CN103983060B - Control method and system for multiple variable frequency compressors - Google Patents

Control method and system for multiple variable frequency compressors Download PDF

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Publication number
CN103983060B
CN103983060B CN201410181532.XA CN201410181532A CN103983060B CN 103983060 B CN103983060 B CN 103983060B CN 201410181532 A CN201410181532 A CN 201410181532A CN 103983060 B CN103983060 B CN 103983060B
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unit
capacity information
master control
control borad
compressor
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CN103983060A (en
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王文灿
金国华
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Abstract

The invention provides a control method of a plurality of variable frequency compressors, wherein the variable frequency compressors exist in the same unit, and the control method comprises the following steps: s1, presetting capacity information of the unit after the unit is electrified; s2, the main control board judges whether the received capacity information of the unit is consistent with the preset capacity information of the unit, if so, the unit is normally started; if not, the unit sends out an audible and visual alarm signal, and the unit is not started. The invention also provides a system. According to the control method and the control system for the multiple compressors, the main control board judges that the received capacity information of the unit is consistent with the preset capacity information of the unit and then controls the unit to start normally, so that the wiring correctness between the compressors and the corresponding compressor driving plates is ensured, the damage of the compressors is prevented, and the stability of the unit operation is ensured.

Description

The control method of multiple frequency-changeable compressors and system
Technical field
The present invention relates to refrigerating field, particularly relate to control method and the system of a kind of multiple frequency-changeable compressor.
Background technology
When unit exists multiple frequency-changeable compressor, connection error often occurs between different compressors and corresponding driven compressor plate.Such as, being connected on the driving plate of compressor 2 by compressor 1, the driving plate that compressor 2 is connected to compressor 1 is first-class.The frequency driving plate output that so can cause compressor occurs abnormal, causes the damage of compressor, and then causes the problems such as the fluctuation of service of unit, poor refrigerating efficiency.
Summary of the invention
Present situation in view of prior art, it is an object of the invention to provide the control method of a kind of multiple frequency-changeable compressor and system, avoid the connection error between compressor and corresponding driven compressor plate, it is therefore prevented that the damage of compressor, it is ensured that the stability of unit operation.
For achieving the above object, the present invention adopts the following technical scheme that
The control method of a kind of multiple frequency-changeable compressor, multiple frequency-changeable compressors are present in same unit, comprise the steps:
S1, unit preset the capacity information of unit after powering on;The capacity information of described unit includes the compressor model that the address of each driven compressor plate is corresponding with each driven compressor plate described;
S2, master control borad judge that whether the capacity information of unit received is consistent with the capacity information of default unit, if so, then described unit normal boot-strap;If it is not, then described unit sends sound and light alarm signal, described unit is not started shooting.
Wherein in an embodiment, described step S2 comprises the steps:
Whether the address of each driven compressor plate that the judgement of S21, described master control borad receives is consistent with the preset address of each driven compressor plate described, if so, then enters step S22;If it is not, then described unit sends sound and light alarm signal;
S22, described master control borad judge that whether corresponding with each driven compressor plate described the model of the compressor that each driven compressor plate described of receiving is corresponding preset compressor model be consistent, if so, then described unit normal boot-strap;If it is not, then described unit sends sound and light alarm signal, described unit is not started shooting.
Wherein in an embodiment, described step S1 also comprises the steps:
The capacity information of described default unit is saved in the first memory element by described master control borad.
Wherein in an embodiment, also comprise the steps: before described step S2
Described master control borad detects the capacity information of the unit that each driven compressor plate described transmits in real time, and is saved in the second memory element by the capacity information of the unit driving plate transmission of each compressor described.
Present invention also offers a kind of system, adopt the control method of multiple frequency-changeable compressors described in any of the above-described item,
Including master control borad, driven compressor plate and compressor;The quantity of described compressor and described driven compressor plate is multiple, and multiple described compressors are arranged with multiple described driven compressor plate one_to_one corresponding, and multiple described driven compressor plates electrically connect with described master control borad respectively;
