Plug-and-play method for electric energy quality treatment device

Abstract

The invention relates to the technical field of low-voltage power grid operation and maintenance, in particular to a plug-and-play method for an electric energy quality management device, and the method comprises the steps: enabling a built-in APP of the electric energy quality management device to execute a collection request program at intervals; the electric energy quality management device sends broadcast data carrying own feature information to the transformer area intelligent fusion terminal; after receiving the broadcast data of the electric energy quality management device, the transformer area intelligent fusion terminal judges whether the broadcast data is the electric energy quality management device managed and collected by the transformer area intelligent fusion terminal according to feature information carried in the broadcast data of the electric energy quality management device, if yes, a connection request is initiated to the electric energy quality management device, and otherwise, no operation is carried out; and the electric energy quality management device is connected with the transformer area intelligent fusion terminal and then carries out event reporting or data timing reporting. According to the invention, rapid deployment and plug-and-play of the low-voltage line electric energy quality treatment device are realized, and the use convenience of the equipment and the stability of the system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage power grid operation and maintenance, and in particular to a plug-and-play method for a power quality management device. Background Art

[0002] In today's society, the widespread use of power electronic equipment has brought many conveniences, but it has also affected the power quality of low-voltage power grids. These power electronic equipment will produce problems such as voltage fluctuations and harmonic pollution during operation, which poses challenges to the stable operation of the power grid and the normal operation of electrical equipment.

[0003] Traditional power quality management devices, such as passive filters and static VAR generators, are widely used. However, these power quality management devices are complex in the installation and configuration process, and are not easy to deploy and use quickly. After the equipment is installed, some parameters need to be manually configured before data collection can be carried out. First of all, traditional power quality management devices usually communicate through 485, and data reporting belongs to the question-and-answer reporting mode, which cannot realize active data reporting. Professionals are required to perform manual operations during installation and debugging, which requires a certain amount of time and technical support. Secondly, the configuration process of these power quality management devices is relatively cumbersome, and additional detailed manual settings and adjustments of the parameters of the power grid and the performance of the device are required to ensure its normal operation. Summary of the invention

[0004] In view of the defects of the prior art, the present invention provides a plug-and-play method for a power quality management device, which simplifies the installation process of the power quality management device, enables non-professionals to quickly and correctly install the device, and can realize rapid deployment of the power quality management device.

[0005] In order to solve the technical problem, the technical solution adopted by the present invention is: a plug-and-play method for a power quality control device, comprising the following steps: S01. The built-in APP of the power quality management device executes the collection request program at a specific interval. If the sampled data generates an over-limit event or reaches the data reporting time, the power quality management device sends broadcast data carrying its own characteristic information to the intelligent fusion terminal in the substation area; S02. After receiving the broadcast data of the power quality management device, the intelligent fusion terminal in the substation area determines whether it is the power quality management device managed and collected by itself according to the characteristic information carried in the broadcast data of the power quality management device. If so, it initiates a connection request to the power quality management device, otherwise, it does not perform any operation; S03. After the power quality management device establishes a connection with the intelligent fusion terminal of the substation, it reports events or reports data regularly.

[0006] Furthermore, step S03 is specifically as follows: S31. If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation area and there is no subsequent frame, the power quality management device disconnects and re-enters deep sleep; S32: If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation area, but there are subsequent frames, it waits for the uplink message of the power quality management device to continue data interaction, disconnects after the interaction is completed, and the power quality management device enters deep sleep; S33. If no confirmation frame is received within the set time T1, the power quality management device will disconnect and enter deep sleep, and will wake up again to report data or events after the set time T2. After two failures, it will be treated as a report failure. If the confirmation frame and the event that affects the normal operation of the equipment occur at the same time, only the current real-time data and event alarms will be reported after the set time T2, and the previous historical data will no longer be reported.

[0007] Furthermore, the limit-exceeding events include voltage limit-exceeding, current limit-exceeding, load limit-exceeding and power factor limit-exceeding.

