CN217543292U - Partial discharge detection control system - Google Patents
Partial discharge detection control system Download PDFInfo
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- CN217543292U CN217543292U CN202220979813.XU CN202220979813U CN217543292U CN 217543292 U CN217543292 U CN 217543292U CN 202220979813 U CN202220979813 U CN 202220979813U CN 217543292 U CN217543292 U CN 217543292U
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Abstract
The application discloses a partial discharge detection control system, which comprises a microcontroller, a plurality of data acquisition units for acquiring different partial discharge signals and a power module, and is characterized in that the power module is sequentially connected with a dormancy control module and the data acquisition units; the microcontroller controls the sleep control module to be switched on or switched off so as to realize synchronous acquisition of various partial discharge signals. This application sets up dormancy control module between power module and data acquisition unit, through microcontroller control dormancy control module's switch-on or disconnection, thereby realize gathering when a plurality of office put the signal, make data acquisition module and communication module need not to be in operating condition always, only need set for sampling period T and sampling time T, the length of time of dormancy control module switch-on T in each sampling period, just can accomplish once sampling, both satisfy the sampling demand of system and greatly reduced entire system's consumption.
Description
Technical Field
The application relates to the technical field of local monitoring, in particular to a partial discharge detection control system.
Background
The high-voltage switch cabinet is very important electrical equipment in a power system, and currently, 10kV and 35kV metal enclosed switch complete equipment is widely applied to all transformer substations in the power system. Partial discharge phenomenon can take place for high tension switchgear in service because insulating degradation, and this kind of discharge constantly spreads and develops, can arouse insulating damage, if give its development then can lead to insulating dielectric properties of losing and cause the accident. Therefore, a plurality of detection systems or detection devices for detecting local discharge of a switch cabinet are provided, and generally, a plurality of detection units are provided and are respectively used for detecting ultrasonic signals, ultrahigh frequency signals, earth electric wave signals and the like, so that the purposes of discharge positioning or defect identification are achieved. In addition, for the convenience of detection, the detection system or the detection device mostly adopts the battery for power supply, and a plurality of detection units acquire in real time and the controller receives and processes in real time and then sends the data through the communication module, so that the power consumption of the whole system is large, the working time that the battery can support is limited, the battery needs to be frequently replaced, and the continuity of equipment monitoring is not facilitated.
Chinese patent CN102692588A discloses a local discharge detection positioning system of a high-voltage switch cabinet, which comprises an ultrasonic sensor, a transient ground electric wave sensor, a signal processing and acquisition module and a tablet personal computer; the signal processing and collecting module comprises a transient ground electric wave signal detection amplifier, an ultrasonic signal filtering amplifier, a USB data collecting card and a rechargeable battery; the ultrasonic signal filter amplifier is connected with the rechargeable battery, the ultrasonic sensor and the USB data acquisition card respectively; the transient earth electric wave signal detection amplifier is connected with the rechargeable battery, the transient earth electric wave sensor and the USB data acquisition card respectively. This patent is through rechargeable battery for ultrasonic signal filter amplifier direct power supply, has the unable synchronous acquisition that realizes equally, and system's consumption is big, needs the problem of frequent charging, is unfavorable for the continuation of battery life.
Disclosure of Invention
The utility model provides a plurality of detecting element real-time collection, the controller real-time reception that exist among the prior art are solved and are handled and send through communication module again, lead to the entire system consumption big, the fast technical problem of battery power consumption, provide a partial discharge detection control system.
The utility model discloses a realize through following technical measure: a partial discharge detection control system comprises a microcontroller, a plurality of data acquisition units for acquiring different partial discharge signals and a power module, wherein the power module is sequentially connected with a dormancy control module and the data acquisition units; the microcontroller controls the sleep control module to be switched on or switched off so as to realize synchronous acquisition of various partial discharge signals.
In the application, set up dormancy control module between power module and data acquisition unit, through microcontroller control dormancy control module's switch-on or disconnection, thereby realize gathering when a plurality of office put the signal, make data acquisition module and communication module need not to be in operating condition always, only need set for sampling period T and sampling time T, the length of time of dormancy control module switch-on T in each sampling period, just can accomplish once sampling, both satisfy the sampling demand of system and greatly reduced entire system's consumption.
