Abstract:

In order to solve the problem of very expensive and complicated measurement system currently used,this paper first analysed the factors which affect the speed and torque of the AC asynchronous electrical dynamometer,then put forward a soft-sensing modal based on the support vector regression,which can be used to approximate nonlinear function in the whole region.The experiments prove that the proposed model is effective,and it affords a new method for the measurement of the input power,output power and the torque in the power-mechanical field.

Key words: soft-sensing;the support vector regression(SVR), the AC asynchronous electrical dynamometer;power testing

摘要：

为解决目前测试方法复杂且成本高的问题，分析了影响测功机转速和转矩测量的主要因素，并利用支持向量回归机（SVR）能够从全局意义上逼近任意非线性关系的特点，构建了交流异步电力测功机的软测量模型。实验证明，该测试方法具有可行性，为发动机等传动设备的输入输出机械功率的测试提供了一种新的方法。

关键词: 软测量, 支持向量回归机, 交流异步电力测功机, 功率测试