KR102078608B1 - Power measurement system for portable - Google Patents

Abstract

Disclosed is a portable power measurement system capable of calculating the amount of power and power factor by measuring the voltage and current of a three-phase AC power supply. The portable power measurement system includes a case formed in a rectangular parallelepiped shape and made of aluminum; A measurement module provided to be accommodated in the case and measuring a magnitude and a waveform of a three-phase AC power supplied from the outside and a magnitude and a waveform of a current; And provided to be accommodated inside the case, and connected to the measurement module to calculate the amount of power and the power factor of the three-phase AC power based on the magnitude and waveform of the measured three-phase AC power and the magnitude and waveform of the current. It includes a control module. This not only measures the voltage and current of the three-phase AC power supply, and based on the measured results, not only provides the amount of power and the power factor, but also adds a noise filter and a power factor correction circuit to the circuit under the same conditions as the measured results. By providing simulation information including information on the amount of power and power factor which is improved compared to before operation, when provided and operated, when the noise filter and power factor correction circuit are installed in accordance with the conventional configuration, the efficiency of the AC power source is increased. Due to poorly improved or unnecessarily high quality components, installation costs can be avoided.

Description

Portable power measurement system {Power measurement system for portable}

The present invention relates to a portable power measurement system, and more particularly, to a portable power measurement system capable of calculating the amount of power and power factor by measuring the voltage and current of a three-phase AC power supply.

Three-phase AC power supply has a more stable and stronger current than single-phase 220V used in general homes, and has the advantage that the number of wires to the outlet is higher than that of single-phase and ensures the stability of power supply. Applied to products that use a lot of power. It is widely used in offices and factories.

Like the single-phase AC power source, the three-phase AC power source generates noise in the process of being supplied to various electronic and electrical products, causing unnecessary power consumption, shortening the lifespan of the electronic and electrical products, and There is a problem that the efficiency of the AC power supply is lowered.

To solve this problem, add noise filter to AC power supply line to supply AC power to reduce noise of AC power and improve current waveform or add power factor correction circuit to reduce phase difference between voltage and current. In order to improve the efficiency of the AC power supply, it is necessary to improve the efficiency of the AC power supply. However, when installing according to the general configuration, the efficiency of the AC power supply may not be properly improved or the installation cost may increase due to the unnecessarily high quality components. Can cause problems.

Therefore, prior to installing a configuration that improves the efficiency of the AC power supply in the AC power supply line, a component that will effectively improve the efficiency of the AC power when additionally installed in the currently installed AC power supply line with reference to the measured voltage and current. It is necessary to find a way to predict the problem.

Korea Patent Registration No. 10-1572627 (name of invention: power saving system) Korean Utility Model Registration No. 20-0198074 (Invention name: Power factor discriminator)

The present invention has been made to solve the above problems, an object of the present invention is to measure the voltage and current of a three-phase AC power supply, and based on the measured results, as well as providing an amount of power and a power factor, When a noise filter and a power factor correction circuit are installed and operated in a circuit having the same condition as the measured result, the portable power measurement system provides simulation information including information on the amount of power and the power factor which are improved compared to before operation. Is in.

Portable power measurement system according to an embodiment of the present invention for achieving the above object is formed in a rectangular parallelepiped shape, the case is provided with an aluminum material; A measurement module provided to be accommodated in the case and measuring a magnitude and a waveform of a three-phase AC power supplied from the outside and a magnitude and a waveform of a current; And provided to be accommodated inside the case, and connected to the measurement module to calculate the amount of power and power factor of the three-phase AC power based on the magnitude and waveform of the measured three-phase AC power and the magnitude and waveform of the current. It includes a control module.

In addition, the measurement module, while measuring the magnitude and waveform and current magnitude and waveform of the voltage of the three-phase AC power source, and separately measure the voltage and current of the R-phase AC power source, S-phase AC power source and T-phase AC power source The control module, based on the magnitude and the current magnitude of each voltage and the magnitude of the respective voltages and waveforms of the respective measured voltage from the measuring module, and the transfer of the R phase The amount of power of the AC power source, the S phase AC power source and the T phase AC power source is separately calculated, and the R phase AC power source, the S phase AC power source, and the T phase AC power source are based on the waveforms of the respective voltages and currents transmitted. The power factor of can be calculated separately.

