Power output equipment capable of outputting various electric energy

Abstract

The utility model relates to a power supply output device capable of outputting various kinds of electric energy, comprising a three-phase AC generator, the output of the three-phase AC generator is used as a power supply G, and at the same time, the power supply G passes through a first smoothing reactor, then is rectified by a rectification unit, and then is stabilized by a filter capacitor, and then outputs a voltage-adjustable DC as a DC power supply D; the direct current is supplied to the first inversion unit and the second inversion unit at the same time, and the first inversion unit and the second inversion unit respectively pass through the second smoothing reactor and the third smoothing reactor and then are output to serve as an intermediate frequency power supply Z and a power frequency power supply G1. The equipment can output various electric energy including direct current and alternating current with different frequencies, and is simple in structure and easy to implement.

Description

Technical Field

[0001] The utility model relates to a power output device which can output multiple electric energies. Background Art

[0002] Electrical equipment has various requirements for electrical energy types. In order to meet the needs of different electrical equipment, it is often necessary to configure a variety of power supply equipment that meets the requirements of the electrical equipment, which is not only economical but also occupies space. Some of the power conversion devices disclosed in the prior art have a single function and cannot output AC power and DC power at the same time. Although some have relatively rich switching and output functions, they are complex in structure and have high implementation costs. Patent CN202020968673.7 discloses an AC-DC rectifier with multiple voltage level outputs, including an AC-DC rectifier module, a DC switch module, a DC transformer, an output voltage selection module, an output sensor module, and a main control module; the AC-DC rectifier module is used to convert the input AC power into DC power through rectification, the DC switch module is used to shunt the DC power to control the current at the input end of the DC transformer, the DC transformer is used to convert the voltage of the DC power input from the input end of the DC transformer into multiple voltage levels, the main control module controls the output voltage selection module to select the voltage output by the DC transformer as a specified voltage level by detecting the voltage of the rechargeable battery, and the output sensor module is used to output the voltage level selected by the output voltage selection module to the rechargeable battery; thereby realizing constant current and constant voltage charging of various battery packs with different voltages. However, the AC-DC rectifier can only output DC power, and the implementation structure is complex. Summary of the invention

[0003] The utility model aims to provide a power supply output device capable of outputting a variety of electric energies. The device can output a variety of electric energies including direct current and alternating currents of different frequencies, and has a simple structure and is easy to implement.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a power output device that can output multiple electric energies, including a three-phase AC generator, the output of the three-phase AC generator is used as a power supply G, and at the same time, it passes through a first smoothing inductor and then through a rectifier unit for rectification, and then after being stabilized by a filter capacitor, it outputs a DC power with an adjustable voltage as a DC power supply D; the DC power is simultaneously supplied to a first inverter unit and a second inverter unit, and the first inverter unit and the second inverter unit are respectively output after passing through a second smoothing inductor and a third smoothing inductor, as a medium frequency power supply Z and an industrial frequency power supply G1.

[0005] Furthermore, the rectifier unit is composed of six power electronic devices S11 - S16 .

[0006] Furthermore, the first inverter unit is composed of six power electronic devices S21 - S26 .

[0007] Furthermore, the second inverter unit is composed of six power electronic devices S31 - S36 .

[0008] Furthermore, the power electronic device is an IGBT device.

[0009] Furthermore, the values ​​of the voltages D+ and D- of the DC power supply D are adjusted by a PWM1 control signal.

[0010] Furthermore, the output frequency of the intermediate frequency power supply Z is adjusted by a PWM2 control signal.

[0011] Furthermore, the output frequency of the industrial frequency power supply G1 is adjusted by a PWM3 control signal.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a power output device that can output multiple types of electrical energy. The requirements of different types of electrical equipment for different types of electrical energy can be met by one power supply device. The structure is simple and easy to implement, which not only saves the space occupied by the equipment, but also has good economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 4 is a circuit diagram of a power output device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0016] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0017] like Figure 1As shown, this embodiment provides a power output device capable of outputting a variety of electric energies, including a three-phase AC generator, the output of the three-phase AC generator is used as a power source G, and at the same time, after passing through a first smoothing reactor (L11, L21, L31), it is rectified by a rectifier unit, and then stabilized by a filter capacitor C1 to output a DC power with an adjustable voltage as a DC power source D; the DC power is simultaneously supplied to a first inverter unit and a second inverter unit, and the first inverter unit and the second inverter unit are respectively output after passing through a second smoothing reactor (L12, L22, L32) and a third smoothing reactor (L13, L23, L33) as a medium frequency power source Z and an industrial frequency power source G1.

[0018] In this embodiment, the rectifier unit is composed of six power electronic devices S11-S16. The first inverter unit is composed of six power electronic devices S21-S26. The second inverter unit is composed of six power electronic devices S31-S36. The power electronic devices may be IGBT devices.

[0019] In this power output device, the voltage D+ and D- values ​​of the DC power supply D are adjusted by the PWM1 control signal. The output frequency of the medium frequency power supply Z is adjusted by the PWM2 control signal. The output frequency of the industrial frequency power supply G1 is adjusted by the PWM3 control signal. By adjusting the control signals PWM1, PWM2, and PWM3 of each power supply, four types of power output can be formed, and each type of power output is independently controlled. By turning off the unused three power supplies, the remaining type of power supply can output the power of the power supply G at full power.

[0020] It should be noted that the present utility model protects the hardware structure of the device, and its corresponding control method is a well-known technology in the field and does not fall within the protection scope of the present utility model.

[0021] The utility model provides a new type of power output device that can output multiple types of electric energy. It can output direct current D (200-750VDC) to charge new energy vehicles, output medium frequency power Z (400HZ) to heating equipment in steel plants, and output industrial frequency power G1 with a frequency different from that of the generator G (if the generator is 50HZ, it outputs 60HZ, and if the generator is 60HZ, it outputs 50HZ).

[0022] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A power output device capable of outputting multiple types of electrical energy, characterized in that: It comprises a three-phase AC generator, the output of which is used as a power source G, and at the same time, after passing through a first smoothing reactor and then through a rectifying unit for rectification, and then after being stabilized by a filter capacitor, a DC power with an adjustable voltage is output as a DC power source D; the DC power is simultaneously supplied to a first inverter unit and a second inverter unit, and the first inverter unit and the second inverter unit are respectively output after passing through a second smoothing reactor and a third smoothing reactor, as a medium frequency power source Z and an industrial frequency power source G1.

2. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The rectifier unit is composed of six power electronic devices S11 - S16 .

3. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The first inverter unit is composed of six power electronic devices S21 - S26 .

4. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The second inverter unit is composed of six power electronic devices S31 - S36 .

5. A power output device capable of outputting multiple types of electrical energy according to claim 2, 3 or 4, characterized in that: The power electronic device is an IGBT device.

6. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The voltages D+ and D- of the DC power supply D are adjusted by the PWM1 control signal.

7. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The output frequency of the intermediate frequency power supply Z is adjusted by the PWM2 control signal.

8. A power output device capable of outputting multiple types of electrical energy according to claim 1, characterized in that: The output frequency of the industrial frequency power supply G1 is adjusted by the PWM3 control signal.

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