Power regulation and voltage regulation integrated 2000V power controller

Abstract

The utility model discloses a 2000V power controller integrating power regulation and voltage regulation, which comprises a box body and a control panel, and a silicon controlled rectifier is arranged on the control panel. The silicon controlled rectifier is provided with a 2000V three-phase load power supply, a thyristor, a mutual inductor, a control signal wiring terminal, a start / stop switch wiring terminal, a fault alarm wiring terminal, a 220V power supply wiring terminal, a power regulation / voltage regulation switching circuit, a dial switch and a state sending wiring terminal, and the silicon controlled rectifier is triggered by a digital circuit to realize phase shift voltage regulation and power regulation. The adjusting mode is automatically changed according to the requirements or properties of different loads; if the load power is too large during starting, a voltage regulation mode is firstly used for working, then the current value is detected to be reduced, then a power regulation mode is automatically switched so as to eliminate harmonic waves during voltage regulation, a phase shift control mode is adopted for voltage regulation, and a cyclic wave power regulation mode is adopted for power regulation.

Description

Technical field:

[0001] The utility model relates to the field of power controllers, in particular to a 2000V power controller with integrated power and voltage regulation. Background technology:

[0002] In modern industrial production, many devices require precise power control to achieve efficient and stable operation. For example, heat treatment equipment, glass manufacturing equipment, and metallurgical equipment all place stringent control requirements on parameters such as temperature and power. Traditional power control methods, such as mechanical switches and transformers, struggle to meet these precise control and rapid response requirements. In industrial heating, melting, drying, and other processes, precise power output control is essential to ensure product quality and production efficiency. Summary of the invention:

[0003] The purpose of the utility model is to solve the existing problems and provide a 2000V power controller with integrated power and voltage regulation.

[0004] The technical solutions of this utility model are as follows:

[0005] A 2000V power controller with integrated power and voltage regulation comprises a housing and a control panel. The control panel is provided with a thyristor, which is provided with a 2000V three-phase load power supply, a thyristor, a mutual inductor, a control signal terminal, a start / stop switch terminal, a fault alarm terminal, a 220V power supply terminal, a power regulation / voltage regulation switching circuit, a dip switch, and a status transmission terminal. The thyristor and mutual inductor are connected to each phase circuit of the 2000V three-phase load power supply. A limiter and a manual potentiometer are externally connected to the circuit connected to the start / stop switch terminal. The thyristor is provided with an output limit adjustment knob and a potentiometer time adjustment knob. The 220V power supply terminal is connected to a 2000V power line via a transformer.

[0006] Preferably, each phase circuit of the 2000V three-phase load power supply has an input end and an output end, the thyristor is located on the input end side, and the mutual inductor is located on the output end side.

[0007] Preferably, a fast fuse is provided at the input end of each phase circuit.

[0008] Preferably, the output end is connected to a load, and the load includes a resistive load, an inductive load and a primary side of a transformer.

[0009] Preferably, a cooling fan is installed on the box.

[0010] Preferably, the status sending terminal is connected to an LED status display light, and the LED status display light includes a yellow light, a green light and a red light.

[0011] Preferably, the resistance of the manual potentiometer is 10KΩ.

[0012] Preferably, the dip switch has a switch position SW1, a switch position SW2 and a switch position SW3.

[0013] Preferably, the fault alarm terminal is connected to an LED.

[0014] The beneficial effects of the present invention are:

[0015] Digital circuits trigger thyristors to achieve phase-shift voltage and power regulation, automatically changing regulation modes based on the demands or nature of different loads. For example, if the load power is too high at startup, it first operates in voltage regulation mode, then automatically switches to power regulation mode after detecting a drop in current to eliminate harmonics during voltage regulation. Voltage regulation utilizes phase-shift control, while power regulation utilizes frequency modulation. This controller features synchronization circuits, automatic phase determination, phase loss protection, slow start-up and shutdown, radiator overtemperature detection, constant current output, current limiting, short-circuit protection, overcurrent protection, load disconnection detection, and LED operating status indication.

[0016] 2. The controller can be used in conjunction with an intelligent PID regulator or PLC with 0-10V or 4-20mA, or it can be used independently and manually. The load wiring can be star-center grounded, star-center ungrounded, or delta load. It can be widely used in various industrial fields to regulate voltage, current, and power. It is suitable for resistive loads, inductive loads, and the primary side of transformers. The main applications are as follows: temperature control of heating elements such as nickel-chromium, iron-chromium-aluminum, and far-infrared heating elements, silicon-molybdenum rods, and silicon-carbon rods; temperature control of salt bath furnaces, industrial frequency induction furnaces, quenching furnaces, and molten glass; primary side control of rectifier transformers and electric furnace transformers; and stepless smooth regulation of voltage, current, power, etc.