Described driven compressor plate is for driving the described compressor of correspondence, and sends the capacity information of unit to described master control borad;Described master control borad judges that whether the capacity information of the unit received is consistent with the capacity information of the unit preset.
Wherein in an embodiment, also including display lamp, described display lamp electrically connects with described master control borad, and described display lamp is for lighting when the capacity information of the unit that described master control borad receives is inconsistent with the capacity information of the unit preset.
Wherein in an embodiment, also including buzzer, described buzzer electrically connects with described master control borad, and described buzzer is for the inconsistent alarm of capacity information of the capacity information of unit received at described master control borad and the unit preset.
Wherein in an embodiment, described master control borad being provided with the first memory element, described first memory element is for storing the capacity information of described default unit.
Wherein in an embodiment, described master control borad is additionally provided with the second memory element;Described second memory element is for storing the capacity information of the unit that described master control borad receives.
The invention has the beneficial effects as follows:
The control method of multiple compressors of the present invention and system, judge that the capacity information of unit received controls unit normal boot-strap after consistent with the capacity information of default unit again by master control borad, ensure that the correctness of wiring between compressor and corresponding driven compressor plate, prevent the damage of compressor, it is ensured that the stability of unit operation.
Accompanying drawing explanation
Fig. 1 is the flow chart of control method one embodiment of multiple frequency-changeable compressors of the present invention;
Fig. 2 is the structured flowchart of system one embodiment of the present invention.
Detailed description of the invention
In order to make technical scheme clearly, below in conjunction with accompanying drawing, control method and system to multiple frequency-changeable compressors of the present invention are described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain that the present invention is not intended to limit the present invention.
Referring to Fig. 1 to Fig. 2, being illustrated in figure 1 the flow chart of control method one embodiment of multiple frequency-changeable compressors of the present invention, multiple frequency-changeable compressors are present in same unit, and control method comprises the steps:
S1, unit preset the capacity information of unit after powering on.After unit powers on, preset the capacity information of unit by the operation button on master control borad.Preferably, the capacity information of unit includes the compressor model that the address of each driven compressor plate is corresponding with each driven compressor plate.Namely, after unit powers on, first pass through master control borad to each driven compressor plate distribution address, and specify the compressor model that each driven compressor plate is corresponding.It should be understood that, the address of driven compressor plate can be physical address or logical address.
This process is exemplified below:
S2, judge that whether the capacity information of unit received is consistent with the capacity information of default unit, if so, then unit normal boot-strap;If it is not, then unit sends sound and light alarm signal, unit is not started shooting.Now, unit can not normal boot-strap, it is necessary to reexamine whether driven compressor plate mistake occurs with the line of corresponding compressor.So when compressor occurring with the situation of corresponding driven compressor plate connection error, machine group alarm and do not allow unit to start shooting, can find timely and change connection error, it is ensured that the correct connection between compressor and corresponding driven compressor plate, and then ensure the stable operation of unit.
Judge that the capacity information of unit received controls unit normal boot-strap after consistent with the capacity information of default unit again by master control borad, ensure that the correctness of wiring between compressor and corresponding driven compressor plate, prevent the damage of compressor, it is ensured that the stability of unit operation.
As a kind of embodiment, step S2 comprises the steps:
Whether the address of each driven compressor plate that the judgement of S21, master control borad receives is consistent with the preset address of each driven compressor plate, if so, then enters step S22;If it is not, then unit sends sound and light alarm signal.
Such as, the address of the driven compressor plate 1 that master control borad receives is 0002, the preset address of driven compressor plate 1 is 0001, then the judged result of master control borad is that the address receiving driven compressor plate 1 is not mated with the preset address of driven compressor plate 1, then unit sends sound and light alarm signal.The situation of other driven compressor plates is similar to the situation of driven compressor plate 1, repeats no more herein.
If the address of the driven compressor plate 1 that master control borad receives also is 0001, then the judged result of master control borad is that the address of the driven compressor plate 1 received is mated with the preset address of driven compressor plate 1.If the address of driven compressor plate 1~N that master control borad receives all matches with its preset address, then enter step S22.