The measurement module is individually connected to an R-phase AC power supply line, an S-phase AC power supply line, and a T-phase AC power supply line to supply currents of the R-phase AC power supply, S-phase AC power supply, and T-phase AC power supply. The R-phase AC power supply and the S-phase power supply are separately connected to the current measurement module and the R-phase AC power supply line, the S-phase AC power supply line, the T-phase AC power supply line, and the N-phase AC power supply line, respectively. It may be configured as a voltage measuring module for measuring the voltage of the AC power supply and T phase AC power supply separately.

In addition, the portable power measurement system according to the present embodiment is provided to be accommodated inside the case, the noise is connected to the measurement module, the noise of the AC power provided in the circuit to which the voltage and current of a certain intensity is supplied When the power factor correction circuit operates such that the phase difference between the filter and the voltage and the current is reduced, the simulation information generated in such a manner that the amount of power and the power factor which is improved compared to before the noise filter and the power factor correction circuit are operated is measured with the voltage. It may further include a storage module that is stored according to the strength of the current stored in plurality.

The control module, when the amount of power and the power factor of the R-phase AC power, the S-phase AC power, and the T-phase AC power are separately calculated, simulated information having a condition equal to the strength of voltage and current among the plurality of stored simulation information. While determining, it is possible to determine the simulation information of the same conditions for each AC power source individually.

The control module may be configured to separately output power amounts and power factors of the calculated R-phase AC power, S-phase AC power, and T-phase AC power, respectively, and determine the power amount and power factor output for each AC power. The simulated information may be output.

The simulation information may include a plurality of noise filters and a power factor correction circuit in a circuit to which a voltage and a current having a specific intensity are supplied, and the plurality of noise filters and the plurality of power factor correction circuits are connected in parallel. In this case, the plurality of noise filters and the plurality of power factor correction circuits are operated to include information on the amount of power and the power factor which are compared and improved before the operation, wherein the plurality of noise filters and the plurality of power factor correction circuits are included. From the case of non-operation, each of the noise filters and the power factor correction circuits may include all the information measured separately for the amount of power and the power factor to be improved each time the number of operations of the plurality of power factor correction circuits increases.

In addition, the control module, if the power amount and power factor of the R-phase AC power source, S-phase AC power source and T-phase AC power source are separately calculated, simulation of the same condition as the intensity of voltage and current among the plurality of stored simulation information Information is separately determined for each of the AC power sources, and the plurality of noise filters and the plurality of power factor correction circuits are not used when the plurality of noise filters and the plurality of power factor correction circuits do not operate. When the number of operations is increased by one operation, when all the measured information on the power factor and the power factor which are improved are included, the power factor correction circuit is further operated one by one, so that the improved power factor is first included in the preset power factor compensation range. Power amount and power factor improved by the noise filter and power factor correction circuit in operation at the time of arrival The information about may be determined and output.

This not only measures the voltage and current of the three-phase AC power supply, and based on the measured results, not only provides the amount of power and the power factor, but also adds a noise filter and a power factor correction circuit to the circuit under the same conditions as the measured results. By providing simulation information including information on the amount of power and power factor which is improved compared to before operation, when provided and operated, when the noise filter and power factor correction circuit are installed in accordance with the conventional configuration, the efficiency of the AC power source is increased. Due to poorly improved or unnecessarily high quality components, installation costs can be avoided.

1 is a view for explaining the configuration of a portable power measurement system according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a generation process of simulation information stored in a storage module of a portable power measurement system according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a process of outputting power amount, power factor, and simulation information of a three-phase AC power supply using a portable power measurement system according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in more detail with respect to the present invention. The embodiments introduced below are provided as an example to sufficiently convey the spirit of the present invention to those skilled in the art to which the present invention pertains. The invention is not limited to the embodiments described below and may be embodied in other forms.

1 is a view for explaining the configuration of a portable power measurement system according to an embodiment of the present invention.

The portable power measuring system according to the present embodiment measures the voltage and current of the three-phase AC power supply, provides the amount of power and the power factor based on the measured result, and furthermore, the circuit of the same condition as the measured result. When the noise filter 10 and the power factor correction circuit 20 are provided and operated, the noise filter 10 and the power factor correction circuit 20 are provided to provide simulation information including information on the amount of power and the power factor which are improved compared to before the operation.

To this end, the portable power measurement system may be composed of a case (not shown), the measurement module 100, the control module 200, the storage module 300, the output module 400, and the power supply module 500. have.

