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1. 发明公开

EP3239661A1 RESOLVER DEVICE 有权
标题翻译： RESOLVER设备
公开(公告)号：EP3239661A1
公开(公告)日：2017-11-01
申请号：EP15884015.7
申请日：2015-11-24
申请人： Japan Aviation Electronics Industry, Ltd.
发明人： NAKAZATO, Kenichi , KOBAYASHI, Yoshiyuki
IPC分类号： G01D5/20 , G01D5/244
CPC分类号： G01D5/20 , G01B21/22 , G01D5/244 , G01D5/24476 , H03M1/485
摘要： An n-th-harmonic error estimation unit that estimates the error component of an n-th harmonic included in a resolver angle θ and a subtraction unit that subtracts an n-th-harmonic estimated angle error from θ to output the corrected angle θ' are included. The n-th-harmonic error estimation unit includes an n-th-harmonic error phase detection unit that obtains a phase difference u such that the integral, for a 1/n period of an electrical angle of the rotor, of the output obtained by synchronously detecting θ by using a rectangular wave obtained by comparison from a COS wave expressed as cos(nθ + u) becomes zero and generates a SIN wave expressed as sin(nθ + u); a synchronous detector that synchronously detects θ' by using a rectangular wave obtained by comparison from the SIN wave; an integrator that integrates the detected output for a 1/n period of the electrical angle; an actual angle integral calculation unit; an amplitude setter that sets an error amplitude from the value obtained by subtracting the integral of the actual angle integral calculation unit from the integral of the integrator; and a multiplier that generates the n-th-harmonic estimated angle error by multiplying the SIN wave by the error amplitude. A large storage area becomes unnecessary, and an angle error can be corrected.
摘要翻译：估计旋转变压器角度θ中包含的n次谐波的误差成分的n次谐波误差估计部，以及从θ减去n次的估计角度误差而输出修正后的角度θ'的减法部，被包含在内。 n次谐波误差估计单元包括n次谐波误差相位检测单元，该n次谐波误差相位检测单元获得相位差u，使得对于转子的电角度的1 / n周期，通过使用由表示为cos（nθ+ u）的COS波进行比较而获得的矩形波同时检测θ变为零并产生表示为sin（nθ+ u）的SIN波; 同步检测器，其通过使用通过与SIN波进行比较而获得的矩形波来同步地检测θ' 积分器，其对电角度的1 / n周期的检测输出进行积分; 实际角度积分计算单元; 幅度设定器，其从通过从积分器的积分中减去实际角度积分计算单元的积分而获得的值来设定误差幅度; 以及乘法器，其通过将SIN波与误差幅度相乘来生成n次谐波估计角度误差。不需要大的存储区域，并且可以校正角度误差。

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