JPH02151295A - Inverter device for air conditioner - Google Patents
Inverter device for air conditionerInfo
- Publication number
- JPH02151295A JPH02151295A JP63300505A JP30050588A JPH02151295A JP H02151295 A JPH02151295 A JP H02151295A JP 63300505 A JP63300505 A JP 63300505A JP 30050588 A JP30050588 A JP 30050588A JP H02151295 A JPH02151295 A JP H02151295A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- motor
- voltage
- compressor
- time
- 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.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/26—Problems to be solved characterised by the startup of the refrigeration cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Inverter Devices (AREA)
- Air Conditioning Control Device (AREA)
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、圧縮機用゛４励礪の回転数を制御するインバ
ータ装置、特にその出力電圧および周波数を同期式パル
ス幅変調方式により制御するインツイータ装置の起動方
法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an inverter device for controlling the rotational speed of a 4-way compressor, and in particular, an inverter device for controlling the output voltage and frequency thereof by a synchronous pulse width modulation method. The present invention relates to a method for starting an in-tweeter device.
従来の装置は、実開昭６１−１９５２６１号に記載のよ
うに、運転開始時ある周波数で運転している時に、圧縮
機用電動機に与える電圧のみを通常運転時より高くし起
動する方式となっていた。As described in Utility Model Application Publication No. 61-195261, conventional equipment starts by increasing only the voltage applied to the compressor motor when it is operating at a certain frequency at the start of operation compared to during normal operation. was.
上記従来技術では、同期方式にパルス幅変調側−を行っ
た場仕、第３図に周波数の変化６で示すように、キャリ
ア周波数の切換わ９の際、圧縮機用電動機より発生する
電磁音の音色が変化し、耳ぎわゆであるという問題があ
った。本発明はこの耳ざわりな音色の変化がなく圧縮機
用電動機の起動を行なりことを目的とする。In the above conventional technology, when the pulse width modulation side is applied to the synchronous method, electromagnetic noise is generated from the compressor motor when the carrier frequency is switched 9, as shown by the frequency change 6 in Fig. 3. There was a problem in that the tone changed and was jarring to the ears. The object of the present invention is to start a compressor motor without this unpleasant change in tone.
上記目的を達成するため本発明は、起動時より一定時間
は出力周波数を一定とし、圧縮機用電動機に与える減圧
のみを変えて加速を行うようにしたものである。In order to achieve the above object, the present invention keeps the output frequency constant for a certain period of time from the time of startup, and accelerates by changing only the reduced pressure applied to the compressor motor.
本発明では第１図に示す様に、圧縮機用電動機起動時か
らある一定時間は出力周波数が一定であるため、パルス
幅に調制御を行う中ヤリア周波数も一定となる。又、前
記電動機より発生する電磁音の音色はこの中ヤリア周波
数によって決まるのでキャリア周波数一定の間は音色の
変化はない。In the present invention, as shown in FIG. 1, since the output frequency is constant for a certain period of time from the start of the compressor motor, the carrier frequency is also constant during the pulse width adjustment control. Further, since the timbre of the electromagnetic sound generated by the electric motor is determined by the carrier frequency, the timbre does not change while the carrier frequency is constant.
以下、本発明の一実施例を図面により説明する。第２図
は本実施例のインバータ装置の構成を示し、直流電源部
ｌおよび、直流−交流変換を行うスイッチング用のパワ
ートランジスタ２とそれを駆動するドライブ回路３、圧
縮機用電動機に与える周波数及び電圧を決定しパルス幅
変調を行うためのパルスを作り出すマイクロコンピュー
タ４より成る。本実施例によれば第１図に示すように前
記１７機に与える周波数をｆｏ一定として電圧のみをυ
からυ１内で変化させ加速を行いある時間が経遇して前
記電動機の回転数がｆｂに近い値まで加速した後に前記
周波数と電圧を目的とする値まで徐々に上げ−る。第８
図は以上で述べた本実施例の方法で前記１ｔｖＪ機と起
動した場合のキャリア周波数の変化５と、従来方式で起
動した場合のキャリア周波数の変化６を示したものであ
るが、本実施例の起動方式の場合、前記電動機に与える
周波数がｆｏ一定で起動時の加速を行うため、この間は
キャリア周波数もｆ で一定となり、従りて前記電動Ｏ
機より発生する電磁音も一定した音色となり耳ざわりな
変化がない。又本実施例のパルス幅変調方式は同期式で
あるため、公知のように低周波数域で安定な制御な行う
ことができる。An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows the configuration of the inverter device of this embodiment, including a DC power supply unit 1, a switching power transistor 2 that performs DC-AC conversion, a drive circuit 3 that drives it, and a frequency and voltage applied to the compressor motor. It consists of a microcomputer 4 that determines the voltage and generates pulses for pulse width modulation. According to this embodiment, as shown in FIG.
After a certain period of time has elapsed and the rotational speed of the motor has accelerated to a value close to fb, the frequency and voltage are gradually increased to the target values. 8th
The figure shows the change 5 in the carrier frequency when the 1tvJ machine is started up using the method of the present embodiment described above, and the change 6 in the carrier frequency when started up using the conventional method. In the case of the starting method, the frequency given to the electric motor is constant fo and acceleration is performed at startup, so during this period the carrier frequency is also constant at f, and therefore the electromagnetic sound generated by the electric motor also has a constant tone. There are no noticeable changes. Furthermore, since the pulse width modulation method of this embodiment is a synchronous method, stable control can be performed in a low frequency range as is well known.
以上のように本発明によれば、圧縮機用電動機起動時に
キャリア周波数が一定となるので耳ぎわしな音色の変化
がない起動を行う事ができる。As described above, according to the present invention, since the carrier frequency becomes constant when the compressor motor is started, it is possible to start the compressor motor without any unpleasant change in tone.