The case (not shown) may be formed in a rectangular parallelepiped shape, and may be made of aluminum to accommodate components of the portable power measurement system, and a handle may be provided at one side.

The measurement module 100 is provided for measuring the magnitude and waveform of the voltage of the three-phase AC power supplied from the outside, and the magnitude and waveform of the current.

Specifically, the measurement module 100 is provided to be accommodated inside the case, and measures the magnitude and waveform and the magnitude and waveform of the voltage of the three-phase AC power supply, but the R phase AC power source, the S phase AC power source, and the T phase AC power source. The voltage and current can be measured separately.

To this end, the measurement module 100 is individually connected to the R-phase AC power supply line, the S-phase AC power supply line and the T-phase AC power supply line, so that the R-phase AC power supply, the S-phase AC power supply, and the T-phase AC power supply. It is connected to the current measurement module 110 and the R-phase AC power supply line, S-phase AC power supply line, T-phase AC power supply line and N-phase AC power supply line to individually measure the current of the R-phase AC It may be configured as a voltage measuring module 120 for separately measuring the voltage of the power source, the S-phase AC power source and the T-phase AC power source.

The control module 200 is provided to calculate the amount of power and power factor of the three-phase AC power based on the magnitude and waveform of the measured three-phase AC power and the magnitude and waveform of the current.

Specifically, the control module 200 is provided to be accommodated inside the case, is connected to the measurement module 100, the magnitude and waveform of each voltage measured separately from the measurement module 100 and each current magnitude When the and waveforms are transmitted, the amount of power of the R-phase AC power source, the S-phase AC power source, and the T-phase AC power source is individually calculated based on the magnitudes and the magnitudes of the voltages. Power factor of R phase AC power, S phase AC power and T phase AC power can be calculated separately based on the waveform of.

In this case, the control module 200 receives the measured value of the voltage and current obtained through the current measuring module 110 and the voltage measuring module 120 as an analog signal, and digitizes the received analog signal and digitizes the voltage. The amount of power may be calculated by multiplying the magnitude value of the current and the magnitude value of the current, and the power factor may be calculated by calculating the phase difference of each analog signal with voltage and current.

When the noise filter 10 and the power factor correction circuit 20 are provided and operated in a circuit to which a voltage and a current having a specific intensity are supplied, the storage module 300 may include the noise filter 10 and the power factor correction circuit 20. It is designed to store simulation information generated by measuring the amount of power and power factor which is improved compared to before operation.

That is, the storage module 300 is a noise filter 10 and a power factor correction in a simulation environment in which a noise filter 10 and a power factor correction circuit 20 are provided and operated in a circuit to which a voltage and a current having a specific intensity are supplied. Due to the operation of the circuit 20, the simulation information may be stored by allowing the simulation information to include the measured power amount and the power factor measured in comparison with the previous operation.

In addition, the storage module 300, in a simulation environment in which the voltage and current are set differently, stores simulation information including information on the amount of power and the power factor which are measured differently according to the voltage and the current, and simulates according to the voltage and the current. By allowing the environment to be distinguished, the control module 200 may determine the simulation environment to which a specific voltage and current are supplied from the stored simulation information.

Here, the noise filter 10 may be provided with a capacitor which is a capacitive load in which the current waveform of the current flowing in the AC power supply line is improved to be a waveform close to the sine wave, and the voltage phase is earlier than the phase of the current. .

In addition, the noise filter 10 not only filters the noise of the AC power supply, but also the voltage of the AC power supply when the power factor becomes worse because the phase difference between the voltage and the current is ahead of the voltage phase due to the inductive load. It is possible to reduce the phase difference of overcurrent.

In order to reduce the phase difference between the voltage and the current of the three-phase AC power source, the power factor correction circuit 20 may be provided with an inductor which is an inductive load in which the phase of the current precedes the phase of the voltage.

In addition, the power factor correction circuit 20 has a phase difference between the voltage and the current of the three-phase AC power supply when the power factor becomes worse because the phase of the voltage precedes the phase of the current by the capacitive load. Not only can the phase difference be reduced, but the generation of harmonics can be suppressed and the overcurrent can be prevented from being generated at the start of supply of AC power.

The output module 400 is provided to output the voltage, current, power amount, power factor, and simulation information of the AC power source.

