KR20200048259A - Apparatus for controlling compressor and method for controlling compressor - Google Patents

Abstract

The present specification relates to a compressor control device and a control method thereof, which senses the temperature of a capacitor, calculates an expected lifespan of the capacitor using the capacitor temperature and element information according to the capacitor temperature, and performs control according to a result of determining the lifespan of the capacitor. The compressor control device comprises: a transformation unit including a capacitor for smoothing external power supply; a sensing unit for sensing the temperature of the capacitor; and a control unit for determining the lifespan of the capacitor and controlling the operation of a compressor according to a determination result.

Description

Compressor control device and its control method {APPARATUS FOR CONTROLLING COMPRESSOR AND METHOD FOR CONTROLLING COMPRESSOR}

The present specification relates to a compressor control device and a control method for determining the life of a DC link capacitor and performing driving control of the compressor accordingly.

The technology underlying the present invention relates to a control device (inverter) for controlling a compressor. Most devices, whether using power, use converters or inverters to increase efficiency or change voltage levels. DC link capacitors applied to power converters have applied electrolytic capacitors in terms of miniaturization, large capacity, and material cost reduction, but problems such as size, weight, cost, and reliability, and short lifespan of about 10 years, continue to be a problem. In order to solve the above problems, inverter products using film capacitors having excellent temperature characteristics and high use voltage are increasing. That is, as the lifespan of the capacitor increases, the lifespan of the power converter increases, and in the future, it becomes impossible to know which components of the power converter will expire first or malfunction.

Capacitors provided in such power converters take up a large portion of the design and manufacture of power converters due to the size and cost of the product, and due to cost and design constraints, the ease of design of the price rather than the life and performance of the capacitor takes precedence. Therefore, in many cases, an inexpensive capacitor is adopted. However, when a capacitor having poor life and performance is used in a trend in which the use time of the power conversion device is increased, there is a problem that the temperature and deterioration characteristics of the capacitor deteriorate. When the temperature and deterioration characteristics of the capacitor are deteriorated, the performance of the power converter device is deteriorated, and the life of the power converter device product itself is reduced. Since these capacitors do not have a long service life, periodic inspection and replacement are required, but there is no means or method for recognizing the life of the capacitors, and it is inevitable to continue to use the product without knowing the life of the capacitor. When the capacitor is used for a long time without recognizing the life of the capacitor, the likelihood of an internal failure / abnormality such as an electrolyte explosion increases, which may also cause a problem of reduced safety and reliability of the use of the power converter.

That is, it has been difficult to adopt a capacitor having a long life and excellent performance due to the size and cost limitation of the capacitor, and it is difficult to predict / determine the life of the capacitor, and maintenance / maintenance / inspection / use and replacement according to the life of the capacitor There was a difficult problem to achieve. This problem eventually leads to a problem that reduces the safety, reliability and usability of the power converter, and also reduces the performance and life of the power converter.

The present invention aims to improve the limitations of the prior art as described above.

That is, this specification is intended to provide a compressor control device and a control method thereof that can improve the limitations of the prior art as described above.

Specifically, it is intended to provide a compressor control device and a control method for determining the life of the capacitor provided in the control device and performing control accordingly.

In addition, it is intended to provide a compressor control device and a control method for determining whether an abnormality occurs in a capacitor and performing control accordingly.

In addition, by performing control according to the life of the capacitor, to provide a compressor control device and a control method for preventing the shortening of the life of the capacitor.

A compressor control device and a control method thereof according to the present invention for solving the above-described problems are characterized by sensing the temperature of the capacitor and determining the life of the capacitor based on the sensing result.

Specifically, the expected life of the capacitor is calculated using device information according to the temperature of the capacitor and the temperature of the capacitor, and control is performed according to a result of determining the life of the capacitor.

That is, the compressor control apparatus and a control method thereof according to the present invention includes a sensing unit for sensing the temperature of the capacitor, pre-stores the device information of the capacitor, and based on the sensing result of the sensing unit and the device information The problem as described above is solved by using a calculation means to calculate and determine the lifespan of the controller and perform control accordingly.

The above technical features are implemented by a compressor control device for controlling a compressor and a control method thereof, and the present specification provides an embodiment of each of the compressor control device and its control method using the above technical features as a problem solving means. do.

