KR100229849B1 - Compound transducer - Google Patents

Abstract

The present invention relates to a complex converter, in the comparator in which the current of each phase flowing through the distribution line is input to the inverting input terminal through the transformer, the user by a dip switch connected to the analog switch through the output terminal fed back to the inverting input terminal through the analog switch Outputs the current value, the voltage value, the power value, the frequency, the reactive power value, and the phase efficiency value with respect to the current value of the comparator. Alternatively, it can be changed to a value corresponding to the ratio selected by the user, such as 100%. The current value, voltage value, power value, reactive power value, phase efficiency, and / or frequency can be obtained and converted into DC voltage or DC current value for output. I did it.

Description

Hybrid transducer

The present invention relates to a hybrid converter, and in particular, the current value, the voltage value, the power value, the reactive power value, the phase efficiency, and / or the frequency for each current flowing in each phase are obtained by a value corresponding to a ratio selected by the user through an analog switch. It relates to a hybrid transducer for output.

In general, the power supplied through the distribution line is supplied at the initially set value, and it is already consumed 25%, 50%, 75% or 100% of the set power depending on the state of business or the customer using it. This is a well known fact.

Therefore, in the device for general power supply, the current value, voltage value, power value, reactive power value, and phase efficiency that change during the use of the power supply, as well as the determination of how much power each of the loads are set and used are supplied. The exact value of the frequency and / or frequency must be checked in order to plan the use of the power supply.

However, in the related art, it is possible to check the state of supply and demand of a power source at a place where a power source is used as a charge charged by an integrated power meter, or to install a relay to prevent an electric accident.

However, according to the conventional method of checking the power supply and demand by the integrated multi-hour meter, the user can check the usage once a month, so that the amount of power used by each load cannot be individually checked. There was a disadvantage in that the value of the set power source could not be arbitrarily adjusted.

In addition, according to the method of checking the power supply status by an instrument such as a relay, the consumer cannot check the power supply status while the power supply is normally supplied, and the power supply amount cannot be arbitrarily adjusted according to the power supply usage status. .

Accordingly, the present invention can be changed to the value corresponding to the ratio selected by the user through the analog switch, such as 25%, 50%, 75% or 100% of the set value in each phase, the current value, voltage value, power value, It is an object of the present invention to provide a hybrid converter which obtains and outputs reactive power value, phase efficiency and / or frequency.

In order to achieve the above object, the present invention allows each phase of a current flowing through a distribution line to be input to an inverting input terminal of a comparator through a transformer, and an analog switch at an output terminal of the comparator that is fed back to an inverting input terminal through an analog switch. In the current-voltage converter to supply a current ratio selected by the user by a connected dip switch, the current value of the comparator is detected by the current detector and output to the current value output stage, and the current value is received from the current detector. Outputs a voltage value to a voltage output stage, and outputs a power value corresponding to the power used by a transformer, a pulse width modulator, a current-voltage converter, a multiplier, and an integrator to receive the voltage value from the current-voltage converter. Before receiving power from the integrator The frequency converter outputs a frequency proportional to the instantaneous power that is the power used by the load to the frequency output stage, and the power corresponding to the reactive power in the transformer, the abnormal part, the pulse width modulator, the current-voltage converter, the multiplier, and the integrator. Value is output to the reactive power output stage, and the phase detection section receiving the pulse width duty cycles from the two pulse width modulators outputs the value corresponding to the phase efficiency to the phase efficiency output stage, thereby providing 25% and 50% of the set value in each phase. It can be changed to the value corresponding to the ratio selected by the user through the analog switch such as%, 75% or 100%, and DC value can be obtained by using the current value, voltage value, power value, reactive power value, phase efficiency and / or frequency for the power source used. The output is converted to voltage or DC current.

1 is a block diagram schematically showing the overall configuration of a hybrid converter of the present invention.

