TWM450178U - High power ac voltage regulator structure improvement - Google Patents

Description

High power AC voltage regulator structure improvement

The technology of this creation provides a structural improvement of a high-power AC voltage regulator, especially a regulator structure that increases capacity, response speed, and provides greater accuracy.

According to the first figure, the AC voltage regulator 1 used in the current conventional practice is mainly provided with a power input terminal and a power output terminal respectively on the buck-boost transformer 11 and is sensed through a control circuit 12 The output voltage, and the driving of the induction motor 13 through the control circuit 12, causes the induction motor 13 to drive the carbon brush 141 on the autotransformer 14 to reciprocate to adjust to a desired voltage, and finally the voltage is transmitted through the carbon brush 141 to The high voltage side of the transformer 15 is increased or decreased, and then induced to the low voltage side to adjust the voltage of the power supply output terminal. However, since the coil turns ratio of the transformer 15 is usually 4:1, the maximum of the autotransformer 14 itself has been determined. Capacity, so the voltage range that can be adjusted is limited, and the capacity of the AC voltage regulator 1 is limited. If the output voltage adjustment range and output capacity need to be increased, multiple sets of AC voltage regulators 1 must be connected in series, which not only improves manufacturing. The cost also makes the AC voltage regulator 1 as a whole larger volume. Further, although the reciprocating position of the carbon brush 141 and the pressure increasing and reducing transformer 15 can be used to adjust the output voltage, Increasing pressure to the transformer 15 The coil turns ratio is limited, so it is not possible to adjust the more accurate output voltage requirements.

Therefore, how to improve the above-mentioned missing problems is the technical difficulty point that the creators of this case want to solve.

In view of the above-mentioned lack of prior art, the creator has been concentrating on research and improvement, and through multi-party experiments and research, has been engaged in the development and research of related fields for many years of experience, and constantly researching and thinking. After many tests, the author has completed the creation. design.

The main purpose of the creation is that it mainly consists of a buck-boost transformer, at least one booster transformer, an autotransformer and a control circuit module, and at least one set of increasing and decreasing transformers is used to improve the stability of the AC. The overall capacity and output voltage range of the voltage regulator are controlled by the control circuit module to increase or decrease the transformer and the autotransformer to achieve an effective control of the output voltage value of the AC voltage regulator.

In order to achieve the above-mentioned effects and purposes, as well as the means, techniques and constructions used, the following description of the contents, features and examples of the creations will enable the reviewers to have a better understanding of the creation.

Please refer to the second and third figures, which are schematic diagrams of the circuit and further circuit diagrams of the creation. It can be clearly seen from the figure. The flow regulator 2 mainly comprises: a buck-boost transformer 3 having a primary side winding and a secondary side winding, wherein the primary side winding is a power input end and the secondary side winding is a power supply output end; at least one increase or decrease The voltage transformer 4 is disposed on one side of the buck-boost transformer 3 and is electrically connected in parallel with the secondary winding of the buck-boost transformer 3, wherein each of the increase/decrease transformers 4 includes a solid state relay 41, and the solid state relay 41 It can also be a power relay; an autotransformer 5 is disposed on one side of one of the increase and decrease transformers 4, and is electrically connected in parallel with the secondary winding (power output end) of the buckling transformer 3, the autotransformer The transformer 5 further includes an induction motor 51, a carbon brush 52 and an increase/decrease transformer 53; a control circuit module 6 disposed on the side of the autotransformer 5 and with the secondary winding of the buckling transformer 3 (power output The terminal is electrically connected in parallel; as shown in the second figure, the voltage value of the final output of the AC voltage regulator 2 is obtained by the control circuit module 6, and is driven and controlled by the control circuit module 6. Voltage transformer 3 and auto-coupling The transformer 5 adjusts the voltage to the required output voltage value, and when the voltage value obtained by the control circuit module 6 and the required voltage value have a small error, the induction motor 51 of the autotransformer 5 is mainly driven. Carbon brush 52 is active to adjust to the desired optimal output voltage value, and if the control is When the voltage value obtained by the circuit module 6 is too large compared with the required voltage value, the solid state relay 41 of the transformer 4 is directly controlled to change and adjust the voltage range by increasing or decreasing the transformer 4; Because the conventional AC voltage regulators only have a single transformer, even if the transformers and autotransformers are adjusted at the same time, the voltage range that can be adjusted is still quite limited. It is assumed that a single booster transformer can be adjusted. The voltage range is 10%. After the coarse adjustment of the transformer, it can be fine-tuned through the carbon brush of the autotransformer, but it can not be adjusted to a more accurate voltage value. Therefore, the AC voltage regulator of this creation The reason why the device 2 is further provided with at least one increase/decrease transformer 4 is mainly to solve the above-mentioned lack of use. For example, it is assumed that the amplitude of the single voltage increase and decrease transformer 4 can be adjusted to 10%, and the third figure is as shown in the third figure. As shown in the figure, when two transformers 4 are provided, a 20% adjustment paragraph amplitude can be provided, and thus, the carbon brush 52 of the autotransformer 5 can be finely adjusted to achieve the phase. The voltage regulation effect of the conventional AC voltage regulator is more precise. Of course, the AC voltage regulator 2 can also increase the number of transformers 4 according to the demand. When the number of transformers 4 is increased or decreased, the adjustment can be adjusted. The voltage accuracy is more accurate, the voltage range can be provided wider and the response speed of the adjustment voltage is more rapid. According to the above, a plurality of transformers 4 are provided, in addition to providing an output of the AC voltage regulator 2 more accurately. More stable voltage, and Another purpose is that since the transformers are both fixed and fixed, if it is necessary to increase the voltage capacity of the entire AC voltage regulator, the conventional practice is to directly increase the number of the transformers and the autotransformers at the same time. The volume of the AC voltage regulator is increased. Moreover, due to the high cost of the autotransformer, the manufacturing cost of the entire AC voltage regulator is relatively increased, compared to the AC voltage regulator 2 of the present invention. In the case of increasing the cost of the autotransformer 5, it is only necessary to increase the number of the transformers 4 to achieve the purpose of increasing the capacity of the AC voltage regulator 2, and the purpose of accurately adjusting the output voltage.