第１図は本発明の一実施例のインバータ出力周波数と出
力電圧の関係を示す線図、第２図はインバータ装置の構
成図、第８図は従来および本発明での同期方式パルス幅
変調制御における出力周波数とキャリア周波数の関係を
示す線図である。
１・・・直流電源部 ２・・・スイッチング用パワー
トランジスタ ３・・・ドライブ回路 ４・・・マ
イクロコンピュータ ５・・・本発明のキャリア周波
数 ６・・・従来方式でのキャリア周波数。
第１回
審２図
゛−ノFig. 1 is a diagram showing the relationship between the inverter output frequency and output voltage in an embodiment of the present invention, Fig. 2 is a configuration diagram of the inverter device, and Fig. 8 is a synchronous pulse width modulation control according to the conventional method and the present invention. FIG. 2 is a diagram showing the relationship between output frequency and carrier frequency in FIG. DESCRIPTION OF SYMBOLS 1... DC power supply section 2... Power transistor for switching 3... Drive circuit 4... Microcomputer 5... Carrier frequency of this invention 6... Carrier frequency of conventional system. 1st trial Figure 2
Claims (1)
状に接続して冷凍サイクルを形成し、圧縮機用電動機の
駆動インバータ装置のパルス幅変調制御（ＰＷＭ制御）
を、スイッチングを行うキャリア周波数をインバータ出
力周波数に同期して変える同期式にて行う手段を備えた
ものにおいて、圧縮機用電動機の運転開始時より一定の
時間、前記電動機に与える周波数を一定とし、前記電動
機に与える電圧を変えることにより前記電動機の加速を
行い、前記一定時間経過後より前記電動機に与える周波
数と電圧を、目的とする値まで徐々に上げる周波数制御
部と電圧制御部とを設けたことを特徴とする空気調和機
のインバータ装置。The compressor, condenser, pressure reducing device, and evaporator are sequentially connected in a ring with refrigerant piping to form a refrigeration cycle, and pulse width modulation control (PWM control) of the drive inverter device of the compressor motor is performed.
In a device equipped with means for performing switching in a synchronous manner by changing the carrier frequency for switching in synchronization with the inverter output frequency, the frequency applied to the compressor motor is kept constant for a certain period of time from the start of operation of the motor, A frequency control unit and a voltage control unit are provided to accelerate the electric motor by changing the voltage applied to the electric motor, and gradually increase the frequency and voltage applied to the electric motor to a target value after the elapse of the certain period of time. An inverter device for an air conditioner characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300505A JPH02151295A (en) | 1988-11-30 | 1988-11-30 | Inverter device for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300505A JPH02151295A (en) | 1988-11-30 | 1988-11-30 | Inverter device for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02151295A true JPH02151295A (en) | 1990-06-11 |
Family
ID=17885628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63300505A Pending JPH02151295A (en) | 1988-11-30 | 1988-11-30 | Inverter device for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02151295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012165486A (en) * | 2011-02-03 | 2012-08-30 | Denso Corp | Switching control device |
| CN106225173A (en) * | 2016-08-22 | 2016-12-14 | 青岛海尔空调器有限总公司 | Air-conditioner with fixed frequency subnormal voltage operation control method and booster circuit |
| US11114970B2 (en) | 2017-07-19 | 2021-09-07 | Mitsubishi Electric Corporation | Motor driver, heat pump system and refrigeration and air conditioning equipment using motor driver |
-
1988
- 1988-11-30 JP JP63300505A patent/JPH02151295A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012165486A (en) * | 2011-02-03 | 2012-08-30 | Denso Corp | Switching control device |
| CN106225173A (en) * | 2016-08-22 | 2016-12-14 | 青岛海尔空调器有限总公司 | Air-conditioner with fixed frequency subnormal voltage operation control method and booster circuit |
| US11114970B2 (en) | 2017-07-19 | 2021-09-07 | Mitsubishi Electric Corporation | Motor driver, heat pump system and refrigeration and air conditioning equipment using motor driver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY126919A (en) | Starting control method of and control apparatus for synchronous motor, and air conditioner, refrigerator, washing machine and vacuum cleaner each provided with the control apparatus | |
| JP2000228896A (en) | Resonance frequency controller and control method of inverter refrigerator | |
| JPH02151295A (en) | Inverter device for air conditioner | |
| JP2008167525A (en) | Motor driver and electrical equipment equipped therewith | |
| JPH11332286A (en) | Control device of air conditioning equipment | |
| JP2002281775A5 (en) | ||
| JP3385225B2 (en) | Alarm device | |
| JPS59221546A (en) | Air conditioner | |
| JPH06294542A (en) | Control method of airconditioning apparatus | |
| JP2002101685A (en) | Inverter | |
| JPH0787773A (en) | Control method of commutatorless motor | |
| JP2000083396A (en) | Drive method of brushless motor | |
| JPH06273029A (en) | Refrigerator | |
| JP3678781B2 (en) | AC motor control device | |
| JP2002247874A (en) | Blower motor controlling device | |
| JPS6474078A (en) | Starting method for ventilator | |
| JPH0228353Y2 (en) | ||
| JPH04145893A (en) | Controlling circuit for inverter | |
| JPS623181A (en) | Compressor driving apparatus | |
| JP2002186286A (en) | Inverter | |
| JP3814472B2 (en) | Inverter device | |
| JPH06197552A (en) | Power conversion device | |
| JPH1132496A (en) | Motor-controlling device | |
| JPH0467799A (en) | Voltage control method of loom inverter | |
| JP2000333486A (en) | Control of motor |