<Code Description of Main Parts of Drawing>

2, 2a, 2b: comparators 3, 3a, 3b: analog switches

4, 4a, 4b, 4c, 5, 5a, 5b, 5c, 6, 6a, 6b, 6c: Dip switch

7, 7a, 7b: current detector 8, 8a, 8b: current-voltage detector

12, 17: integrator 13: voltage-frequency conversion unit

18: vehicle detection unit

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The current of each phase (R) (S) (T) flowing through the distribution line passes through the first to third transformers (1) (1a) and (1b), and the first to third comparators (2) (2a) (2b). ) Is inputted to the inverting input terminal, and the non-inverting input terminal is fed back to the inverting input terminal via the grounded first to third comparators (2) (2a) and (2b), and the first to third analog switches (3). (3a) (3b) is connected to a plurality of dip switches (4, 4a, 4b, 4c), (5, 5a, 5b, 5c) (6, 6a, 6b, 6c) respectively. The ratio of the current supplied through the three comparators (2) (2a) (2b) can be arbitrarily selected, and each phase (R) (S) from the first to third comparators (2) (2a) (2b) is selected. The current value of T) is detected by the current detectors 7 (7a) and 7b and output to the current value output terminal AR (AS) (AT), and the current detectors 7 (7a) and 7b described above. In each of the first to third current-voltage converters 8, 8a, and 8b that receive the current value of each phase R, S, and T from The first to third current-voltage converters 8, 8a, and 8b are converted into voltage values of (S) (T) and output to the voltage value output terminals VR (VS) and VT. In the first to third transformer (9) (9a) (9b) that receives the voltage value from the output to detect the voltage value proportional to the load voltage and outputs, and the first to third transformer (9) (9a) (9b) In the first to third pulse width modulator 10, 10a (10b) receiving a voltage value from the) to modulate the respective pulse width to output a duty cycle (Duty Cycle), the first to third On / off by pulse width duty cycles from the first to third pulse width modulators 10, 10a and 10b while receiving a voltage difference from the current-voltage converters 8, 8a and 8b. In the first integrator 12 which receives the voltage values, which are the outputs of the first to third multipliers 11, 11a and 11b, which respectively perform time division according to the off state, The voltage-frequency converter 13 outputs the power value to the power value output terminal WATT and receives the power value from the first integrator 12, and outputs a frequency proportional to the instantaneous power that is the power used by the load. In the first to third abnormalities 14, 14a and 14b which receive a voltage value proportional to the load power from the first to third transformers 9, 9a and 9b. Fourth to sixth pulse widths each of which shifts the phase by? / 2 so as to output the phase change reactive voltage value, and receives the reactive voltage value from the first to third abnormalities 14, 14a and 14b. The modulators 15, 15a and 15b modulate the respective pulse widths and output them in a duty cycle, and the first to third current-voltage converters 8, 8a and 8b. Between the pulse width tutues from the fourth to sixth pulse width modulators 15, 15a and 15b while receiving a voltage value from In the second integrator 17 which receives the voltage values, which are the outputs of the fourth to sixth multipliers 16, 16a and 16b, which respectively perform time division according to the on / off state by the clock, corresponding to the reactive power. Outputting the power value to the reactive power value output terminal VAR, and receiving the pulse width duty cycles from the fourth to sixth pulse width modulators 15, 15a and 15b, and receiving the first to third pulses. The phase detection unit 18 receiving the pulse width duty cycles from the width modulators 10, 10a and 10b is configured to output a value corresponding to the phase efficiency to the phase efficiency output stage PA.

The operation process of the present invention configured as described above will be described in detail with reference to the circuit diagram of FIG. 3.

After the current of each phase (R) (S) (T) flowing through the power distribution line passes through the first to third transformers (1) (1a) and (1b) for some voltage drop, the first to third comparators 2 The first to third analog switches in the state of being input to the inverting input terminal of 2a and 2b and being fed back to the inverting input terminal via the first to third analog switches 3,3a and 3b at the output terminal, respectively. (3) The user selectively turns on the dip switches 4, 4a, 4b and 4c and 5, 5a, 5b and 5c connected to the 3a and 3b, respectively. The ratio of the current supplied through the first to third comparators 2 (2a) and 2b can be arbitrarily selected.

That is, when the dip switches 4, 5, and 6 of the first to third analog switches 3, 3a, and 3b are turned on, a current corresponding to 25% of the input current is the first to third comparators ( 2) flows through (2a) and (2b), and when the dip switches 4a, 5a, and 6a are turned on, a current corresponding to 50% of the input current flows, and the dipswitches 4b and 5b ( When 6b) is turned on, a current corresponding to 75% of the input current flows, while when the dip switches 4c, 5c, and 6c are turned on, a set current of 100% of the input current flows.

Therefore, the current detectors 7, 7a and 7b detect current values of the respective phases R, S and T flowing through the output terminals of the first to third comparators 2, 2a and 2b. By outputting to the current value output terminal (AR) (AS) (AT) by connecting the current measuring device through this it is possible to measure the current value of each phase (R) (S) (T). The first to third current-voltage converters 8 and 8a (receiving the current values of the respective phases R, S, and T) from the current detectors 7, 7a, and 7b described above. 8b) converts the voltage value of each phase (R) (S) (T) and outputs it to the voltage value output terminal (VR) (VS) (VT). The voltage value of (S) (T) can be measured. The first to third transformers 9, 9a, and 9b, which receive voltage values from the first to third current-voltage converters 8, 8a, and 8b, are detected as voltage values proportional to the load voltage. And output to the first to third pulse width modulators 10, 10a and 10b to modulate the respective pulse widths and output them in a duty cycle. The first to third current-voltage The state of being turned on / off by the pulse width duty cycle from the first to third pulse width modulators 10, 10a and 10b while receiving voltage values from the converters 8, 8a and 8b. In the first integrator 12, which sequentially receives voltage values that are outputs of the first to third multipliers 11, 11a, and 11b respectively performing time division according to the power value output stage WATT. When the power measurement device is connected, the amount of power used according to the load can be measured. In addition, the voltage-frequency conversion unit 13 receiving the power value from the first integrator 12 outputs a frequency proportional to the instantaneous power, which is the power used by the load, to the frequency output terminal F, thereby supplying a measuring instrument. Frequency can be measured according to the power supply.

