阅读说明：本技术 一种发电机、双电源微机励磁调节与监控装置 (Generator, dual supply microcomputer excitation regulation and monitoring device ) 是由 赵海承 刘鹏 王建坤 刘伟 侯章文 丁玉廷 张炜浩 夏凯 孙宏祥 许德龙 冯玉婷 于 2019-09-27 设计创作，主要内容包括：本发明提供一种发电机、双电源微机励磁调节与监控装置,包括太阳能光伏电池组件、微机、通信模块、用于接入发电机机端电压的变压器T、用于检测发电机机端电流的电流互感器TA、用于检测发电机机端电压的电压互感器TV、以及用于输出励磁直流电到发电机的励磁线圈L上的直流斩波电路和整流电路,其中：太阳能光伏电池组件的输出端与直流斩波电路的输入端相连；电流互感器TA的输出端与电压互感器TV的输出端,均通过信号调理电路与微机信号连接；微机通过PWM控制电路与直流斩波电路电控连接；微机与通信模块信号连接；变压器T的输出端与整流电路的输入端电连接。本发明用于方便提高励磁线圈的励磁能力,继而降低资源浪费与成本浪费。(The invention provides a generator and dual-power microcomputer excitation adjusting and monitoring device, which comprises a solar photovoltaic battery component, a microcomputer, a communication module, a transformer T for accessing generator terminal voltage, a current transformer TA for detecting generator terminal current, a voltage transformer TV for detecting generator terminal voltage, a direct current chopper circuit and a rectifier circuit, wherein the direct current chopper circuit and the rectifier circuit are used for outputting excitation direct current to an excitation coil L of a generator, and the direct current chopper circuit comprises a power supply module, a power supply module and a power supply module, wherein the power: the output end of the solar photovoltaic cell module is connected with the input end of the direct current chopper circuit; the output end of the current transformer TA and the output end of the voltage transformer TV are in signal connection with the microcomputer through a signal conditioning circuit; the microcomputer is electrically controlled and connected with the direct current chopper circuit through the PWM control circuit; the microcomputer is in signal connection with the communication module; the output end of the transformer T is electrically connected with the input end of the rectifying circuit. The invention is used for conveniently improving the excitation capability of the excitation coil, and then reducing resource waste and cost waste.)

1. The utility model provides a dual supply computer excitation is adjusted and monitoring device, its characterized in that, this system includes solar PV cells subassembly (1), computer (7), communication module (8), be used for inserting generator terminal voltage's transformer T, be used for detecting generator terminal current's current transformer TA, be used for detecting generator terminal voltage's voltage transformer TV and be used for exporting direct current of excitation to direct current chopper circuit (2) and rectifier circuit (3) on the excitation coil L of generator, wherein:

the output end of the solar photovoltaic cell component (1) is connected with the input end of the direct current chopper circuit (2);

the output end of the current transformer TA and the output end of the voltage transformer TV are in signal connection with a microcomputer (7) through a signal conditioning circuit (4);

the microcomputer (7) is electrically connected with the direct current chopper circuit (2) through the PWM control circuit (5);

the microcomputer (7) is in signal connection with the communication module (8);

the output end of the transformer T is electrically connected with the input end of the rectifying circuit (3).

2. The dual-power microcomputer excitation adjusting and monitoring device according to claim 1, wherein a direct-current voltage detection module (6) is installed at an output end of the solar photovoltaic battery assembly (1), and an output end of the direct-current voltage detection module (6) is connected to an input end of a microcomputer (7).

3. The dual-power microcomputer excitation adjusting and monitoring device according to claim 1 or 2, wherein a storage battery pack (9) is connected in series between the output end of the solar photovoltaic cell assembly (1) and the input end of the direct current chopper circuit (2), and the output end of the solar photovoltaic cell assembly (1) is electrically connected with the input end of the direct current chopper circuit (2) through the storage battery pack (9).

4. The dual power microcomputer excitation regulation and monitoring device according to claim 1 or 2, wherein the microcomputer (7) is connected with a contactless RFID reader (10).

5. The dual power microcomputer excitation regulation and monitoring device according to claim 1 or 2, wherein the communication module (8) comprises at least one of an RS232 interface, an RS485 interface and a GPRS interface connected to the microcomputer (7).

6. The dual-power microcomputer excitation adjusting and monitoring device as claimed in claim 1 or 2, wherein the microcomputer (7) adopts an LPC1768 single chip microcomputer.

7. A generator characterized by integrating the dual power microcomputer excitation adjusting and monitoring device of claim 1 or 2 thereon.

8. The generator according to claim 7, characterized in that a storage battery pack (9) is connected in series between the output end of the solar photovoltaic cell module (1) and the input end of the DC chopper circuit (2), and the output end of the solar photovoltaic cell module (1) is electrically connected with the input end of the DC chopper circuit (2) through the storage battery pack (9).

