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Ac Motor Drive System
Abstract: In order to obtain an AC motor drive system wherein a converter (11) reliably regenerates electricity to a grid power supply (10) this AC motor drive system comprises a charge/discharge control unit (2) that controls a charge/discharge circuit (15) on the basis of a DC voltage value on the output side of the converter (11) and a charge/discharge current value for an electricity storage device (17) that charges DC power from a DC main line (12) and discharges to the DC main line (12). The charge/discharge control unit (2) charges the electricity storage device (17) such that the DC voltage value becomes a voltage threshold value corresponding to a power threshold value in the event that regenerated power from an AC motor (16) via an inverter (14) for regenerated power exceeds the power threshold value. If the regenerated power is no more than the power threshold value the converter (11) performs regeneration once the DC voltage value has reached at least a regeneration start voltage threshold value and ends regeneration when the value has reached no more than a regeneration end voltage threshold value. A time average value for the DC voltage value during regeneration is lower than when the converter (11) has no load i.e. is not supplying power or executing regeneration.
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUBISHI ELECTRIC CORPORATION
Inventors
1. WATABU Kazuyoshi
2. TABUCHI Akiko
3. KANDA Yoshinori
Specification
FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10, Rule 13]
AC MOTOR DRIVE SYSTEM;
MITSUBISHI ELECTRIC CORPORATION, A
CORPORATION ORGANIZED AND EXISTING
UNDER THE LAWS OF JAPAN, WHOSE ADDRESS
IS 7-3, MARUNOUCHI 2-CHOME,
CHIYODA-KU, TOKYO 100-8310 JAPAN
THE FOLLOWING SPECIFICATION
PARTICULARLY DESCRIBES THE INVENTION
AND THE MANNER IN WHICH IT IS TO BE
PERFORMED.
1
the power-storage-device both-end-voltage-value
detector outputs the detected voltage value across the
power storage device to the charge and discharge controller.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | Form 5 [17-11-2016(online)].pdf | 2016-11-17 |
| 2 | Form 3 [17-11-2016(online)].pdf | 2016-11-17 |
| 3 | Form 20 [17-11-2016(online)].pdf | 2016-11-17 |
| 4 | Form 18 [17-11-2016(online)].pdf_17.pdf | 2016-11-17 |
| 5 | Form 18 [17-11-2016(online)].pdf | 2016-11-17 |
| 6 | Form 1 [17-11-2016(online)].pdf | 2016-11-17 |
| 7 | Drawing [17-11-2016(online)].pdf | 2016-11-17 |
| 8 | Description(Complete) [17-11-2016(online)].pdf | 2016-11-17 |
| 9 | Marked Copy [05-12-2016(online)].pdf | 2016-12-05 |
| 10 | Form 13 [05-12-2016(online)].pdf | 2016-12-05 |
| 11 | Description(Complete) [05-12-2016(online)].pdf_157.pdf | 2016-12-05 |
| 12 | Description(Complete) [05-12-2016(online)].pdf | 2016-12-05 |
| 13 | Other Patent Document [12-01-2017(online)].pdf_114.pdf | 2017-01-12 |
| 14 | Other Patent Document [12-01-2017(online)].pdf | 2017-01-12 |
| 15 | Form 26 [12-01-2017(online)].pdf | 2017-01-12 |
| 16 | 201627039294-Original Under Rule 6 (1 A)-13-01-2017.pdf | 2017-01-13 |
| 17 | 201627039294-Original Under Rule 6 (1 A)- 13-01-2017.pdf | 2017-01-13 |
| 18 | Form 3 [29-04-2017(online)].pdf | 2017-04-29 |
| 19 | ABSTRACT1.jpg | 2018-08-11 |
| 20 | 201627039294.pdf | 2018-08-11 |
| 21 | 201627039294-ORIGINAL UNDER RULE 6(1A) OTHERS-130117.pdf | 2018-08-11 |
| 22 | 201627039294-FORM 3 [30-11-2018(online)].pdf | 2018-11-30 |
| 23 | 201627039294-FER.pdf | 2019-05-03 |
| 24 | 201627039294-FORM 3 [05-07-2019(online)].pdf | 2019-07-05 |
| 25 | 201627039294-FER_SER_REPLY [29-07-2019(online)].pdf | 2019-07-29 |
| 26 | 201627039294-FORM 3 [20-12-2021(online)].pdf | 2021-12-20 |
| 27 | 201627039294-US(14)-HearingNotice-(HearingDate-16-11-2023).pdf | 2023-11-02 |
| 28 | 201627039294-Correspondence to notify the Controller [09-11-2023(online)].pdf | 2023-11-09 |
Search Strategy
| 1 | SS_26-04-2019.pdf |