Specifically, the output module 400 is provided to be accommodated inside the case, and is connected to the control module 200 so that the voltage and current measured by the measuring module 100 are individually outputted for each AC power source. Can be.

In addition, the output module 400, the power amount and power factor of the R-phase AC power source, S-phase AC power source and T-phase AC power source calculated by the control module 200 is to be individually output for each AC power source, The determined simulation information may be output together with the amount of power output and the power factor output for each AC power source.

The power supply module 500 may be implemented as an SMPS to supply AC power to components of the portable power measurement system including the control module 200.

2 is a diagram illustrating a generation process of simulation information stored in the storage module 300 of the portable power measurement system according to an exemplary embodiment of the present invention.

Simulation information stored in the storage module 300 is to supply a voltage and a current of a specific intensity to a circuit provided separately as shown in Figure 2, a plurality of noise filter 10 and a plurality of power factor correction circuit 20 When the noise filter 10 and the power factor correction circuit 20 operate in a situation where P is provided in parallel, the measured value of the amount of power and the power factor which is improved compared to before the operation of the noise filter 10 and the power factor correction circuit 20 are measured. This means information included.

Specifically, in order to generate simulation information, a circuit separately provided as shown in FIG. 2 reduces a phase difference between a voltage and a current and a noise filter 10 for filtering noise of an AC power source to a circuit to which an AC power source is supplied. A plurality of power factor correction circuits 20 are provided, but each noise filter 10 and each power factor correction circuit 20 are matched with each other so that the matched noise filter 10 and the power factor correction circuit 20 are identical to each other. It may be implemented to determine whether the operation by the switch circuit 30.

That is, the simulation information includes a plurality of noise filters 10 and a power factor correction circuit 20 provided in a circuit to which a voltage and a current having a specific intensity are supplied, and the plurality of noise filters 10 and a plurality of power factor correction circuits 20 are provided. The zero switch circuit 40 is turned on when the zero switch circuit 40 is turned on in a situation in which the plurality of noise filters 10 and the plurality of power factor correction circuits 20 do not operate. The number of specific switch circuits 30 that are turned off and on increases by one, so that the amount of power improved each time the number of operations of the noise filter 10 and the power factor correction circuit 20 increases by one Individually measured information about power factor may be included.

Specifically, for example, a plurality of noise filters 10 and a power factor correction circuit 20 are provided in a circuit to which a voltage and a current of a specific intensity are supplied, but the plurality of noise filters 10 and the plurality of power factor correction circuits 20 are provided. ) Are connected to each other in parallel, the zero switch circuit 40 is turned on (on), when the plurality of noise filter 10 and the plurality of power factor correction circuit 20 does not operate, by measuring the amount of power and power factor The first simulation information is generated, the zero switch circuit 40 is turned off, and the first switch circuit 30 is turned on so that the first noise filter 10 and the first power factor correction circuit 20 are generated. Is operated, the second simulation information is generated by measuring the amount of power and the power factor, and the second switch circuit 30 is turned on while the first switch circuit 30 is on. 2 When the noise filter 10 and the second power factor correction circuit 20 are further operated, the power amount and power factor The third simulation information may be generated.

In the state where the first switch circuit 30 and the second switch circuit 30 are on, the third switch circuit 30 is turned on to compensate for the third noise filter 10 and the third power factor correction. When the circuit 20 is further operated, the fourth simulation information may be generated by measuring the amount of power and the power factor.

The simulation information stored in the storage module 300 includes all of the first to fourth simulation information, and the noise filter 10 and the power factor correction circuit for generating the first to fourth simulation information, respectively. Information on the number of operations of 20) is also included. When the control module 200 loads specific simulation information, several noise filters 10 and the power factor correction circuit 20 operate in a situation of generating specific simulation information. You can check if it was.

When the specific simulation information is output through the output module 400, the control module 200 generates simulation information generated in a situation in which some noise filter 10 and the power factor correction circuit 20 operate. Additional information that can be confirmed whether or not through the output module 400, may be provided.

