感应加热装置负载的电磁功率计算

Calculation of Electromagnetic Power of Induction Heating Device Load

针对高频环境下传统电磁功率计算方法存在较大误差的问题,该文以50 kW/12 kHz感应加热装置为研究对象,将其负载的电磁环境视为准静态场,建立了数学模型,采用解析法和有限元法相结合的方案,对其电磁功率进行了计算。随后又搭建了感应加热实验平台,最终所得计算值与实验值相比误差在6%以内。因此,其中的电磁功率计算方法可为同类型装置的电磁功率计算提供参考。

Aiming at the problem of large errors in traditional electromagnetic power calculation methods in high frequency environment,this paper takes 50 kW/12 kHz induction heating device as the research object,regards the electromagnetic environment of its load as a quasi-static field,establishes a mathematical model,uses the solution combining analytic method with the finite element method to calculate its electromagnetic power.Later,an induction heating experiment platform is built,and the error between the calculated value and the experimental value is within 6%.Therefore,the electromagnetic power calculation method can provide reference for the electromagnetic power calculation of the same type of devices.