JPWO2022064702A5 - - Google Patents
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- JPWO2022064702A5 JPWO2022064702A5 JP2022551102A JP2022551102A JPWO2022064702A5 JP WO2022064702 A5 JPWO2022064702 A5 JP WO2022064702A5 JP 2022551102 A JP2022551102 A JP 2022551102A JP 2022551102 A JP2022551102 A JP 2022551102A JP WO2022064702 A5 JPWO2022064702 A5 JP WO2022064702A5
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- signal
- gain error
- phase
- error
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- 238000006243 chemical reaction Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 3
Claims (4)
前記電動機に流れる電流を検出する電流検出装置と、
前記電動機の入力のうちの２相に電流を流して２相間の前記電流検出装置のゲイン誤差を検出し、前記ゲイン誤差を補償した駆動信号を前記電力変換装置に出力する制御部とを備え、
前記制御部は、
前記ゲイン誤差を検出し、前記ゲイン誤差に対する補償信号を出力する誤差補償部と、
回転指令と、前記補償信号とに基づいて前記駆動信号を出力する速度制御部とを備え、
前記誤差補償部は、
前記ゲイン誤差に基づき前記補償信号を生成する演算部と、
前記ゲイン誤差が閾値以上の誤差である場合に、前記電力変換装置を停止する、故障判定部とを含む、電動機制御装置。 a power conversion device that converts power from a power supply and supplies AC power to the electric motor;
a current detection device that detects the current flowing through the electric motor;
a control unit that causes a current to flow through two phases of the input of the electric motor, detects a gain error of the current detection device between the two phases, and outputs a drive signal that compensates for the gain error to the power conversion device ;
The control unit
an error compensation unit that detects the gain error and outputs a compensation signal for the gain error;
a speed control unit that outputs the drive signal based on the rotation command and the compensation signal;
The error compensator is
a calculation unit that generates the compensation signal based on the gain error;
and a failure determination unit that stops the power conversion device when the gain error is equal to or greater than a threshold .
前記電流検出装置で検出された２相の電流値を前記２相にそれぞれ対応するデジタル信号である第１信号および第２信号に変換するＡ／Ｄ変換器と、
前記第１信号、前記第２信号の各々に対して電流のオフセット処理を行なって第３信号および第４信号を生成するオフセット処理部と、
前記第３信号および前記第４信号をそれぞれ絶対値変換して第５信号および第６信号を生成する絶対値変換部と、
前記第５信号と前記第６信号とを補正することによって前記ゲイン誤差を補償するための補正係数を出力する誤差調整部とを含む、請求項１に記載の電動機制御装置。 The calculation unit is
an A/D converter that converts two-phase current values detected by the current detection device into a first signal and a second signal, which are digital signals respectively corresponding to the two phases;
an offset processing unit that performs current offset processing on each of the first signal and the second signal to generate a third signal and a fourth signal;
an absolute value converter that converts the absolute values of the third signal and the fourth signal to generate a fifth signal and a sixth signal;
2. The motor controller according to claim 1 , further comprising an error adjuster that outputs a correction coefficient for compensating for said gain error by correcting said fifth signal and said sixth signal.
前記制御部は、Ｕ相を基準とするＶ相のゲイン誤差を補償するとともに、Ｕ相を基準とするＷ相のゲイン誤差を補償するように構成される、請求項１に記載の電動機制御装置。 The electric motor has U-phase, V-phase, and W-phase inputs,
2. The motor control device according to claim 1, wherein said control unit is configured to compensate for a V-phase gain error relative to the U-phase and to compensate for a W-phase gain error relative to the U-phase. .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2020/036655 WO2022064702A1 (en) | 2020-09-28 | 2020-09-28 | Electric motor control apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2022064702A1 JPWO2022064702A1 (en) | 2022-03-31 |
| JPWO2022064702A5 true JPWO2022064702A5 (en) | 2022-10-24 |
| JP7378630B2 JP7378630B2 (en) | 2023-11-13 |
Family
ID=80845129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022551102A Active JP7378630B2 (en) | 2020-09-28 | 2020-09-28 | Electric motor control device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7378630B2 (en) |
| WO (1) | WO2022064702A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3276840B2 (en) * | 1996-02-13 | 2002-04-22 | フジテック株式会社 | Correction gain setting method for AC elevator control device |
| JP2004120814A (en) * | 2002-09-24 | 2004-04-15 | Mitsubishi Electric Corp | Motor controller, motor unit, and controlling method of motor |
| JP5984166B2 (en) * | 2015-02-25 | 2016-09-06 | 三菱電機株式会社 | Electric motor control device |
-
2020
- 2020-09-28 WO PCT/JP2020/036655 patent/WO2022064702A1/en active Application Filing
- 2020-09-28 JP JP2022551102A patent/JP7378630B2/en active Active
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