An embodiment of the compressor control apparatus according to the present invention having the above technical features as a problem solving means, including a capacitor for smoothing power input from an external power source, driving the motor of the compressor with the power smoothed from the capacitor A conversion unit that converts the driving power to output to the motor, a sensing unit that senses the temperature of the capacitor, and the conversion unit to control the conversion and output of the driving power, and the sensing unit sensing result and the previously stored And a controller that determines the life of the capacitor based on the device information of the capacitor and performs driving control of the compressor according to the determination result.

In addition, the compressor control method according to the present invention using the above technical features as a problem solving means, including a capacitor to smooth the power input from an external power source, to drive the motor of the compressor with the power smoothed from the capacitor A conversion unit that converts to a driving power supply for output to the motor, a sensing unit that senses the temperature of the capacitor, and a control unit to control the conversion and output of the driving power, and sense the sensing result and the pre-stored capacitor Sensing the life of the capacitor based on the device information, the control method of the compressor control apparatus including a control unit for controlling the driving of the compressor according to the determination result, sensing the temperature of the capacitor, the sensing result and Based on the device information of the previously stored capacitor of the capacitor The steps, and the determination result for determining the name includes the step of performing a drive control of the compressor.

The compressor control device and the control method according to the present invention as described above are applied to a compressor control device provided in the compressor, such as an inverter device that controls the motor of the compressor, a compressor including the same, or a control method of the compressor Can be. However, the technology disclosed in this specification is not limited thereto, and may be applied to and implemented in a control device for all compressors to which the technical spirit of the technology can be applied, and a compressor and a control method for the compressor.

The compressor control apparatus and the control method thereof according to the present invention has an effect of determining the life of the capacitor during operation of the device equipped with the capacitor by determining the life of the capacitor based on the temperature and device information of the capacitor.

In addition, it is possible to utilize the result of determining the life of the capacitor.

In addition, there is an effect that prevents shortening the life of the capacitor, and can be appropriately controlled / driven according to the life of the capacitor.

As a result, the compressor control device and the control method thereof according to the present invention not only improve the limitations of the prior art, but also increase the stability, ease, utility, usability and reliability of the inverter device and the power conversion device including the capacitor. It has the effect of being able to.

1 is a block diagram showing the configuration of a compressor control device according to the present invention.
2 is a block diagram showing a configuration according to a specific embodiment of the compressor control device according to the present invention.
3 is an exemplary view showing an example of device information according to the present invention.
4 is a block diagram showing a control process according to a specific embodiment of the compressor control device according to the present invention.
Figure 5 is a flow chart showing the sequence of the compressor control method of the compressor control apparatus according to the present invention.

The technology disclosed in this specification can be applied to a compressor control device and a control method thereof. However, the technology disclosed in this specification is not limited thereto, and may be applied to a control device for all compressors to which the technical spirit of the above technology can be applied, a compressor, and a control method for the compressor.

Hereinafter, exemplary embodiments disclosed herein will be described in detail with reference to the accompanying drawings, but identical or similar elements are assigned the same reference numbers regardless of reference numerals, and overlapping descriptions thereof are omitted, but embodiments disclosed herein In describing the examples, when it is determined that detailed descriptions of related well-known technologies may obscure the gist of the embodiments disclosed herein, detailed descriptions thereof will be omitted.

In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed in the specification is not limited by the accompanying drawings, and all modifications included in the spirit and technical scope of the present invention , It should be understood to include equivalents or substitutes.

First, a compressor control device (hereinafter referred to as a control device) according to the present invention will be described.

The control device (hereinafter referred to as a control device) means a control device that controls the driving of the compressor.

The control device may be a control device that controls driving of the compressor by supplying driving power to the motor of the compressor.

The control device may be a device that controls the motor using an inverter method.

That is, the control device may be an inverter that controls the driving of the compressor, or a device including the inverter.

The control device may control the driving of the compressor by controlling the driving power applied to the motor and controlling driving of the motor.

The control device 100, as shown in Figure 1, including a capacitor 111 for smoothing the power input from the external power source 10, the power smoothed in the capacitor 111, the compressor 200 ) To convert the driving power for driving the motor 210, and outputs it to the motor 210, the sensing unit 120 for sensing the temperature of the capacitor 111, and the converting unit 110 ) To control the conversion and output of the driving power.

