PROBLEM TO BE SOLVED: To provide an estimator that without complicating a passage structure of a rotary electric machine to be cooled using cooling oil, accurately estimates a coil temperature of the rotary electric machine.SOLUTION: An estimator 10 includes: a model unit 23 for calculating a state quantity using an input signal and a relation expression showing a target model; a correction signal measurement sensor 12 for measuring a correction signal for correcting the state quantity; a correction unit 24 for outputting a value for correcting the state quantity using the correction signal to the model unit; and a model change unit for changing the model unit 23 depending on an oil flow relation value related to a change in a flow of cooling oil. The correction signal measurement sensor is arranged so as to be in contact with a position on a coil lead wire constituting a stator coil, a terminal connected to the coil lead wire, or a metal member constituting a power line connected between the coil lead wire and the terminal, the position not receiving a pour of the cooling oil.SELECTED DRAWING: Figure 2

    【課題】推定器において、冷却用オイルで冷却される回転電機の流路構造を複雑化することなく、回転電機のコイル温度を高精度に推定することである。【解決手段】推定器10は、入力信号、及び対象モデルを表す関係式を用いて状態量を計算するモデル部23と、状態量を補正するための補正信号を計測する補正信号計測用センサ12と、補正信号により状態量を補正するための値をモデル部に出力する補正部24と、モデル部23を、冷却用オイルの流れの変化に関係するオイル流れ関係値に応じて変更するモデル変更部とを含む。補正信号計測用センサは、ステータコイルを構成するコイル導線、またはコイル導線に接続された端子、またはコイル導線及び端子の間に接続された動力線を構成する金属部材上であって、冷却用オイルがかからない位置に接触して配置される。【選択図】図2


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    Title :

    ESTIMATOR AND ESTIMATOR SYSTEM


    Additional title:

    推定器及び推定器システム


    Contributors:

    Publication date :

    2018-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01K MEASURING TEMPERATURE , Messen der Temperatur / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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