Please refer to the fourth figure, which is another circuit diagram of the creation. As can be clearly seen from the figure, the AC voltage regulator 2 includes: a buck-boost transformer 3 having a primary winding and a secondary winding. Wherein the primary side winding is a power input end, and the secondary side winding is a power supply output end; at least one of the increase and decrease transformers 4 is disposed on one side of the buckling transformer 3 and is connected to the secondary winding of the buckling transformer 3 Parallel electrical connection, wherein each of the increase and decrease transformers 4 includes a solid state relay 41, and the solid state relay 41 can also be a power relay; an inductive voltage regulator 7 is disposed on one side of the increase and decrease transformer 4, and is lifted and lowered The secondary winding (power output end) of the voltage transformer 3 is electrically connected in parallel, and the inductive voltage regulator 7 further comprises an induction horse. Up to 71 and a carbon brush 72; a control circuit module 6, disposed on the side of the autotransformer 5, and electrically connected in parallel with the secondary winding (power output end) of the buckling transformer 3; Different from the above second figure, the autotransformer originally provided may be an inductive voltage regulator 7, and the operation principle is that the voltage value of the final output of the AC voltage regulator 2 is obtained by the control circuit module 6. And driving the induction motor 71 through the control circuit module 6, thereby changing the angle between the rotor and the stator of the inductive voltage regulator 7 to adjust the voltage to the required output voltage value, and the voltage value obtained by the control circuit module 6 When the error with the required voltage value is small, the induction motor 71 that controls the inductive voltage regulator 7 mainly changes the angle between the rotor and the stator to adjust to the required optimal output voltage value, and if the control circuit module When the error between the obtained voltage value and the required voltage value is too large, the solid state relay 41 of each of the transformers 4 is directly controlled to change and adjust the larger voltage range by the pressure increasing and reducing transformer 4.

The above-exemplified embodiments are used to clarify one of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Anyone skilled in the art can make some changes without departing from the spirit and scope of the present invention. Changes and refinements, so the scope of protection of this creation is subject to the definition of the scope of the patent application.

Conventional part:

1‧‧‧AC voltage regulator

11‧‧‧Lifting and lowering transformer

12‧‧‧Control circuit

13‧‧‧Induction motor

14‧‧‧Autotransformer

141‧‧‧carbon brush

15‧‧‧ increase and decrease transformer

This creation:

2‧‧‧AC voltage regulator

3‧‧‧Lifting and lowering transformer

4‧‧‧ increase and decrease transformer

41‧‧‧Solid relay

5‧‧‧Autotransformer

51‧‧‧Induction motor

52‧‧‧carbon brush

53‧‧‧ increase and decrease transformer

6‧‧‧Control circuit module

7‧‧‧Induction voltage regulator

71‧‧‧Induction motor

72‧‧‧Carbon brush

The first figure is a schematic diagram of the circuit used.

The second picture is a schematic diagram of the circuit of this creation.

The third picture is a further circuit diagram of the creation.

The fourth picture is another circuit diagram of the creation.

2‧‧‧AC voltage regulator

3‧‧‧Lifting and lowering transformer

4‧‧‧ increase and decrease transformer

41‧‧‧Solid relay

5‧‧‧Autotransformer

51‧‧‧Induction motor

52‧‧‧carbon brush

6‧‧‧Control circuit module

Claims (6)

The invention relates to a structure improvement of a high-power AC voltage regulator, wherein the AC voltage regulator comprises: a buck-boost transformer having a primary side winding and a secondary side winding; at least one increasing and decreasing transformer disposed on one side of the buck-boost transformer, and The electric circuit is connected in parallel with the secondary winding of the buck-boost transformer; an autotransformer is disposed on one side of the increasing and decreasing transformer, and is electrically connected in parallel with the secondary winding of the buck-boost transformer; a control circuit The module is disposed on one side of the autotransformer and is electrically connected in parallel with the secondary winding of the buck-boost transformer; the main component is to increase the overall capacity of the AC voltage regulator through at least one of the increase and decrease transformers. The output voltage range is driven and controlled by the control circuit module to increase or decrease the transformer and the autotransformer to achieve an effective control of the output voltage value of the AC voltage regulator. The structure of the high-power AC voltage regulator according to the first aspect of the patent application is improved, wherein the primary winding of the step-up and step-down transformer is a power input end, and the secondary side winding is a power output end. For example, the structure of the high-power AC voltage regulator described in claim 1 is improved, wherein each of the increase and decrease transformers includes a solid state Electrical appliances. The structure of the high-power AC voltage regulator described in claim 3 is improved, wherein the solid state relay is another power relay. The structure of the high-power AC voltage regulator described in claim 1 is improved, wherein the autotransformer can also be an inductive voltage regulator. The high power AC voltage regulator according to claim 1 is improved in structure, wherein the autotransformer comprises an induction motor, a carbon brush and an increase and decrease transformer.