In addition, the control module 200 compensates the plurality of noise filters 10 and the power factor correction to the simulation information determined by the simulation information generated under the same condition as the magnitude of the measured voltage and current among the plurality of stored simulation information. When the number of operations of the plurality of noise filters 10 and the plurality of power factor correction circuits 20 increases from the case where the circuit 20 does not operate, the information measured individually on the amount of power and the power factor which are improved are all If included, if a certain number of noise filter 10 and the power factor correction circuit 20 are operated to determine that the power factor which is improved compared to before the operation reaches a preset power factor compensation range, The noise filter 10 and the power factor correction circuit 20 operate, and simulation information including the amount of power and the power factor which are improved compared to before the operation is output through the output module 400. To make sure it is

When the power factor correction circuit 20 additionally operates one by one and measures an improved amount of power and power factor, the control module 200 may measure the first and second noise filters 10 and the first and second power factor correction circuits. The third simulation information, the first, the second and the third noise filters 10 and the first, the second and the third power factor correction circuits 20, in which the amount of power and the power factor which are improved by the operation 20, are measured, are operated. If it is determined that the improved power factor reaches the preset power factor compensation range compared to before the fourth simulation information in which both the improved power amount and power factor are measured are operated, the improved power factor reaches the preset power factor compensation range for the first time. By the fifth filter information corresponding to the time (Time), the noise filter 10 and the power factor correction circuit 20 in operation at the time (Time) when the improved power factor reaches the preset power factor compensation range for the first time On the amount of power and power factor Information can be determined and output.

The portable power measurement system generates simulation information based on the above principle and provides the measured information along with the measured voltage and current, thereby providing a noise filter 10 and a power factor correction circuit to an AC power supply line to which 3-phase AC power is supplied. 20), it is possible to prevent the problem that the efficiency of the AC power supply is not properly improved or the installation cost is increased due to unnecessarily high quality components.

FIG. 3 is a diagram illustrating a process of outputting power amount, power factor, and simulation information of a three-phase AC power supply using a portable power measurement system according to an embodiment of the present invention.

The portable power measurement system measures the magnitude and waveform of the voltage of the R phase AC power, the S phase AC power, and the T phase AC power, and the current magnitude and waveform separately for each AC power through the measurement module 100. In operation S310, the control module 200 separately calculates the amounts of power of the R-phase AC power, the S-phase AC power, and the T-phase AC power based on the measured magnitudes of the voltages and the current magnitudes (S320). The power factor of the R-phase AC power source, the S-phase AC power source, and the T-phase AC power source may be separately calculated based on the measured waveforms of voltages and currents (S330).

When the amount of power and power factor of each AC power source are calculated, the control module 200 generates simulation information generated under the same condition as that of the voltage and current of each AC power source among the pre-stored simulation information in the storage module 300. It may be determined whether there exists (S340).

In this case, the control module 200 determines whether there is simulation information generated under the same condition as the magnitude of the voltage and current, and determines whether the simulation information of the same condition exists separately for each AC power source. If all of the simulation information exists (S340-Yes), through the output module 400, it is possible to output the simulation information of the same condition with the voltage, current, power amount, power factor for each AC power source (S350).

Here, the simulation information includes a plurality of noise filters 10 and a plurality of power factor correction circuits 20 provided in parallel, and when a certain number of noise filters 10 and power factor correction circuit 20 operate, noise is generated. Measured values of power amount and power factor which are improved compared to before the operation of the filter 10 and the power factor correction circuit 20 are included.

On the other hand, if it is determined that the simulation information of the same condition does not exist (S340-No), the control module 200 may allow the voltage, current, power amount, and power factor to be individually output for each AC power source (S360). .

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the art to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

100: measuring module 110: current measuring module
120: voltage measurement module 200: control module
300: storage module 400: output module
500: power supply module

Claims (8)