On the other hand, in the first to third abnormalities 14, 14a and 14b which receive voltage values proportional to the load power from the first to third transformers 9, 9a and 9b, the respective phases are? And outputting the phase shifted reactive voltage value by / 2 so that the fourth to sixth pulse width modulators 15, 15a and 15b modulate the respective pulse widths and output them in a duty cycle. Pulse width duty from the fourth to sixth pulse width modulators 15, 15a and 15b while receiving voltage values from the first to third current-voltage converters 8, 8a and 8b. The power corresponding to the reactive power in the second integrator 17 which receives the voltage values, which are the outputs of the fourth to sixth multipliers 16, 16a and 16b, which are time-divided according to the on / off state by the cycle. Value is output to the reactive power output terminal (VAR). To be able to be measured. In addition, the first to third pulse width modulators 10, 10a and 10b receive pulse width duty cycles from the fourth to sixth pulse width modulators 15, 15a and 15b. Since the on-vehicle detection unit 18 receives the pulse width duty cycle from, the value corresponding to the phase efficiency is output to the phase efficiency output terminal PA, so that the phase efficiency according to the power used can be measured while connecting the measuring device. do.

Therefore, in the comparator of the present invention, the comparator in which the voltage and current of each phase flowing through the distribution line are inputted through the transformer to the inverting input terminal is connected to the dip switch connected to the analog switch through the output terminal fed back to the inverting input terminal through the analog switch. By outputting at a ratio of the current selected by the user, and outputting the current value, voltage value, power value, frequency, reactive power value, phase efficiency value with respect to the current value of the comparator 25%, 50%, It can be changed to a value corresponding to the ratio selected by the user, such as 75% or 100%, and the current value, voltage value, power value, reactive power value, phase efficiency and / or frequency are calculated and output for the power source used.

Claims (2)

The current of each phase (R) (S) (T) flowing through the distribution line passes through the first to third transformers (1) (1a) and (1b), and the first to third comparators (2) (2a) (2b). In a hybrid converter configured to be input to an inverting input terminal of a power supply), the first to third analog switches 3 are respectively provided at the output terminals of the first to third comparators 2 (2a) and 2b to which the non-inverting input terminal is grounded. (3a) and (3b) are fed back to the inverting input stage, and the first to third analog switches (3) (3a) and (3b) have a plurality of dip switches (4, 4a, 4b, 4c), ( 5,5a, 5b, 5c) (6,6a, 6b, 6c) to allow the user to arbitrarily select the proportion of current supplied through the first to third comparators 2, 2a and 2b. And a power converter configured to output a current value, a power value, a frequency, a reactive power value, and a phase efficiency for a randomly selected power supply. The current detection unit (7) (7a) according to claim 1, wherein the current value of each phase (R) (S) (T) output from the output terminal of the first to third comparators (2) (2a) (2b). Detected by (7b) and output to the current value output terminal (AR) (AS) (AT), the current value of the phase (R) (S) (T) from the current detection unit (7) (7a) (7b) described above The first to third current-voltage converters 8, 8a, and 8b that receive the voltage are converted into voltage values of the respective phases R, S, and T, and are converted into voltage values of the output voltage VRs VS. VT), and the first to third transformers 9, 9a, 9b and the third to receive voltage values from the first to third current-voltage converters 8, 8a, 8b. The electric power value corresponding to the electric power used by the first to third pulse width modulators 10, 10a and 10b, the first to third multipliers 11, 11a and 11b and the first integrator 12 Value output stage (WATT) and the instantaneous power in the voltage-frequency conversion unit 13 receives the power value from the first integrator 12 The first to third or more abnormal portion to output a frequency proportional to the frequency output terminal (F), and receives a voltage value proportional to the load power from the first to third transformer (9) (9a) (9b) 14) 14a, 14b, fourth to sixth pulse width modulators 15, 15a, 15b, fourth to sixth multipliers 16, 16a, 16b, and second integrator 17 To output to the reactive power value output terminal VAR, and receiving the pulse width duty cycles from the fourth to sixth pulse width modulators 15, 15a and 15b. The phase change detector 18, which receives the pulse width duty cycle from the modulators 10, 10a, and 10b, is configured to output a value corresponding to the phase efficiency to the phase efficiency output stage PA. .

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