TWI673591B - High-voltage automatic voltage regulation adjusting device and adjusting method thereof - Google Patents

Abstract

The utility model relates to a high-voltage automatic voltage regulator adjusting device, which is suitable for being installed between a power supply terminal and a user terminal equipment, and comprises a voltage transformation unit and a regulating unit. The transformer unit includes a primary-side wiring electrically connected to the power supply end and having a plurality of first coil turns, and a secondary-side wiring electrically connected to the user-end device and having a plurality of second coil turns. The control unit includes a first voltage regulator connected to the primary-side wiring, a second voltage regulator connected to the secondary-side wiring, and an automatic regulator. The automatic regulator changes the connection combination of the first coil turns or the second coil turns according to the voltage value range sensed by the first voltage ratior or the second voltage ratior, and adjusts the input to the user equipment. Voltage value. The invention also provides a corresponding high-voltage automatic voltage regulation method.

Description

High-voltage automatic voltage regulation device and method

The present invention relates to a device and method for adjusting the voltage of a feed, and in particular, to a high-voltage automatic voltage regulation device and a method for adjusting the same.

Since the power output from the power plant will be consumed with the transmission distance, in order to reduce the loss caused by long-distance transmission, the power output from the power plant is usually output and transmitted in the form of high voltage electricity with a voltage of 35 to 220 kilovolts (KV). Until some places with relatively large power consumption, the voltage of the substation is reduced to 11.4 kV or 22.8 kV, and the power is transmitted to the place through the public feeder line provided by the power plant for use.

Taking the place with relatively large power consumption as an example, as there are many kinds of machines with different applicable voltages in the factory, each machine must be connected before the electric energy input from the public feeder. Only through the transformer of a specific voltage range can the individual machine be input to provide the power required for operation.

However, because electricity may have traveled a considerable distance before being transmitted from the power plant to a specific public feeder, or other heavy loads may have been supplied first The electrical energy in the electrical field causes a certain amount of electrical energy loss, which results in a drop (voltage drop) below the expected voltage value. Therefore, in a relatively downstream power consumption place, the voltage volt value after the power transformation through the power transformation equipment may not be able to accurately maintain 11.4 or 22.8 kV, or even cause irregular voltage fluctuations. In the case of the factory setting in accordance with the feed voltage parameters announced by the power supplier, if the value of the feed voltage varies, or even irregular fluctuations occur, it will inevitably cause the instability of the voltage of the input electrical equipment, which may not only affect the use of The normal operation of electrical equipment may even cause damage to the electrical equipment.

In view of the above problems, machines that require precise control of the voltage range of power supply are usually equipped with dedicated voltage stabilization equipment. However, in the case of a large number of implements, it is necessary to install the voltage stabilizing equipment one by one in cooperation with the feed line, which will inevitably consume a considerable amount of construction and equipment costs, thereby causing trouble and burden on the power end.

Therefore, an object of the present invention is to provide a high-voltage automatic voltage stabilization regulator capable of automatically generating a voltage stabilizing effect when the voltage is floating and stably transmitting electric energy to a user-end device.

Therefore, the high-voltage automatic voltage regulation device of the present invention is suitable for being installed between a power supply terminal with a voltage of 10 to 22.8 kilovolts and a user-end device, and includes a transformer unit and a transformer unit connected to the transformer unit. Regulatory unit.

The transformer unit includes an electrical connection to the power supply terminal and a plurality of turns. The primary side wiring of different first coil turns and a secondary side wiring electrically connected to the user-end device and having a plurality of second coil turns having different numbers of turns.

The regulating unit is connected to the primary-side wiring or the secondary-side wiring, and includes a first voltage ratior connected to the primary-side wiring, a second voltage ratior connected to the secondary-side wiring, and a connection. The primary regulator, the first voltage regulator, and the second voltage regulator have an automatic regulator, and the automatic regulator is used according to the voltage value range sensed by the first voltage regulator or the second voltage regulator, Change the connection combination of the first coil turns of the primary side wiring or the connection combination of the second coil turns of the secondary side wiring, thereby adjusting the voltage to be transmitted to the user equipment through the secondary side wiring. value.

Then, an object of the present invention is to provide a high-voltage automatic voltage stabilization adjustment method capable of automatically generating a voltage stabilization effect when the voltage is floating and stably transmitting electric energy to a user-end device.