That is, the control device 100 includes the conversion unit 110, the sensing unit 120 and the control unit 130, the conversion unit 110, the sensing unit 120 and the control unit ( 130, the driving of the compressor 200 is controlled.

In the control device 100, the control unit 130 determines the life of the capacitor 111 based on the sensing result of the sensing unit 120 and the device information of the capacitor 111 stored in advance, and the determination result According to the drive control of the compressor 200 is performed.

That is, the control device 100 determines the life of the capacitor 111 based on the sensing result and the device information, and the compressor 200 according to the determination result of determining the life of the capacitor 111 To control the driving.

Here, the driving control, performing the function of the control device 100 for controlling the driving of the compressor 200 or the motor 210, or performs the overall operation of the control device 100 including operation control Can mean

The specific configuration of the control device 100 may be as shown in FIG. 2.

The converting unit 110 means power converting means for converting power from the control device 100.

The converter 110 includes a plurality of circuit elements, and may convert power through the plurality of circuit elements.

The converter 110 may also be configured to include a plurality of power converter circuits or power converters.

For example, a converter unit for converting AC power to DC power and an inverter unit for converting DC power to AC power may be included.

The converter 110 includes the capacitor 111 for smoothing the power input from the external power supply 10 and a plurality of switching elements SW converting the power to the driving power and outputting the output to the motor 210. can do.

Here, the external power supply 10 may mean a battery, a commercial power supply, or another power supply.

The external power supply 10 may be a power supply that supplies DC power to the control device 100.

The external power supply 10 may also be a power supply that supplies AC power to the control device 100.

When the external power source 10 is a power source for supplying AC power, the converter 110 further includes a rectifying unit (not shown) for rectifying AC power input from the external power source 10 into DC power. Can be.

In this case, the rectifying unit is disposed at the front end of the capacitor 111 to transfer the rectified DC power to the capacitor 111.

The capacitor 111 may be a DC link capacitor that smoothes and stores DC power in the converter 110.

The capacitor 111 may be formed of a capacitor having excellent temperature characteristics and a high operating voltage above a certain reference.

The capacitor 111 may be made of a film capacitor.

The capacitor 111 may smoothly store and store the DC power input from the external power supply 10 to the converter 110, and transfer the smoothed DC power to the switching element 112.

The switching element 112 may be a switching means that converts the DC power smoothed from the capacitor 111 into the driving power through a switching operation and outputs the driving power to the motor 210.

The switching element 112 may be preferably an insulated gate bipolar transistor (IGBT).

The switching element 112 may be composed of a plurality of inverter circuits.

The switching element 112 may be provided according to the phase of the driving power.

For example, when the driving power applied to the motor 210 is three-phase, three pairs of switching elements, that is, six switching elements may be provided.

The switching element 112 may be controlled and operated by the control unit 130.

The switching element 112 may be switched by a control signal generated by the control unit 130.

The sensing unit 120 may be a temperature sensor that senses the temperature of the capacitor 111.

The sensing unit 120 may be attached to the outer surface of the capacitor 111 to sense the ambient temperature of the capacitor 111.

As described above, the sensing unit 120 is attached to the outer surface of the capacitor 111 to accurately sense the current ambient temperature of the capacitor 111 in real time.

The sensing unit 120 may sense a temperature change caused by the smoothed power supply while the power is smoothed in the capacitor 111.

That is, the sensing unit 120 may sense the temperature of the capacitor 111 in real time while power is smoothed from the capacitor 111.

The sensing unit 120 may sense the temperature of the capacitor 111 in real time and transmit the sensing result to the control unit 130.

The control unit 130 may be a control module that controls driving of the compressor 200 by controlling the switching operation of the switching element 112 to control the conversion and output of the driving power.

The control unit 130 may include one or more modules to control the switching operation of the switching element 112 to control the conversion and output of the driving power.

The control unit 130 includes one or more of the detection unit 131, the operation unit 132, the storage unit 133, and the generation unit 134, and controls the switching operation to control the conversion and output of the driving power By doing so, it is possible to perform drive control of the compressor 200.

The detection unit 131 may be a module that detects an operation result according to the switching operation of the switching element 112.

For example, one or more of a voltage and a current applied to the motor 210, a switching frequency of the switching element 112, and a voltage of the capacitor 111 may be detected.