S22, master control borad judge that whether corresponding with each driven compressor plate the model of the compressor that each driven compressor plate of receiving is corresponding preset compressor model be consistent, if so, then unit normal boot-strap;If it is not, then unit sends sound and light alarm signal, unit is not started shooting.
Such as, the compressor model of driven compressor plate 1 correspondence that master control borad receives is compressor 2, and the preset compressor model of driven compressor plate 1 is compressor 1, then the judged result of master control borad is that compressor model that the driven compressor plate received the is corresponding compressor model corresponding with the driven compressor plate preset is inconsistent, and unit sends sound and light alarm signal.The situation of other driven compressor plates is similar to the situation of driven compressor plate 1, repeats no more herein.
If the compressor model of driven compressor plate 1 correspondence that master control borad receives is compressor 1, then the judged result of master control borad is the compressor model coupling that compressor model that the driven compressor plate received is corresponding is corresponding with the driven compressor plate preset.If the compressor model corresponding for driven compressor plate 1~N that master control borad receives all matches with its compressor model preset, then unit normal boot-strap.
In the present embodiment, the sound and light alarm signal that unit sends is that display lamp is lighted, buzzer warning.Display lamp can be LED light, and buzzer can also is that other sound-controlled apparatuses.
Preferably, step S1 also comprises the steps: that the capacity information of default unit is saved in the first memory element by master control borad.Preferably, also comprise the steps: before step S2 that master control borad detects the capacity information of the unit that each driven compressor plate transmits in real time, and the capacity information of the unit driving plate transmission of each compressor is saved in the second memory element.
So, when performing step S2, master control borad has only to read the capacity information of default unit from the first memory element, reads the capacity information of the unit that each driven compressor plate received transmits, then compare and judge from the second memory element.Further ensure the accuracy that compressor connects with corresponding driven compressor plate, it is ensured that the stability of unit operation.
As in figure 2 it is shown, the invention still further relates to a kind of system based on same inventive concept, adopting the control method of multiple frequency-changeable compressors of any of the above-described technical scheme, system includes master control borad 100, driven compressor plate 200 and compressor 300.Wherein, compressor 300 is frequency-changeable compressor.Compressor 300 is identical with the quantity of driven compressor plate 200 and is multiple, and multiple compressors 300 are arranged with multiple driven compressor plate 200 one_to_one corresponding, and multiple driven compressor plate is respectively connecting to master control borad 100.
Driven compressor plate 200 is for driving the compressor 300 of correspondence, and sends the capacity information of unit to master control borad.Whether master control borad 100 is consistent with the capacity information of default unit for the capacity information judging the unit received, if so, then unit normal boot-strap;If it is not, then unit sends sound and light alarm signal, unit is not started shooting.
As a kind of embodiment, also include display lamp 400 and buzzer 500, it is preferable that display lamp 400 is LED.Wherein, display lamp 400 electrically connects with master control borad 100, and buzzer 500 electrically connects with master control borad 100.Display lamp is for lighting when the capacity information of the unit that master control borad receives is inconsistent with the capacity information of unit preset, and buzzer is for the inconsistent alarm of capacity information of the capacity information of unit received at master control borad and the unit preset.When the capacity information of the unit namely received when master control borad is inconsistent with the capacity information of the unit preset, display lamp is lit, buzzer warning.The capacity information of unit includes the compressor model that the address of driven compressor plate is corresponding with driven compressor plate.So provide the judgement of vision and audition for operator so that operator can check timely and line fault improve man-machine interaction.
Preferably, master control borad is provided with the first memory element and the second memory element.Wherein, the first memory element is for storing the capacity information of default unit, and the second memory element is for storing the capacity information of the unit that master control borad receives.
So, master control borad has only to read the capacity information of default unit from the first memory element, reads the capacity information of the unit that each driven compressor plate received transmits, then compare and judge from the second memory element.Further ensure the accuracy that compressor connects with corresponding driven compressor plate, it is ensured that the stability of unit operation.
The control method of multiple compressors of the present invention and system, judge that the capacity information of unit received controls unit normal boot-strap after consistent with the capacity information of default unit again by master control borad, ensure that the correctness of wiring between compressor and corresponding driven compressor plate, prevent the damage of compressor, it is ensured that the stability of unit operation.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (9)