[0008] Furthermore, it is determined whether it is a power quality management device managed and collected by itself, and the judgment process is: parsing the broadcast data, and determining whether the communication address conforms to the agreed power quality management device communication address specification.

[0009] Furthermore, the reported data includes voltage, current, and power.

[0010] Furthermore, events that affect the normal operation of the equipment include power meter loss of voltage, power meter undervoltage, power meter overcurrent, power meter power supply abnormality, and power meter reset.

[0011] Furthermore, the power quality management device and the intelligent fusion terminal of the substation are connected to each other through Bluetooth.

[0012] Furthermore, the built-in APP of the power quality management device executes the collection request program every 5 seconds, sets the time T1 to 5 seconds, and sets the time T2 to 5 minutes.

[0013] Beneficial effects of the present invention: The present invention realizes the plug-and-play of the power quality management device through the technology at the software level. Through the above method, the present invention realizes the rapid deployment and plug-and-play of the power quality management device for low-voltage lines, and improves the convenience of equipment use and the stability of the system. In temporary power consumption occasions or emergency situations, it allows users to quickly access the power grid with no or little technical support, and can realize adaptive power grid parameters. The power grid parameters in different regions may be different, such as voltage level, frequency, etc. These parameters can be automatically identified and adapted without manual adjustment, and active reporting of data can be realized, which can transmit information more timely, that is, after the equipment is installed, subsequent data collection and operation of the equipment can be completed automatically. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation on the present invention. In the accompanying drawings: Figure 1 It is an interaction diagram of the power quality management device and the intelligent fusion terminal of the substation according to the embodiment of the present invention; Figure 2 is a flow chart of a plug-and-play method for a power quality management device according to an embodiment of the present invention; Figure 3 4 is a circuit structure diagram of the low-power Bluetooth according to an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] like Figure 1 , 2 As shown, the plug-and-play method for the power quality control device comprises the following steps: Step 1: The built-in APP of the power quality management device executes the collection request program every five seconds, performs local initialization and other preparatory work, and then starts data sampling. If the sampled data generates an over-limit event or reaches the data reporting time, the power quality management device sends broadcast data carrying its own characteristic information to the intelligent fusion terminal in the substation area. Over-limit events include but are not limited to the following situations: voltage over-limit, current over-limit, load over-limit, power factor over-limit and other power data exceeding the normal operating range.

[0017] Step 2: After the intelligent fusion terminal in the substation receives the broadcast data from the power quality management device, it determines whether it is the power quality management device managed and collected by itself based on the characteristic information carried in the broadcast data of the power quality management device. If so, it initiates a connection request to the power quality management device, otherwise no operation is performed.

[0018] Determine whether it is the power quality management device managed and collected by itself. The judgment process is: parse the broadcast data and determine whether the communication address conforms to the agreed power quality management device communication address specification.

[0019] The communication address consists of 12 digits. The communication address is divided into three parts: manufacturer code, device identification, and custom code. The manufacturer code is 4 digits, the device identification is 2 digits, and the custom code is 6 digits, ensuring that the communication addresses of all power quality management devices are unique.

[0020] Step 3: After the power quality management device establishes a connection with the intelligent fusion terminal in the substation, it reports events or reports data regularly. The reported data includes power information such as voltage, current, and power. S3.1. If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation area and there is no subsequent frame, the power quality management device disconnects the Bluetooth connection and re-enters deep sleep; S3.2: If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation, but there are subsequent frames, it waits for the uplink message of the power quality management device to continue data interaction. After the interaction is completed, the connection is disconnected and the power quality management device enters deep sleep; S3.3. If no confirmation frame is received within five seconds, the power quality management device will disconnect and enter deep sleep, and will wake up again after five minutes to report data or events. This process can be repeated up to two times. After two failures, it will be treated as a report failure. If the event that affects the normal operation of the equipment occurs at the same time, only the current real-time data and event alarm will be reported after five minutes, and the previous historical data will no longer be reported. Events that affect the normal operation of the equipment include, but are not limited to: loss of voltage at the energy meter, undervoltage at the energy meter, overcurrent at the energy meter, abnormal power supply at the energy meter, zeroing of the energy meter, etc.