The operation unit 132 may be a module that calculates and processes information processed by the control unit 130.

For example, the life of the capacitor 111 can be determined.

The storage unit 133 may be a module that stores information processed by the control unit 130.

For example, the device information may be stored.

The generation unit 134 may be a module that generates a control signal generated by the control unit 130.

For example, the control signal controlling the switching element 112 may be generated.

The control unit 130 that performs the driving control of the compressor 200 may include the sensing result and the control unit that the sensing unit 120 senses the temperature of the capacitor 111 while driving the compressor 200. The life of the capacitor 111 may be determined based on the device information of the capacitor 111 pre-stored in 130, and drive control of the compressor 200 may be performed according to the determination result.

The sensing result may include temperature information in which the sensing unit 120 senses the ambient temperature of the capacitor 111 in real time.

The device information may be specification information of the capacitor 111 pre-stored in the control unit 130.

The device information may be pre-stored in the storage unit 133 of the control unit 130.

The device information may include one or more information about the specification of the capacitor 111.

The device information, as shown in Figure 3, the usage time of the capacitor 111, the reference life of the capacitor 111, the reference temperature of the capacitor 111 and one of the highest temperature of the capacitor 111 It may include the above.

Accordingly, the control unit 130, the capacitor 111 based on one or more of the temperature information included in the sensing result and the usage time included in the device information, the reference life, the reference temperature and the highest temperature ).

The device information may be stored in the controller 130 as table data.

In the device information, information according to each temperature of the capacitor 111 may be stored in a table form.

The device information may include at least one of a usage time, a reference life, a reference temperature, and a maximum temperature according to each temperature of the capacitor 111.

As described above, a specific control process of the control device 100 including the conversion unit 110, the sensing unit 120, and the control unit 130 may be as illustrated in FIG. 4.

The sensing unit 120 may sense the temperature of the capacitor 111 in real time (P1) and transmit it to the control unit 130. The control unit 130 diagnoses whether the conversion unit 110 is abnormal based on the sensing result received from the sensing unit 120 (P2 to P4) or determines the life of the capacitor 111 ( P5 to P7) to perform the driving control (P8 and P9) according to the determination result.

The controller 130 may estimate (P2) a temperature change of the capacitor 111 based on the sensing result, and diagnose (P3 and P4) whether the converter 110 is abnormal according to the estimated result. have.

The controller 130 estimates the temperature change of the capacitor 111 based on the sensing result (P2), compares the estimated result with a preset change criterion (P3), and converts the conversion unit according to the comparison result Diagnosis (P4) of the abnormality of 110 may be performed.

The change criterion may be a temperature change criterion when the internal temperature of the converter 110 is abnormally changed due to a failure or abnormality of the converter 110.

When the temperature change is greater than or equal to the change criterion, the control unit 130 may diagnose that an abnormality has occurred in the conversion unit 110.

For example, when the change criterion is set to 50 [° C] and the temperature change is 60 [° C], it is determined that the temperature of the capacitor 111 has rapidly changed due to an abnormality occurring in the converter 110. , It may be diagnosed that an abnormality has occurred in the converter 110.

The controller 130 calculates (P6) an estimated lifespan according to the current temperature of the capacitor 111 based on the sensing result and the device information (P5), and the lifespan of the capacitor 111 according to the calculation result Can be judged (P7).

The controller 130 may check the device information according to the sensing result (P5), and calculate the expected lifespan based on the sensing result and the device information (P6).

The controller 130 checks the information corresponding to the current temperature of the capacitor 111 from the device information (P5), and calculates the expected life based on the current temperature and device information corresponding to the current temperature (P6) You can.

For example, when the current temperature is 80 [° C], information on one or more of usage time, reference life, reference temperature, and maximum temperature corresponding to the case where the temperature of the capacitor 111 is 80 [° C] in the device information is provided. By confirming (P5), the expected life may be calculated (P6) based on the current temperature and the value of device information corresponding to the current temperature.

The controller 130 may calculate the predicted life (P6) by calculating the sensing result and the device information according to the following [life calculation formula].

[Life calculation formula]

Here, the L _X means the expected life ([hr]), the L _O is the reference life, means the guarantee temperature at the maximum use temperature determined according to the manufacturing specifications of the capacitor 111, The T _O means the highest temperature, the T _X means the current temperature, and the ΔT means the temperature raised by the ripple current of the capacitor 111.