1. a control method for multiple frequency-changeable compressors, multiple frequency-changeable compressors are present in same unit, it is characterised in that comprise the steps:
S1, unit preset the capacity information of unit after powering on;The capacity information of described unit includes the compressor model that the address of each driven compressor plate is corresponding with each driven compressor plate described;
S2, master control borad judge that whether the capacity information of unit received is consistent with the capacity information of default unit, if so, then described unit normal boot-strap;If it is not, then described unit sends sound and light alarm signal, described unit is not started shooting.
2. the control method of multiple frequency-changeable compressor according to claim 1, it is characterised in that described step S2 comprises the steps:
Whether the address of each driven compressor plate that the judgement of S21, described master control borad receives is consistent with the preset address of each driven compressor plate described, if so, then enters step S22;If it is not, then described unit sends sound and light alarm signal;
S22, described master control borad judge that whether corresponding with each driven compressor plate described the model of the compressor that each driven compressor plate described of receiving is corresponding preset compressor model be consistent, if so, then described unit normal boot-strap;If it is not, then described unit sends sound and light alarm signal, described unit is not started shooting.
3. the control method of multiple frequency-changeable compressor according to claim 2, it is characterised in that described step S1 also comprises the steps:
The capacity information of described default unit is saved in the first memory element by described master control borad.
4. the control method of multiple frequency-changeable compressor according to claim 2, it is characterised in that also comprise the steps: before described step S2
Described master control borad detects the capacity information of the unit that each driven compressor plate described transmits in real time, and is saved in the second memory element by the capacity information of the unit driving plate transmission of each compressor described.
5. a system, the control method of the employing multiple frequency-changeable compressors described in any one of claim 1-4, it is characterised in that:
Including master control borad, driven compressor plate and compressor;The quantity of described compressor and described driven compressor plate is multiple, and multiple described compressors are arranged with multiple described driven compressor plate one_to_one corresponding, and multiple described driven compressor plates electrically connect with described master control borad respectively;
Described driven compressor plate is for driving the described compressor of correspondence, and sends the capacity information of unit to described master control borad;Whether described master control borad is consistent with the capacity information of the unit preset for the capacity information judging the unit received.
6. system according to claim 5, it is characterised in that:
Also including display lamp, described display lamp electrically connects with described master control borad, and described display lamp is for lighting when the capacity information of the unit that described master control borad receives is inconsistent with the capacity information of the unit preset.
7. system according to claim 6, it is characterised in that:
Also including buzzer, described buzzer electrically connects with described master control borad, and described buzzer is for the inconsistent alarm of capacity information of the capacity information of unit received at described master control borad and the unit preset.
8. system according to claim 5, it is characterised in that:
Being provided with the first memory element on described master control borad, described first memory element is for storing the capacity information of described default unit.
9. system according to claim 5, it is characterised in that:
Described master control borad is additionally provided with the second memory element;Described second memory element is for storing the capacity information of the unit that described master control borad receives.
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Publication number Priority date Publication date Assignee Title
CN105156315B (en) * 2015-08-04 2020-02-04 广东美的暖通设备有限公司 Detection system, device and detection method suitable for multiple compressors
CN110094332B (en) * 2019-05-10 2020-05-15 珠海格力电器股份有限公司 Automatic addressing control method and device for compressor and multi-compressor system
CN112556122A (en) * 2020-12-15 2021-03-26 佛山市顺德区美的电子科技有限公司 Air conditioning system, control method thereof and outdoor unit

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