9. Generator according to claim 7, characterized in that the microcomputer (7) is associated with a contactless RFID reader (10).

10. Generator according to claim 7, characterized in that the communication module (8) comprises at least one of an RS232 interface, an RS485 interface and a GPRS interface connected to the microcomputer (7).

Technical Field

The invention relates to the field of generator excitation regulation, in particular to a generator and a dual-power microcomputer excitation regulation and monitoring device.

Background

The generator plays a very important role in people's life. At present, smelting, paper making and other processes of sugar mills and chemical enterprises need self-provided generators.

The excitation control device of the generator is an important component of the power system, and is one of the extremely effective and economic technical means for improving the stability of the power system. However, the existing excitation control device is usually replaced every 2 to 3 years due to the expanded requirement on the excitation capacity of the excitation coil of the generator, so that the resource waste and the cost waste are greatly caused.

Therefore, the invention provides a generator and dual-power microcomputer excitation adjusting and monitoring device which is used for solving the technical problem.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a generator and dual-power microcomputer excitation adjusting and monitoring device, which is convenient for improving the excitation capability of an excitation coil and further reducing the waste of resources and cost.

The invention provides a double-power microcomputer excitation adjusting and monitoring device, which comprises a solar photovoltaic battery component, a microcomputer, a communication module, a transformer T for accessing the voltage at the generator end of a generator, a current transformer TA for detecting the current at the generator end, a voltage transformer TV for detecting the voltage at the generator end, a direct current chopper circuit and a rectifier circuit, wherein the direct current chopper circuit and the rectifier circuit are used for outputting excitation direct current to an excitation coil L of the generator, and the double-power microcomputer excitation adjusting and monitoring device comprises a power supply module, a power supply:

the output end of the solar photovoltaic cell module is connected with the input end of the direct current chopper circuit;

the output end of the current transformer TA and the output end of the voltage transformer TV are in signal connection with the microcomputer through a signal conditioning circuit;

the microcomputer is electrically controlled and connected with the direct current chopper circuit through the PWM control circuit;

the microcomputer is in signal connection with the communication module;

the output end of the transformer T is electrically connected with the input end of the rectifying circuit.

Furthermore, the output end of the solar photovoltaic cell module is provided with a direct-current voltage detection module, and the output end of the direct-current voltage detection module is connected to the input end of the microcomputer.

As a further limitation of the invention, a storage battery pack is connected in series between the output end of the solar photovoltaic cell module and the input end of the direct current chopper circuit, and the output end of the solar photovoltaic cell module is electrically connected with the input end of the direct current chopper circuit through the storage battery pack.

Further, the microcomputer is connected with a non-contact RFID card reader.

Further, the communication module comprises at least one of an RS232 interface, an RS485 interface and a GPRS interface which are connected with the microcomputer.

Further, the microcomputer adopts an LPCI768 single chip microcomputer.

In addition, the invention provides a generator, which is integrated with the dual-power microcomputer excitation adjusting and monitoring device.

The invention has the beneficial effects that:

(1) the invention provides a generator and dual-power microcomputer excitation adjusting and monitoring device which comprises a microcomputer, a communication module and a direct current chopper circuit, wherein the direct current chopper circuit is used for outputting excitation direct current to an excitation coil L of a generator, the microcomputer is in electric control connection with the direct current chopper circuit through a PWM control circuit, the microcomputer is in signal connection with the communication module, and when the device is used, a user can adjust the excitation capacity of the excitation coil L of the generator through the communication module, so that the device is beneficial to reducing the replacement frequency of the excitation device of the generator to a certain extent, and further is beneficial to reducing the waste of resources and cost to a certain extent.

(2) According to the generator and dual-power microcomputer excitation adjusting and monitoring device, the solar photovoltaic battery assembly is used for providing direct current, the generator terminal voltage is rectified and then is used for providing direct current, so that when the generator is excited (particularly when the generator is excited in a separate excitation mode), the fact that the excited power is finally converted from solar energy is achieved, and compared with the traditional excitation control, the system is environment-friendly.

In addition, the invention has reliable design principle, simple structure and very wide application prospect.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic block diagram of a system according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a usage state of the system according to an embodiment of the present invention.

Fig. 3 is a schematic block diagram of a system according to an embodiment of the present invention.

Fig. 4 is a schematic block diagram of a system according to an embodiment of the present invention.

Wherein: 1. the system comprises a solar photovoltaic battery component, 2, a direct current chopper circuit, 3, a rectifying circuit, 4, a signal conditioning circuit, 5, a PWM control circuit, 6, a direct current voltage detection module, 7, a microcomputer, 8, a communication module, 9, a storage battery pack, 10, a non-contact RFID card reader, 11, a generator, 12 and a stator winding.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following explains key terms appearing in the present invention.