[0021] like Figure 3 As shown, a low-power Bluetooth chip is added to the existing power quality management device and the substation intelligent fusion terminal to ensure that the power quality management device and the substation intelligent fusion terminal can achieve normal Bluetooth communication. Figure 3 The given Bluetooth circuit diagram can be used as the Bluetooth mechanism of the power quality management device, and can also be used as the Bluetooth mechanism in the intelligent fusion terminal of the substation. Figure 3 The chip CSM92F42N is used. SM92F42N is a highly integrated low-power Bluetooth SoC chip suitable for low-power Bluetooth and dedicated 2.4G application scenarios. It supports all Bluetooth LE V5.1 features; integrates a high-performance, low-power Bluetooth baseband RF transceiver, a 32-bit core, supports hardware floating point, and rich functional peripheral units (such as GPIO, UART, ADC, I2S, SPI, I2C, DMA, timer, etc.), while integrating efficient power management. The excellent features make it very suitable for low-power Bluetooth, dedicated 2.4G systems, home automation, sports and leisure equipment, mobile phone accessories, industrial electronics and consumer electronics.

[0022] Finally, it should be noted that the above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them, and the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any technician familiar with the technical field can modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be covered within the protection scope of the present invention.

Claims

1. A plug-and-play method for a power quality control device, characterized in that: The following steps are involved: S01. The built-in APP of the power quality management device executes the collection request program at a specific interval. If the sampled data generates an over-limit event or reaches the data reporting time, the power quality management device sends broadcast data carrying its own characteristic information to the intelligent fusion terminal in the substation area; S02. After receiving the broadcast data of the power quality management device, the intelligent fusion terminal in the substation area determines whether it is the power quality management device managed and collected by itself according to the characteristic information carried in the broadcast data of the power quality management device. If so, it initiates a connection request to the power quality management device, otherwise, it does not perform any operation; S03. After the power quality management device establishes a connection with the intelligent fusion terminal of the substation, it reports events or reports data regularly.

2. The plug-and-play method for power quality control device according to claim 1, characterized in that: Step S03 is specifically as follows: S31. If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation area and there is no subsequent frame, the power quality management device disconnects and re-enters deep sleep; S32: If the power quality management device receives a confirmation frame from the intelligent fusion terminal in the substation area, but there are subsequent frames, it waits for the uplink message of the power quality management device to continue data interaction, disconnects after the interaction is completed, and the power quality management device enters deep sleep; S33. If no confirmation frame is received within the set time T1, the power quality management device will disconnect and enter deep sleep, and will wake up again to report data or events after the set time T2. After two failures, it will be treated as a report failure. If the confirmation frame and the event that affects the normal operation of the equipment occur at the same time, only the current real-time data and event alarms will be reported after the set time T2, and the previous historical data will no longer be reported.

3. The plug-and-play method for power quality control device according to claim 1, characterized in that: The limit-out events include voltage limit-out, current limit-out, load limit-out and power factor limit-out.

4. The plug-and-play method for power quality control device according to claim 1, characterized in that: Determine whether it is the power quality management device managed and collected by itself. The judgment process is: parse the broadcast data and determine whether the communication address conforms to the agreed power quality management device communication address specification.

5. The plug-and-play method for power quality control device according to claim 1, characterized in that: The reported data includes voltage, current and power.

6. The plug-and-play method for power quality control device according to claim 1, characterized in that: Events that affect the normal operation of the equipment include meter loss of voltage, meter undervoltage, meter overcurrent, meter power supply abnormality, and meter reset.

7. The plug-and-play method for power quality control device according to claim 1 or 2, characterized in that: The power quality management device and the intelligent fusion terminal in the substation communicate with each other via Bluetooth.

8. The plug-and-play method for power quality control device according to claim 1, characterized in that: The built-in APP of the power quality management device executes the collection request program every 5 seconds, setting time T1 to 5 seconds and setting time T2 to 5 minutes.

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