Therefore, the high-voltage automatic voltage regulation method of the present invention is applicable to a power supply terminal with a voltage of 10 to 22.8 kilovolts, and a user-end device, and includes a preliminary step, a setting step, a judging step, and an adjusting step.

The preparatory step is to install a high-voltage automatic voltage regulation device according to the present invention between the power supply terminal and the user equipment.

The setting step is to set an expected voltage range of the automatic regulator according to a supply voltage range of the power supply end.

The judging step is a step of detecting the primary side wiring by the first voltage ratior. Sensing voltage range.

The adjusting step is to adjust the connection combination of the first coil turns of the primary side wiring according to the sensing voltage range by the automatic regulator to change the voltage value that is input to the user-end equipment through the secondary side wiring.

In addition, the object of the present invention is to provide another high-voltage automatic voltage stabilization adjustment method capable of automatically generating a voltage stabilization effect when the voltage is floating and stably delivering electric energy to a user-end device.

Therefore, the high-voltage automatic voltage regulation method of the present invention is applicable to a power supply terminal with a voltage of 10 to 22.8 kilovolts, and a user-end device, and includes a preliminary step, a setting step, a judging step, and an adjusting step.

The preparatory step is to install a high-voltage automatic voltage regulation device according to the present invention between the power supply terminal and the user equipment.

The setting step is to set an expected voltage range of the automatic regulator according to an electrical voltage range of the user-end device.

The judging step is sensing a sensing voltage range of the secondary-side wiring by the second voltage ratior.

The adjusting step is to adjust the connection combination of the first coil turns of the primary side wiring according to the sensing voltage range by the automatic regulator to change the voltage range that is transmitted to the user equipment through the secondary side wiring.

The effect of the present invention is that when the voltage at the power supply end is unstable, Real-time sensing through the first voltage ratior or the second voltage ratior, and using the automatic regulator to change the connection combination of the first coil turns of the primary side wiring, or the The combination of the two coil turns adjusts the voltage value or voltage range to the user-end device, which can automatically generate a voltage stabilization effect when the voltage is floating, and stably transmit the power to the user-end device.

100‧‧‧Power supply side

200‧‧‧Customer equipment

3‧‧‧Transformer Unit

31‧‧‧Primary wiring

311‧‧‧first coil turn

32‧‧‧ secondary side wiring

321‧‧‧Second coil turns

4‧‧‧Regulatory unit

41‧‧‧The first specific pressure device

42‧‧‧Second Comparator

43‧‧‧Automatic Regulator

431‧‧‧setting interface

44‧‧‧Record electricity meter

91‧‧‧ preliminary steps

92‧‧‧Setting steps

93‧‧‧Judgment steps

94‧‧‧ adjustment steps

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a schematic diagram of a circuit configuration illustrating an embodiment of the high-voltage automatic voltage regulation device of the present invention; and FIG. 2 is A step-by-step flowchart illustrating the first and second embodiments of the high-voltage automatic voltage regulation method of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIG. 1, an embodiment of the high-voltage automatic voltage regulation device of the present invention is suitable for being installed between a power supply terminal 100 having a voltage of 10 to 22.8 kilovolts and a user equipment 200, and includes a voltage transformation unit 3. And a control unit 4. Among them, the power supply The terminal 100 is described by taking the feeder voltage provided by the power plant as 11.4 kV or 22.8 kV as an example, and the user-side equipment 200 is described by taking the internal transformer device in the factory as an example. , You can go through transformer transformation again to reduce the voltage to a relatively low voltage below 600 volts available to the processing machine.

The transformer unit 3 includes a primary side wiring 31 electrically connected to the power supply terminal 100 and having a plurality of first coil turns 311 having different numbers of turns, and an electrical connection to the user equipment 200 and having a plurality of different numbers of turns. The secondary side wiring 32 of the second coil turn 321. Among them, the ratio of each turn of the first coil turns 311 and the second coil turns 321 preferably adopts a turns gap ratio of 1.5% to 3.0%, through a plurality of coil turns that can be freely selected and combined to Corresponds to the possible voltage fluctuation range.