That is, the expected lifespan can be calculated according to the [Life Formula],

The control unit 130, the operation unit 132 calculates the sensing result and the value of the device information according to the [life calculation formula] (P6), to determine the life of the capacitor 111 (P7) Can be.

The control unit 130 may determine the L _X value calculated according to the [Life Formula] as the current life of the capacitor 111 (P7).

After determining (P7) the life of the capacitor 111, the controller 130 may store the determination result in the device information (P8).

That is, the controller 130 may determine the life of the capacitor 111 (P7) and store the current life of the capacitor 111 in the device information (P8).

The control unit 130 may store the current life in the device information stored in the storage unit 133 (P8).

In this way, the control device 100 for determining the life of the capacitor 111 may further include a display unit 140 for displaying the status information of the compressor 200 to the outside.

The display unit 140 may mean a display device provided in the compressor 200 or a monitoring device that is separated from the compressor 200 and monitors the driving state of the compressor 200.

When the control device 100 further includes the display unit 140, the control unit 130 may control the determination result to be displayed (P9) on the display unit 140.

The control unit 140 may control the display output of the display unit 140 so that information on the determination result is displayed on the display unit 140.

Here, the information on the determination result displayed on the display unit 140 may include one or more of a current life of the capacitor 111, or a remaining life and an expected replacement time according to the life.

The control unit 130 may control the display unit 140 to display information P9 by generating information on the replacement request of the capacitor 111 when the determination result is equal to or less than a preset life reference.

The control unit 130 may control the information on the determination result displayed externally through the display unit 140 to be differently displayed (P9) according to the degree of the determination result.

That is, the display to the outside through the display unit 140 may be differently displayed according to the life of the capacitor 111.

For example, when the lifespan remains significantly below the lifespan standard, the display to the outside may be strongly displayed, and when the lifespan does not significantly differ from the lifespan standard, the display to the outside may be weakly displayed. have.

In this way, the control unit 130 controls the information on the life of the capacitor 111 to be externally displayed (P9) through the display unit 140, thereby allowing the user of the compressor 200 to operate the capacitor 111. The lifespan and thus the current state can be informed, so that the driving of the compressor 200 can be properly controlled.

Hereinafter, a method for controlling a compressor according to the present invention (hereinafter referred to as a control method) will be described, but a part overlapping with the contents described in the above-described control device 100 will be omitted.

The control method may be a control method for controlling the compressor.

The control method may be a control method of a control device that controls the compressor.

That is, the control method may be a control method for controlling the compressor 200 of the control device 100 described above.

The control method, as shown in Figure 1, including a capacitor 111 for smoothing the power input from the external power source 10, the power smoothed in the capacitor 111, the motor of the compressor 200 Controlling the conversion unit 110 for converting the driving power to drive the 210 and outputting it to the motor 210, the sensing unit 120 for sensing the temperature of the capacitor 111, and the conversion unit 110 As a control method of the control device 100 including a control unit 130 for controlling the conversion and output of the driving power, as shown in Figure 5, sensing the temperature of the capacitor 111 (S10) ), Determining the life of the capacitor 111 based on the sensing result and the device information of the pre-stored capacitor 111 (S20) and performing driving control of the compressor 200 according to the determination result ( S30).

That is, the control device 100 senses the temperature of the capacitor 111 (S10), determines the life of the capacitor 111 based on the sensing result and the device information (S20), and determines The driving control may be performed according to the result (S30).

The sensing step S10 may be a step in which the sensing unit 120 senses the temperature of the capacitor 111 in real time.

In the sensing (S10), the temperature of the capacitor 111 is sensed in real time, and the sensing result can be transmitted to the controller 130.

In the determining (S20), the life of the capacitor 111 is based on the sensing result received from the sensing unit 120 by the control unit 130 and the device information pre-stored in the control unit 130. It may be a judging step.

In the determining (S20), the device information may be checked according to the sensing result, and the expected lifespan may be calculated based on the sensing result and the device information.

The determining step S20 checks information corresponding to the current temperature of the capacitor 111 from the device information, and calculates the expected life based on the current temperature and device information corresponding to the current temperature. Can be.

In the determining step (S20), the expected life can be calculated by calculating the sensing result and the device information according to the [life calculation formula].

