JPS5828936A - Operation controlling method of compressor with inverter - Google Patents

Operation controlling method of compressor with inverter

Info

Publication number
JPS5828936A
JPS5828936A JP56126998A JP12699881A JPS5828936A JP S5828936 A JPS5828936 A JP S5828936A JP 56126998 A JP56126998 A JP 56126998A JP 12699881 A JP12699881 A JP 12699881A JP S5828936 A JPS5828936 A JP S5828936A
Authority
JP
Japan
Prior art keywords
time
compressor
inverter
heat pump
defrosting
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
Application number
JP56126998A
Other languages
Japanese (ja)
Inventor
Keiichi Morita
守田　慶一
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56126998A priority Critical patent/JPS5828936A/en
Publication of JPS5828936A publication Critical patent/JPS5828936A/en
Pending legal-status Critical Current

Links

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • 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

Abstract

PURPOSE:To reduce the difference between the discharge pressure and suction pressure of the compressor and consequently reduce the noise emitted at balancing of the pressures by a method wherein the output frequency of the inverter is lowered for a fixed period of time before the change-over from the heating operation to the defrosting operation of heat pump. CONSTITUTION:The heat pump 1 consists of the compressor 2, a four-way valve 3, an indoor side heat exchanger 4, a throttling device 5 and an outdoor side heat exchanger 6, all of which are connected by means of piping with one another. In the heat pump 1, the rotational frequency of the compressor 2 is controlled by changing the output frequency of the inverter 7. When a defrosting signal is generated in said heat pump 1 controlled with the inverter 7, the time is counted from the time T0 when the defrosting signal is detected and when the time attains to the time T1, which is several minutes before the time T2 for starting the defrosting operation, the output frequency of the inverter 7 is lowered. As a result, the difference between the discharge pressure and the suction pressure of the compressor 1 is turned to be smaller as compared with the pressure difference which had during the interval of time from T0 to T1. After the elapse of time T2 from the time T0, the heat pump 1 is changed-over from the heating operation to the defrosting operation.

Description

【発明の詳細な説明】 本発明はインバータによる圧縮機の運転制御方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the operation of a compressor using an inverter.

近年、と−トボンプの圧縮機をインバータによって運転
制御する方法が採用されて−る。In recent years, a method has been adopted in which the operation of Totobonp's compressor is controlled using an inverter.

第１１１Ｉはその種のと−トポンプの一例を示している
０図中、符号ＩＦｉｋ−）ポンプであシ、圧縮機２、四
方９ＰＳＳ室内側熱交換！！４、絞り装置６、室外側熱
交換器６を流路で接続して形成されている。このに−ト
ボンプ１は、イｙ−（−タフによる出力周波数を変化さ
せることによって、圧縮機２０回転数を可変的に制御し
、そして圧縮機２によって冷媒を循環させ、暖房、除霜
、冷房等の各種空ｖ４を行なうよう形成されている。No. 111I shows an example of this type of pump. In the figure, the reference number IFik-) is a pump, compressor 2, and 9PSS on each side for indoor heat exchange! ! 4. It is formed by connecting the expansion device 6 and the outdoor heat exchanger 6 through a flow path. By changing the output frequency of the iy-(-tough), the compressor 20 rotation speed is variably controlled, and the compressor 2 circulates the refrigerant to perform heating, defrosting, and cooling. It is formed to perform various types of sky v4 such as.

とζろが、インパータマによシ圧纏機２の回転数を可変
制御する場合、ヒートポンプｌを暖房から除霜に切換え
る場合に、圧縮機！！に圧カバランス音が発生するとい
う不都合があり九。The compressor! ! There is an inconvenience that pressure balance noise is generated.

即ち、！−トポンプ１は外気温が低下するに従ってその
暖房能力を大きくする九めに圧縮機２を高周波数回転さ
せる。圧縮機２は高速回転すると、その吐出圧力と吸込
圧力との圧力差が非常に大きくなる。こめ圧力差が大１
１％／％状線で、ヒートポンプｌを四方弁８を切換える
等して暖房運転から除霜運転に切換えると、圧縮機２に
は弁切換等に早なって大暑な圧カバランス音が生じてし
まう。That is,! - The pump 1 rotates the compressor 2 at a high frequency to increase its heating capacity as the outside temperature decreases. When the compressor 2 rotates at high speed, the pressure difference between its discharge pressure and suction pressure becomes very large. Large pressure difference 1
At the 1%/% line, when the heat pump 1 is switched from heating operation to defrosting operation by switching the four-way valve 8, etc., the compressor 2 generates a loud pressure balance noise due to the valve switching, etc. Put it away.

本発明はこれらの点に−みてなされたものであハ圧縮機
を高周波数回転させている際に％と−トポンプを暖房運
転から除霜運転に切換えても１ＢＥＪＩＩＩＫ８Ｅカバ
ランス音が生じないようＫして圧縮機Ｏ運転を制御する
ことのできる方法を提供することを目的とする。The present invention has been made in view of these points, and is designed to prevent the generation of cabling noise even when the pump is switched from heating operation to defrosting operation while the compressor is rotating at a high frequency. An object of the present invention is to provide a method that can control the operation of a compressor.

