GB201207874D0 - Inverter controller and method of controlling an inverter - Google Patents

Inverter controller and method of controlling an inverter

Info

Publication number
GB201207874D0
GB201207874D0 GBGB1207874.7A GB201207874A GB201207874D0 GB 201207874 D0 GB201207874 D0 GB 201207874D0 GB 201207874 A GB201207874 A GB 201207874A GB 201207874 D0 GB201207874 D0 GB 201207874D0
Authority
GB
United Kingdom
Prior art keywords
temperature
switching frequency
threshold
inverter
variable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB1207874.7A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Control Techniques Ltd
Original Assignee
Control Techniques Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Control Techniques Ltd filed Critical Control Techniques Ltd
Priority to GBGB1207874.7A priority Critical patent/GB201207874D0/en
Publication of GB201207874D0 publication Critical patent/GB201207874D0/en
Priority to GB1308019.7A priority patent/GB2503779B/en
Priority to CN201310162843.7A priority patent/CN103384123B/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

An iterative feedback process for optimising the switching frequency of an inverter based on predetermined lower and upper operating temperature limits. Different lower and upper temperature limits exist for the inverter ripple temperature Tripple and peak temperature Tpeak values. The upper temperature limits represent the failure temperature threshold. The method of controlling the switching frequency vs of the inverter comprises steps of: measuring/computing a signal indicative of a temperature variable at a first switching frequency to determine a measured/computed temperature variable for example Tripple or Tpeak ; comparing the measured temperature variable to a first temperature threshold and also a second temperature threshold, which may be lower than the first threshold; determining if the measured temperature variable is below the first threshold, and if so, calculating the temperature variable at a second switching frequency vs, which may be higher than the first switching frequency; if the temperature variable calculated at the second switching frequency is less than the first threshold, setting the switching frequency of the inverter to the second switching frequency 406, which may be higher than the first switching frequency. If the measured temperature variable is found to be between the first and second threshold then the step is repeated after a predetermined time, based on the system sampling rate. If the measured temperature variable is found to be above the first threshold then the switching frequency is reduced 404. The steps of reducing the frequency can continue until a minimum frequency is obtained, to prevent excess audible noise. The method may further involve online temperature measurement. The inverter may be suitable for use with a motor drive.
GBGB1207874.7A 2012-05-04 2012-05-04 Inverter controller and method of controlling an inverter Ceased GB201207874D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GBGB1207874.7A GB201207874D0 (en) 2012-05-04 2012-05-04 Inverter controller and method of controlling an inverter
GB1308019.7A GB2503779B (en) 2012-05-04 2013-05-03 Inverter controller and method of controlling an inverter
CN201310162843.7A CN103384123B (en) 2012-05-04 2013-05-06 The method of the switching frequency of circuit control device and control inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1207874.7A GB201207874D0 (en) 2012-05-04 2012-05-04 Inverter controller and method of controlling an inverter

Publications (1)

Publication Number Publication Date
GB201207874D0 true GB201207874D0 (en) 2012-06-20

Family

ID=46396548

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1207874.7A Ceased GB201207874D0 (en) 2012-05-04 2012-05-04 Inverter controller and method of controlling an inverter
GB1308019.7A Expired - Fee Related GB2503779B (en) 2012-05-04 2013-05-03 Inverter controller and method of controlling an inverter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1308019.7A Expired - Fee Related GB2503779B (en) 2012-05-04 2013-05-03 Inverter controller and method of controlling an inverter

Country Status (2)

Country Link
CN (1) CN103384123B (en)
GB (2) GB201207874D0 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014218403B4 (en) * 2014-09-15 2016-06-16 Siemens Aktiengesellschaft Temperature monitoring of a controlled resonant converter with variable switching frequency
EP3012952B1 (en) * 2014-10-24 2019-01-02 ABB Schweiz AG Limiting of temperature variations in a semiconductor component of a switching converter
CN106357194B (en) * 2015-07-15 2019-04-05 富士电机（中国）有限公司 Control device for inverter and inverter control method
KR20180021550A (en) * 2016-08-22 2018-03-05 현대자동차주식회사 Method for controlling switching frequency
GB2569796A (en) * 2017-12-21 2019-07-03 Nidec Control Techniques Ltd Drive lifetime extension
CN111385922B (en) * 2018-12-29 2022-04-01 佛山市顺德区美的电热电器制造有限公司 Control method and device of electromagnetic heating appliance and electromagnetic heating appliance
CN113037148B (en) * 2019-12-24 2022-07-19 中车永济电机有限公司 Converter and traction drive system
CN112054744B (en) * 2020-09-18 2022-07-05 中国第一汽车股份有限公司 Inverter temperature control method, system, vehicle and medium
CN117081380B (en) * 2023-10-16 2024-01-09 杭州朗旭新能源科技有限公司 Temperature control system and temperature control method for micro inverter

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0284011A (en) * 1988-09-17 1990-03-26 Fuji Electric Co Ltd Temperature protection for power converter
JPH0382396A (en) * 1989-08-23 1991-04-08 Mitsubishi Electric Corp Pulse width modulation type inverter apparatus
JPH03195394A (en) * 1989-12-21 1991-08-26 Daikin Ind Ltd Air-conditioner
JP3430773B2 (en) * 1996-02-21 2003-07-28 株式会社明電舎 Overheating protection method of switching element in inverter device
JP2000228882A (en) * 1999-02-04 2000-08-15 Meidensha Corp Protective device for variable speed inverter
CN100477467C (en) * 2003-03-12 2009-04-08 三菱电机株式会社 Motor controller
US7675250B2 (en) * 2003-11-12 2010-03-09 Lutron Electronics Co., Inc. Thermal protection for lamp ballasts
JP2006025565A (en) * 2004-07-09 2006-01-26 Matsushita Electric Ind Co Ltd Inverter circuit and compressor
JP4274271B2 (en) * 2007-07-26 2009-06-03 トヨタ自動車株式会社 Voltage converter
US8471516B2 (en) * 2010-05-24 2013-06-25 Rockwell Automation Technologies, Inc. Adjustable speed drive lifetime improvement method

Also Published As

Publication number Publication date
GB201308019D0 (en) 2013-06-12
GB2503779B (en) 2020-03-04
CN103384123B (en) 2017-06-16
CN103384123A (en) 2013-11-06
GB2503779A (en) 2014-01-08

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)