In the determining step (S20), the sensing result and the value of the device information may be calculated according to the [Life Formula] to determine the life of the capacitor 111.

In the determining (S20), the estimated life value calculated according to the [Life Formula] can be determined as the current life of the capacitor 111.

In the step of performing the driving control (S30), the controller 130 controls the performance of the operation of the control device 100 based on the result of determining the life of the capacitor 111 in the determining (S20). It may be a step.

In the step (S30) of performing the driving control, the determination result may be stored in the device information.

In the step (S30) of performing the driving control, the determination result may be displayed on the display unit 140.

In the step of performing the driving control (S30), information including one or more of a current life of the capacitor 111, or a remaining life and an expected replacement time according to the life, is controlled to be displayed on the display unit 140. You can.

In the step of performing the driving control (S30), when the determination result is equal to or less than a preset life reference, information on a replacement request of the capacitor 111 may be generated and controlled to be displayed on the display unit 140.

In the step of performing the driving control (S30), information on the determination result displayed externally through the display unit 140 may be controlled to be displayed differently according to the degree of the determination result.

Although specific embodiments of the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the claims to be described later, but also by the claims and equivalents.

As described above, although the present invention has been described by limited embodiments and drawings, the present invention is not limited to the above embodiments, and various modifications and modifications from these descriptions can be made by those skilled in the art to which the present invention pertains. Deformation is possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalents or equivalent modifications thereof will be said to fall within the scope of the spirit of the present invention.

10: external power supply 100: control unit
110: converter 111: capacitor
112: switching element 120: sensing unit
130: control unit 140: display unit
200: compressor 210: motor

Claims (11)

In the compressor control device,
A converter for converting the power smoothed from the capacitor into drive power for driving the motor of the compressor, and outputting the smoothed power from the capacitor to the motor, including a capacitor for smoothing power input from an external power source;
A sensing unit sensing the temperature of the capacitor; And
Control the converter to control the conversion and output of the driving power supply, and determine the life of the capacitor based on the sensing result of the sensing unit and device information of the pre-stored capacitor, and drive control of the compressor according to the determination result Compressor control device comprising a; control unit to perform. According to claim 1,
The sensing unit,
Compressor control device, characterized in that attached to the outer surface of the capacitor to sense the ambient temperature of the capacitor. According to claim 1,
The sensing unit,
Compressor control device, characterized in that for sensing the temperature change by the smoothed power supply while the power supply is smoothed in the capacitor. According to claim 1,
The device information,
Compressor control device comprising at least one of the use time of the capacitor, the reference life of the capacitor, the reference temperature of the capacitor and the highest temperature of the capacitor. According to claim 1,
The control unit,
Compressor control device, characterized in that for estimating the temperature change of the capacitor on the basis of the sensing result, diagnoses whether the conversion unit is abnormal according to the estimation result. The method of claim 5,
The control unit,
When the temperature change is more than a predetermined change standard,
Compressor control device for diagnosing that an abnormality has occurred in the conversion unit. According to claim 1,
The control unit,
Compressor control device, characterized in that for calculating the expected life according to the current temperature of the capacitor based on the sensing result and the device information, and determines the life of the capacitor according to the calculation result. According to claim 1,
The control unit,
Compressor control device, characterized in that for storing the determination result in the device information The method according to any one of claims 1 to 8,
Further comprising; a display unit for displaying the status information of the compressor to the outside,
The control unit,
Compressor control device characterized in that the control to display the determination result to be displayed on the display unit. The method of claim 9,
The control unit,
When the judgment result is less than a preset lifespan standard,
Compressor control device, characterized in that for generating information on the replacement request of the capacitor to be displayed on the display unit. A converter for converting the power smoothed from the capacitor into drive power for driving the motor of the compressor, and outputting the smoothed power from the capacitor to the motor, including a capacitor for smoothing power input from an external power source;
A sensing unit sensing the temperature of the capacitor; And
Control the converter to control the conversion and output of the driving power supply, and determine the life of the capacitor based on the sensing result of the sensing unit and device information of the pre-stored capacitor, and drive control of the compressor according to the determination result In the control method of a compressor control apparatus comprising a;
Sensing the temperature of the capacitor;
Determining a lifespan of the capacitor based on a sensing result and pre-stored device information of the capacitor; And
And performing driving control of the compressor according to the determination result.

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