The regulating unit 4 is connected to the primary-side wiring 31 or the secondary-side wiring 32 and includes a first voltage ratior 41 connected to the primary-side wiring 31; a second ratio connected to the secondary-side wiring 32. Voltage regulator 42; an automatic regulator 43 connected to the primary wiring 31, the first pressure regulator 41, and the second pressure regulator 42; and an automatic regulator 43 connected to the automatic regulator 43 and used to record input to the user The meter 44 records the voltage value of the terminal device 200. The automatic regulator 43 is an on-load tap-changer and has a setting interface 431 for setting a desired voltage range for operation. The setting interface 431 can set the number of segments corresponding to the first coil turns 311, that is, the number of segments corresponds to the first coil turns 311 with different number of turns, thereby achieving the setting of the expected voltage range. purpose. The transformation ratios of the first pressure ratior 41 and the second pressure ratior 42 are 1: 100.

The auto-regulator 43 is used to enable the auto-regulator 43 according to a sensing voltage range of the first voltage ratio 41 or the second voltage ratio 42 and according to the setting of the number of stages performed by the setting interface 431. Corresponding to the switching, the connection combination of the first coil turns 311 of the primary-side wiring 31 or the connection combination of the second coil turns 321 of the secondary-side wiring 32 is changed. When the connection combination of the first coil turns 311 of the primary-side wiring 31 or the connection combination of the second coil turns 321 of the secondary-side wiring 32 is changed, the power generated by the transformer unit 3 to the input power will be changed. The voltage conversion ratio can be used to adjust the voltage value transmitted to the user-end device 200 through the secondary-side wiring 32.

It is worth noting that the unstable state of the voltage of the power supply terminal 100 may be regular or irregular, although this embodiment can pass the first voltage ratior 41 to the second voltage ratio. The sensing of the controller 42 causes the automatic regulator 43 to perform an automatic adjustment to overcome the problem of the voltage instability of the power supply terminal 100. However, fundamentally, it is still necessary to report the actual status of the power received by the power consumer to the power supply terminal 100 in order to provide reference improvements for the power supply terminal 100. Therefore, the recording power meter 44 can record the change status of the voltage with time, and store the actual voltage change information of the received electrical energy in return.

Referring to FIG. 2 and FIG. 1, a first embodiment of the high-voltage automatic voltage regulation method of the present invention is applicable to a power supply terminal 100 having a voltage of 10 to 22.8 kV, and a user equipment 200, and includes a preliminary step. 91. A setting step 92. A judgment Step 93, and an adjustment step 94.

The preliminary step 91 is to install an embodiment of the high-voltage automatic voltage regulation device of the present invention between the power supply terminal 100 and the user equipment 200 to execute the high-voltage of the invention through the embodiment of the high-voltage automatic voltage regulation device of the present invention. The first embodiment of the automatic voltage regulation method.

The setting step 92 is to set an expected voltage range of the automatic regulator 43 according to a supply voltage range of the power supply terminal 100.

In the determination step 93, a sensing voltage range of the primary side wiring 31 is sensed by the first voltage ratior 41 to determine a voltage floating range of the electric energy currently supplied by the power supply terminal 100 to provide the automatic regulator 43. Reference for adjustment.

The adjusting step 94 uses the automatic regulator 43 to adjust the connection combination of the first coil turns 311 of the primary side wiring 31 according to the sensing voltage range and the preset expected voltage range so that the specific power supply voltage range is within The electrical energy can be transformed through the connection of the two of the first coil turns 311, and the voltage is adapted to the suitable voltage value of the user equipment 200. Therefore, the power transmitted to the user through the secondary wiring 32 can be changed. The voltage value of the device 200, and achieves the effect of voltage stabilization on the electrical energy transmitted to the user-end device 200.

A second embodiment of the high-voltage automatic voltage regulation method of the present invention is different from the first embodiment in that the setting step 92 is to set the automatic regulator 43 according to an electric voltage range of the user equipment 200. An expected voltage range; the judgment In step 93, the second voltage ratior 42 senses a sensing voltage range of the secondary-side wiring 32; and in the adjusting step 94, the automatic regulator 43 adjusts the primary-side wiring according to the sensing voltage range. The connection combination of the first coil turns 311 of 31 changes the voltage range that is transmitted to the user-end device 200 through the secondary-side wiring 32.