Preferably, the power module is supplied with power by an independent battery, and the battery voltage is converted into the required voltage through the voltage conversion chip.
In this application, adopt independent battery power supply to be convenient for realize detecting system's mobility, increase dormancy control module and reduced entire system's power loss, independent battery can be non-rechargeable battery or rechargeable battery, because whole low power dissipation, adopt non-rechargeable battery also can guarantee that detecting system's life obtains the extension, if adopt rechargeable battery also to help reducing the number of times that charges of battery.
Preferably, the data acquisition unit comprises one or more of a transient ground electric wave acquisition unit, an ultrasonic acquisition unit and an ultrahigh frequency acquisition unit, and the data acquisition unit transmits the acquired partial discharge signal to the microcontroller.
In the application, the transient earth electric wave acquisition unit, the ultrasonic acquisition unit and the ultrahigh frequency acquisition unit are integrated, so that joint detection of three detection methods of ultrasonic, transient earth voltage and ultrahigh frequency can be realized, information of each wave band generated by discharge in the switch cabinet can be effectively captured, detection information of each method is integrated, deep analysis is carried out on discharge characteristics, and the defect reasons are accurately diagnosed.
Preferably, the transient earth electric wave collecting unit includes a transient earth electric wave collecting antenna, a transient earth electric wave collecting filter circuit, and a transient earth electric wave detecting circuit, which are connected in sequence, and the sleep control module is electrically connected to the transient earth electric wave detecting circuit.
Preferably, the ultrasonic wave acquisition unit comprises an ultrasonic sensor and an ultrasonic wave acquisition circuit which are sequentially connected, and the dormancy control module is electrically connected with the ultrasonic wave acquisition circuit.
Preferably, the ultrahigh frequency acquisition unit comprises an ultrahigh frequency acquisition antenna, an ultrahigh frequency filter circuit, an ultrahigh frequency amplification circuit and an ultrahigh frequency detection circuit which are connected in sequence, and the sleep control module is electrically connected with the ultrahigh frequency detection circuit.
Preferably, the intelligent sleep control system further comprises a temperature and humidity acquisition unit which is electrically connected with the sleep control module.
Preferably, the digital television set further comprises a communication module, the microcontroller transmits the received partial discharge signal to the outside through the communication module, and the communication module is a communication unit integrated on the microcontroller or an independent unit connected with the microcontroller.
Preferably, when the communication module is an independent unit, the battery module is connected with the communication module through the dormancy control module to supply power to the communication module.
Preferably, the sleep control module is implemented by using an MOS transistor, a timing circuit, or a timing chip.
In this application, dormancy control module's effect lies in opening the timing power supply, and the power is the system power supply when needing the sampling, and when need not the sampling, power supply loop cuts off, realizes regularly concentrating the sampling.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiment(s) of the application and together with the description serve to explain the application and not limit the application. In the drawings:
fig. 1 is a block diagram of a power supply structure of a partial discharge detection system;
fig. 2 is a block diagram of a signal control structure of the partial discharge detection system;
FIG. 3 is a plurality of data detection units connected to a microcontroller;
FIG. 4 is a power module powered by a battery;
in the figure: 110. the system comprises a microcontroller, 120, a power module, 130, a dormancy control module, 140, a communication module, 150, a data acquisition unit, 151, a transient earth electric wave acquisition unit, 152, an ultrasonic acquisition unit, 153, an ultrahigh frequency acquisition unit, 154, a temperature and humidity acquisition unit, 121, a battery, 122, a control switch, 123 and a voltage conversion chip.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
A partial discharge detection control system comprises a microcontroller 110, a data acquisition unit 150 for acquiring different partial discharge signals, a power module 120 and a communication module 140, wherein the data acquisition unit 150 sends the acquired partial discharge signals to the microcontroller 110, and the microcontroller 110 transmits the received partial discharge signals to the outside through the communication module 140. The communication module 140 is a communication unit integrated on the microcontroller, or an independent unit connected to the microcontroller.