本発明の目的は、！−）ポンプを暖房運転から除霜運＠
に切換える際に、切換前の一定期間インバータの出力周
波数を低下させて圧縮機の吐出圧力と吸込圧力との差を
小さくシ、その後に前記切換を行なうようにすることに
よって達成される。The purpose of the present invention is! −) Switch the pump from heating operation to defrosting @
This is achieved by lowering the output frequency of the inverter for a certain period before switching to reduce the difference between the discharge pressure and suction pressure of the compressor, and then performing the switching.

以下、本発明を実施例について説明する。Hereinafter, the present invention will be described with reference to examples.

一般に、外気温が低下するほど必要暖房能力は高くなる
丸め、圧縮機の高周波数運転の損金が多くなる。！え、
外気温が低下するほどと−トポンプが暖房運転から除霜
運転に切換わる損金が多くなる。Generally, the lower the outside temperature, the higher the required heating capacity, and the higher the loss of high-frequency operation of the compressor. ! picture,
The lower the outside temperature is, the more loss there will be when the top pump switches from heating operation to defrosting operation.

この切換呻に圧カバランス音が生じないように１本実施
例では第３〜８図に示すようにして圧縮機を這＠畜せて
いる。In this embodiment, the compressor is moved as shown in FIGS. 3 to 8 so that pressure balance noise does not occur during this switching process.

今、ヒートポンプｌが、電昇側熱交換器６の温度が一定
値以下に達したこと等からなる除霜信号を検知し丸後、
一定時間（例えば聞分）経過した際に暖房運転から除霜
運転に切“換えられるように形成されているものとする
。Now, after the heat pump l detects a defrosting signal indicating that the temperature of the electric heating side heat exchanger 6 has reached a certain value or less,
It is assumed that the heating operation is switched to the defrosting operation after a certain period of time (for example, a certain period of time) has elapsed.

本実施例では、除霜信号を検知し九テ＝Ｔ・時から、タ
イカウントして除霜開始時テ：３＋７　、の数分前７ｍ
７．に達すると、インバータ７の出力周波数が！！露か
らＨｉｕｉＮ　ｔで低下させられる。これＫよ〕、！・
からＴ１時間中、大きかったＥｌ１機２の吐出圧力と吸
込圧力との差Ｐ、はＰ、へと小さくされる。そして、テ
・からＴ１時間が経過するとヒートポンプ１は暖房運転
から除霜運転に切換えられる。しかし、この際圧縮機２
の吐出圧力と吸込圧力との差Ｐ、が小さいため、圧カバ
ランス音は極めて小さく抑えられることとなる。In this embodiment, the defrosting signal is detected and the time is counted from 9 te=T.times to 7 m several minutes before the defrosting start time te: 3+7.
7. When the output frequency of inverter 7 reaches ! ! Dew is lowered by HiuiNt. This is K],!・
During the time T1, the large difference P between the discharge pressure and suction pressure of El1 machine 2 is reduced to P. Then, when T1 time has elapsed from TE, the heat pump 1 is switched from heating operation to defrosting operation. However, at this time compressor 2
Since the difference P between the discharge pressure and the suction pressure is small, the pressure balance noise can be suppressed to an extremely low level.

このように１本発明方法は、ヒートポンプが暖房運転か
ら除霜運転に切換わる前に、一定時間、インバータの出
力周波数を小さくして圧ａｍＯ回転周波数を低下させ九
から、吐出圧力と吸込圧力との差が小さくなシ、圧カバ
ランス音も小さく抑えられる等の効果を奏する。In this way, in the method of the present invention, before the heat pump switches from heating operation to defrosting operation, the output frequency of the inverter is decreased for a certain period of time to lower the pressure amO rotation frequency, and the discharge pressure and suction pressure are adjusted. This has the effect of reducing the difference in pressure and pressure balance noise to a small level.

なお、！−）ポンプの運転状態の切換は四方弁のほかに
ホラ訃ガスバイパス方式等各種方法によって行なっても
よい。In addition,! -) The operation state of the pump may be switched by various methods such as a four-way valve or a concave gas bypass method.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はインバータを用−九と−トポンプを示す系統図
、第２図は本発明方法による圧縮機の吐出圧力と吸込圧
力Ｏ変化状態を示す特性図、第８図は本発明方法による
制御状態を示すフローチャート図である。 １−Ｗ−トポンプ、倉・・・圧縮機、丁−・インバータ
。 出願人代理人　　渚　股　　　清Fig. 1 is a system diagram showing a pump using an inverter, Fig. 2 is a characteristic diagram showing changes in discharge pressure and suction pressure O of the compressor according to the method of the present invention, and Fig. 8 is a control diagram using the method of the present invention. It is a flowchart figure which shows a state. 1-W-top pump, warehouse...compressor, top-inverter. Applicant's agent Kiyoshi Nagisa