Executing the determining step 93 through the second voltage ratior 42 is beneficial to cooperate with the voltage range in which the client device 200 can operate normally, so that the power supplied to the client device 200 is within the expected voltage range. Compared with the first embodiment, although the voltage is not stabilized at a fixed value, the purpose voltage is appropriately enlarged to a certain range, which can match the power consumption attribute of the user-end device 200 without affecting the user. In the case of the normal operation of the terminal device 200, it still provides a certain voltage stabilization effect, and at the same time reduces the frequent adjustment of the automatic regulator 43 due to small voltage fluctuations, which is beneficial to the implementation of the embodiment of the high-voltage automatic voltage regulation device of the present invention. stability. In addition, if the user-side equipment 200 is substantially multiple machines with similar power consumption ranges, the embodiments of the high-voltage automatic voltage regulation device of the present invention can also cooperate at the same time, thereby improving the use efficiency of the equipment.

In summary, the high-voltage automatic voltage regulator and adjusting method of the present invention can sense the actual voltage information through the first voltage regulator 41 and the second voltage regulator 42 and use the automatic regulator 43 in real time. Adjusting according to the required voltage value or voltage range ensures the stability of the electrical energy supplied to the user-end device 200, so it can indeed achieve the purpose of the present invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (7)

The utility model relates to a high-voltage automatic voltage regulator adjusting device, which is suitable for being installed between a power supply terminal with a voltage of 10 to 22.8 kV and a user-end device, and comprises: a voltage transformation unit including an electrical connection to the power supply terminal and having multiple Primary-side wiring of first coil turns having different turns, and a secondary-side wiring electrically connected to the user equipment and having a plurality of second coil turns having different turns; and a control unit connected to the primary Side wiring or the secondary side wiring and includes a first voltage ratior connected to the primary side wiring, a second voltage ratior connected to the secondary side wiring, and a connection to the primary side wiring, the first A voltage regulator and an automatic regulator of the second voltage regulator, the automatic regulator is used to change the value of the primary side wiring according to the range of voltage value sensed by the first voltage regulator or the second voltage regulator Wait for the connection combination of the first coil turns, or the connection combination of the second coil turns of the secondary-side wiring, thereby adjusting the voltage value to be transmitted to the user equipment through the secondary-side wiring. The high-voltage automatic voltage regulator according to claim 1, wherein the automatic regulator has a setting interface for setting a desired voltage range for operation. The high-voltage automatic voltage stabilizer regulating device according to claim 1, wherein the automatic regulator of the regulating unit is an on-load tap-changer. The high-voltage automatic voltage regulation device according to claim 1, wherein the control unit further comprises a recording electric meter connected to the automatic regulator and used to record a voltage value input to the user equipment. The high-voltage automatic voltage regulator adjustment device according to claim 1 or 2, wherein the regulator The voltage conversion ratio of the first pressure ratior and the second pressure ratior of the control unit is 1: 100. A high-voltage automatic voltage regulation method is applicable to a power supply terminal with a voltage of 10 to 22.8 kV and a client device, and includes: a preliminary step of installing between the power supply terminal and the client device as requested The high-voltage automatic voltage regulator adjustment device described in item 1; a setting step of setting an expected voltage range of the automatic regulator according to a supply voltage range of the power supply terminal; a judgment step of the first voltage ratio sensor Measuring a sensing voltage range of the primary wiring; and an adjusting step of adjusting the connection combination of the first coil turns of the primary wiring according to the sensing voltage range by the automatic regulator to change the secondary winding The voltage value of the side wiring to the customer's equipment. A high-voltage automatic voltage regulation method is applicable to a power supply terminal with a voltage of 10 to 22.8 kV and a client device, and includes: a preliminary step of installing between the power supply terminal and the client device as requested The high-voltage automatic voltage regulator adjustment device described in item 1; a setting step of setting an expected voltage range of the automatic regulator according to an electric voltage range of the user equipment; a judgment step of the second ratio The voltage regulator senses a sensing voltage range of the secondary-side wiring; and an adjusting step, the automatic regulator adjusts the connection combination of the first coil turns of the primary-side wiring according to the sensing voltage range, and changes The voltage range that is transmitted to the user-end equipment through the secondary-side wiring.