A case formed in a rectangular parallelepiped shape and provided with an aluminum material and provided with a handle at one side to be portable by a user;
A measurement module provided to be accommodated in the case and measuring a magnitude and a waveform and a magnitude and a waveform of a voltage of a three-phase AC power supplied from the outside;
It is provided to be accommodated inside the case, and is connected to the measurement module, and calculates the amount of power and power factor of the three-phase AC power source based on the magnitude and waveform and the current magnitude and waveform of the measured three-phase AC power source Control module;
The power factor is provided to be accommodated inside the case, and connected to the measurement module to reduce the phase difference between the voltage and the current and the noise filter for filtering the noise of the AC power provided in the circuit to which the voltage and the current of the specific intensity are supplied. When the compensation circuit operates, the simulation information generated in such a manner that the amount of power and the power factor which are improved compared to before the noise filter and the power factor correction circuit are measured are distinguished according to the strength of the voltage and the current, and stored in a plurality. module; And
And an output module provided to output the voltage, current, power amount, and power factor of the three-phase AC power source.
The measurement module,
Measure the magnitude and waveform of the three-phase AC power and the magnitude and waveform of the current, and separately measure the voltage and current of the R-phase AC power, S-phase AC power and T-phase AC power,
The control module,
When the magnitude and waveform of each of the individually measured voltages and respective current magnitudes and waveforms are transmitted from the measurement module, the R-phase alternating current power source and the S-phase alternating current are based on the magnitude and current magnitude of each of the transferred voltages. The power amount of the power source and the T phase AC power source is separately calculated, and the power factor of the R phase AC power source, the S phase AC power source and the T phase AC power source is individually calculated based on the waveforms of the respective voltages and currents transmitted. and,
The measurement module,
Current measurement which is separately connected to the R phase AC power supply line, the S phase AC power supply line and the T phase AC power supply line to separately measure the current of the R phase AC power, S phase AC power and T phase AC power The module is connected to the R-phase AC power supply line, the S-phase AC power supply line, the T-phase AC power supply line, and the N-phase AC power supply line separately, and the R-phase AC power supply, the S-phase AC power supply, and the T-phase AC power supply It consists of a voltage measurement module that measures the voltage of the power supply individually,
The control module,
When the amount of power and the power factor of the R-phase AC power source, the S-phase AC power source, and the T-phase AC power source are separately calculated, the simulation information under the same condition as the strength of the voltage and the current among the plurality of stored simulation information is determined. For each AC power source, the simulation information under the same conditions is determined individually.
The control module,
The calculated amounts of power and power factor of the calculated R-phase AC power, S-phase AC power, and T-phase AC power are separately output, and the determined simulation information is output together with the amount of power and power factor output for each AC power. ,
The simulation information,
A plurality of noise filters and a power factor correction circuit are provided in a circuit to which a voltage and a current of a specific intensity are supplied, and the plurality of noise filters and the plurality of power factor correction circuits are connected in parallel, respectively. The noise filter and the plurality of power factor correction circuits are operated to include information on the amount of power and the power factor which are compared and improved before the operation.
Separately measure the amount of power and the power factor to be improved each time the number of operations of the plurality of noise filters and the plurality of power factor correction circuits increases by one, when the plurality of noise filters and the plurality of power factor correction circuits do not operate. It is composed of a plurality of information that contains all the information,
The control module,
In the case of loading specific simulation information, information on how many noise filters and how many power factor correction circuits are operated in the process of generating the specific simulation information includes the voltage, current, power amount and power factor of the three-phase AC power supply. Together through the output module,
The control module,
When the amount of power and the power factor of the R-phase AC power source, the S-phase AC power source, and the T-phase AC power source are separately calculated, the simulation information of the same condition as the strength of the voltage and the current among the plurality of stored simulation information may be obtained. Each one individually,
The amount of power improved each time the number of operations of the plurality of noise filters and the plurality of power factor correction circuits increases by one, when the plurality of noise filters and the plurality of power factor correction circuits do not operate according to the determined simulation information. When all the measured information on the power factor is included, the power factor correction circuit operates one by one, so that the noise filter and the power factor operating at the time when the improved power factor reaches the preset power factor compensation range for the first time. The information on the amount of power and the power factor improved by the compensation circuit is determined and outputted,
The noise filter is a capacitor which is a capacitive load,
The power factor correction circuit is an inductor that is an inductive load,
The simulation information,
First simulation information generated by measuring power amount and power factor when the zero switch circuit is turned on so that the plurality of noise filters and the plurality of power factor correction circuits do not operate;
Second simulation information generated by measuring power amount and power factor when the zero switch circuit is turned off and the first switch circuit is turned on to operate the first noise filter and the first power factor correction circuit;
Third simulation information generated by measuring a power amount and a power factor when the second switch circuit is turned on while the first switch circuit is turned on to further operate the second noise filter and the second power factor correction circuit;
When the third switch circuit is turned on while the first switch circuit and the second switch circuit are turned on to further operate the third noise filter and the third power factor correction circuit, the first and second switch circuits may be configured to measure the amount of power and the power factor. 4 simulation information; And
And a fifth simulation information corresponding to a time at which the power factor correction circuit is additionally operated one by one so that the improved power factor reaches a preset power factor compensation range for the first time. Measuring system.
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