[0017] 3. According to different load properties and different usage places, the working mode can be automatically adjusted according to parameters such as input and output voltage, analog signal input and current, that is, voltage regulation, zero-crossing cycle power regulation or periodic power regulation can be adopted to effectively improve work efficiency. Description of the drawings:

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is the circuit diagram of the utility model;

[0020] In the attached figure: 1. Box; 2. Thyristor; 3. 2000V three-phase load power supply; 4. Thyristor; 5. Transformer; 6. Control signal terminal; 7. Start / stop switch terminal; 8. Fault alarm terminal; 9. 220V power supply terminal; 10. Power / voltage regulation switching circuit; 11. DIP switch; 12. Status sending terminal; 13. Limiter; 14. Manual potentiometer; 15. Limit adjustment knob; 16. Potentiometer time adjustment knob. Specific implementation method:

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0026] like Figure 1-2 As shown, a 2000V power controller with integrated power and voltage regulation includes a box 1 and a control panel. The control panel is provided with a thyristor 2. The thyristor 2 is provided with a 2000V three-phase load power supply 3, a thyristor 4, a mutual inductor 5, a control signal terminal 6, a start / stop switch terminal 7, a fault alarm terminal 8, a 220V power supply terminal 9, a power regulation / voltage regulation switching circuit 10, a dip switch 11 and a status sending terminal 12. The thyristor 4 and the mutual inductor 5 are connected to each phase circuit of the 2000V three-phase load power supply 3. The circuit connected to the start / stop switch terminal 7 is externally connected to a limiter 13 and a manual potentiometer 14. The thyristor 2 is provided with an output limit adjustment knob 15 and a potentiometer time adjustment knob 16. The 220V power supply terminal 9 is connected to a 2000V power line through a transformer.

[0027] Specifically, each phase circuit of the 2000V three-phase load power supply 3 has an input end and an output end, the output end is connected to the load, the thyristor 4 is located on the input end side, and the mutual inductor 5 is located on the output end side.

[0028] Specifically, a fast fuse 15 is provided at the input end of each phase circuit.

[0029] Specifically, the output end is connected to a load, and the load includes a resistive load, an inductive load, and a primary side of a transformer.

[0030] Specifically, a cooling fan is installed on the box 1, and the fan power supply voltage is 220V AC and the current is less than 1A.

[0031] Specifically, the status transmission terminal 12 is connected to an LED status display light, which includes yellow, green, and red lights. For example, green indicates normal operation (output); flashing yellow indicates standby (no output); flashing red indicates power phase loss; flashing yellow-green indicates phase loss during initial power-up or control board failure; flashing red-green (fast): overtemperature alarm; solid red indicates load overcurrent or short circuit; flashing red-green indicates thyristor breakdown; and flashing red indicates load disconnection.

[0032] Specifically, the resistance of the manual potentiometer 14 is 10KΩ.

[0033] Specifically, the dip switch 11 has a switch position SW1 , a switch position SW2 , and a switch position SW3 .

[0034] Specifically, the fault alarm terminal 8 is connected to an LED.

[0035] Digital circuits are used to trigger thyristors to achieve phase-shift voltage and power regulation. Voltage regulation uses phase-shift control, while power regulation uses cycle power regulation. This controller features synchronization circuits, automatic phase identification, phase loss protection, slow start-up and slow shutdown upon power-up, radiator overtemperature detection, constant current output, current limiting, short-circuit protection, overcurrent protection, load disconnection detection, and LED operating status indication. Depending on the nature of the load and the specific application location, it can automatically adjust the operating mode based on parameters such as input and output voltage, analog signal input, and current, using voltage regulation, zero-crossing cycle power regulation, or periodic power regulation, effectively improving work efficiency.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A 2000V power controller with integrated power and voltage regulation, comprising a housing and a control panel, characterized in that: The control panel is provided with a thyristor, which is equipped with a 2000V three-phase load power supply, a thyristor, a mutual inductor, a control signal terminal, a start / stop switch terminal, a fault alarm terminal, a 220V power supply terminal, a power regulation / voltage regulation switching circuit, a dip switch and a status sending terminal. The thyristor and the mutual inductor are connected to each phase circuit of the 2000V three-phase load power supply. The circuit connected to the start / stop switch terminal is externally connected to a limiter and a manual potentiometer. The thyristor is provided with an output limit adjustment knob and a potentiometer time adjustment knob. The 220V power supply terminal is connected to a 2000V power line through a transformer.

2. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: Each phase circuit of the 2000V three-phase load power supply has an input end and an output end, the thyristor is located on the input end side, and the mutual inductor is located on the output end side.

3. The 2000V power controller with integrated power and voltage regulation according to claim 2, characterized in that: A fast-acting fuse is provided at the input end of each phase circuit.

4. The 2000V power controller with integrated power and voltage regulation according to claim 2, characterized in that: The output end is connected to a load, and the load includes a resistive load, an inductive load, and a primary side of a transformer.

5. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: A heat dissipation fan is installed on the box body.

6. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: The status sending terminal is connected to an LED status display light, and the LED status display light includes a yellow light, a green light and a red light.

7. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: The resistance of the manual potentiometer is 10KΩ.

8. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: The dip switch has a switch position SW1, a switch position SW2 and a switch position SW3.

9. The 2000V power controller with integrated power and voltage regulation according to claim 1, characterized in that: The fault alarm terminal is connected to an LED.

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