Claims (1)

【特許請求の範囲】[Claims] ！−）ポンプの圧縮機の回転数をインバータによって制
御するインバータによる圧縮機の運転制御方法Ｋｈ−い
て、前記！−）ポンプを暖房運転から除霜運転に切換え
る際に、切換前の一定時間前記インパータの出力周波数
を低下させて前記圧縮機の吐出圧力と吸込圧力との差を
小さくシ、その後前記切換えを行なうことを特徴とする
インバータによる圧縮機Ｏ運転制御方法。! -) A compressor operation control method using an inverter, in which the rotational speed of a pump compressor is controlled by an inverter. -) When switching the pump from heating operation to defrosting operation, reduce the output frequency of the imperter for a certain period of time before switching to reduce the difference between the discharge pressure and suction pressure of the compressor, and then perform the switching. A compressor O operation control method using an inverter, characterized in that:
JP56126998A 1981-08-13 1981-08-13 Operation controlling method of compressor with inverter Pending JPS5828936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56126998A JPS5828936A (en) 1981-08-13 1981-08-13 Operation controlling method of compressor with inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56126998A JPS5828936A (en) 1981-08-13 1981-08-13 Operation controlling method of compressor with inverter

Publications (1)

Publication Number Publication Date
JPS5828936A true JPS5828936A (en) 1983-02-21

Family

ID=14949132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56126998A Pending JPS5828936A (en) 1981-08-13 1981-08-13 Operation controlling method of compressor with inverter

Country Status (1)

Country Link
JP (1) JPS5828936A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59191850A (en) * 1983-04-14 1984-10-31 松下電器産業株式会社 Method of controlling defrostation operation of air conditioner
JPS59191851A (en) * 1983-04-14 1984-10-31 松下電器産業株式会社 Method of controlling defrostation operation of air conditioner
JPS6016973U (en) * 1983-07-13 1985-02-05 三菱電機株式会社 Heat pump air conditioner
JPS60243458A (en) * 1984-05-17 1985-12-03 三菱電機株式会社 Controller for operation of compressor for air conditioner by inverter
JPS6193758U (en) * 1984-11-27 1986-06-17
US4612427A (en) * 1982-11-10 1986-09-16 Mitsubishi Denki Kabushiki Kaisha Switch
JPS62248969A (en) * 1986-04-21 1987-10-29 松下電器産業株式会社 Defrostation operation control method of air conditioner
JPH03213936A (en) * 1990-01-17 1991-09-19 Daikin Ind Ltd Operation of air-conditioner controller
CN104132488A (en) * 2014-07-24 2014-11-05 康特能源科技(苏州)有限公司 Air source heat pump defrosting device and method
US9239183B2 (en) 2012-05-03 2016-01-19 Carrier Corporation Method for reducing transient defrost noise on an outdoor split system heat pump
CN106288153A (en) * 2016-08-01 2017-01-04 广东美的暖通设备有限公司 A kind of defrosting control method of air-conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242638A (en) * 1975-10-01 1977-04-02 Sanyo Electric Co Ltd Control circuit for heat pump type air conditioner

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242638A (en) * 1975-10-01 1977-04-02 Sanyo Electric Co Ltd Control circuit for heat pump type air conditioner

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4612427A (en) * 1982-11-10 1986-09-16 Mitsubishi Denki Kabushiki Kaisha Switch
JPH0340310B2 (en) * 1983-04-14 1991-06-18
JPS59191851A (en) * 1983-04-14 1984-10-31 松下電器産業株式会社 Method of controlling defrostation operation of air conditioner
JPS59191850A (en) * 1983-04-14 1984-10-31 松下電器産業株式会社 Method of controlling defrostation operation of air conditioner
JPS6016973U (en) * 1983-07-13 1985-02-05 三菱電機株式会社 Heat pump air conditioner
JPS60243458A (en) * 1984-05-17 1985-12-03 三菱電機株式会社 Controller for operation of compressor for air conditioner by inverter
JPS6193758U (en) * 1984-11-27 1986-06-17
JPS62248969A (en) * 1986-04-21 1987-10-29 松下電器産業株式会社 Defrostation operation control method of air conditioner
JPH0550670B2 (en) * 1986-04-21 1993-07-29 Matsushita Electric Ind Co Ltd
JPH03213936A (en) * 1990-01-17 1991-09-19 Daikin Ind Ltd Operation of air-conditioner controller
US9239183B2 (en) 2012-05-03 2016-01-19 Carrier Corporation Method for reducing transient defrost noise on an outdoor split system heat pump
CN104132488A (en) * 2014-07-24 2014-11-05 康特能源科技(苏州)有限公司 Air source heat pump defrosting device and method
CN106288153A (en) * 2016-08-01 2017-01-04 广东美的暖通设备有限公司 A kind of defrosting control method of air-conditioner
CN106288153B (en) * 2016-08-01 2019-07-23 广东美的暖通设备有限公司 A kind of defrosting control method of air conditioner

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