수진행료설계화우화，병이용Ansoft유한원연건대경향현부력진행료분석，최후대교류자축승진행료정태기부화우동실험。이론연구화시험표명，교류주동자축승적자로결구설계합리，정태현부력화최대현부력만족성능요구，대연제고성능저성본교류자축승구유삼고화응용개치。
The AC active magnetic bearing （AMB） is driven by a 3-phase power converter, which can reduce the loss of power amplifier, decrease the volume and overall cost. It can be easily connected with DSP controller and can realize digital control with higher speed and higher accuracy. Based on the configuration and operation principle of the AC active magnetic bearing, the mathematical model of the radial suspension force was deduced. According to the performance requirement from the experiment prototype, the parameters of the AC AMB were designed and optimized. The radial suspension force of the rotor was analyzed by using Ansoft finite element software, and the static suspension and disturbance experiments of the AC AMB were carried out finally. The theory analysis and the experimental results show that the magnetic circuit of the AC AMB is correct and the static suspension force and the maximum suspension force satisfy design requirements. It provides reference and application value for developing high performance and low cost AC active magnetic bearings.