As shown in fig. 1-2, the power module 120, the sleep control module 130, and the data acquisition unit 150 are connected in sequence, and the power module 120 supplies power to the data acquisition unit 150 through the sleep control module. The sleep control module is electrically connected with the microcontroller 110, the microcontroller 110 controls the on-off of the sleep control module, so as to control the on-off of the power supply path of the data acquisition units, realize the synchronous acquisition of the detection data of the data acquisition units 150, and the power supply module 120 directly supplies power to the microcontroller 110. The power supply dormancy control module is realized by an MOS tube or a timing circuit or a timing chip, and can also be composed of a logic device, and the power supply dormancy control module mainly plays a role in timing on-off. Taking an MOS transistor as an example, a pin connected between the microcontroller 110 and the MOS transistor outputs a high level, so that the MOS transistor is in an off state, and the power supply of the power supply module 120 is stopped; the pin of the microcontroller 110 connected to the MOS transistor outputs a low level, so that the MOS transistor is in a conducting state, and the power module 120 starts to supply power. As long as the switching period of high and low levels is controlled, the sampling period and the sampling duration can be informed, and periodic timing sampling is realized.
As shown in fig. 3, the data acquisition unit 150 is configured to acquire the partial discharge signal, and may be one or more of a transient earth electric wave acquisition unit 151, an ultrasonic acquisition unit 152, an ultrahigh frequency acquisition unit 153, and a temperature and humidity acquisition unit 154. The transient ground electric wave acquisition unit 151 includes a transient ground electric wave acquisition antenna, a transient ground electric wave acquisition filter circuit, and a transient ground electric wave detection circuit, which are connected in sequence, and the transient ground electric wave acquisition antenna is configured to acquire ground electric wave signals, and transmit the ground electric wave signals to the microcontroller 110 after filtering and detection. The power module 120 is electrically connected to the transient ground electric wave detection circuit through the sleep control module to supply power to the transient ground electric wave detection circuit, and when the microcontroller 110 controls the sleep control module to be in the off state, the power module 120 stops supplying power to the transient ground electric wave detection circuit, the transient ground electric wave collection filter circuit and the transient ground electric wave detection circuit stop working, and the ground electric wave signal collection stops. The ultrasonic acquisition unit 152 includes an ultrasonic sensor and an ultrasonic acquisition circuit which are connected in sequence, and the ultrasonic sensor is used for acquiring ultrasonic signals. The power module 120 supplies power to the ultrasonic wave acquisition circuit through the sleep control module, and when the microcontroller 110 controls the sleep control module to be in an off state, the power module 120 stops supplying power to the ultrasonic wave acquisition circuit, and ultrasonic wave signal acquisition stops. The specific circuit forms of the transient earth electric wave acquisition filter circuit, the transient earth electric wave detection circuit and the ultrasonic acquisition circuit belong to common circuits in the industry, and are not described in detail in the application.
The ultrahigh frequency acquisition unit 153 includes an ultrahigh frequency acquisition antenna, an ultrahigh frequency filter circuit, an ultrahigh frequency amplifier circuit, and an ultrahigh frequency detector circuit, which are connected in sequence. The ultrahigh frequency acquisition antenna is used for acquiring ultrahigh frequency signals, the power module 120 supplies power to the ultrahigh frequency detection circuit through the dormancy control module, and when the microcontroller 110 controls the dormancy control module to be in an off state, the power module 120 stops supplying power to the ultrasonic acquisition circuit, and ultrasonic signal acquisition stops. The ultrahigh frequency filter circuit consists of a capacitor and an inductor and filters ultrahigh frequency electromagnetic wave signals except 300-1500 MHz; the ultrahigh frequency amplifying circuit consists of a dual-rail-to-rail zero-input crossover distortion low-power-consumption amplifier, a diode and a resistance-capacitance discharge, the amplified signal output is provided for the resistance-capacitance discharge through the diode, the signal output by the resistance-capacitance discharge is transmitted to the microcontroller 110 through the ultrahigh frequency detection circuit, and the ultrahigh frequency detection circuit consists of a detection chip and a peripheral resistance-capacitance component.
Similarly, the temperature and humidity acquisition unit 154 is controlled similarly, the power module 120 supplies power to the temperature and humidity acquisition unit 154 through the sleep control module, and when the microcontroller 110 controls the sleep control module to be in the off state, the temperature and humidity acquisition unit 154 stops acquiring. Therefore, the partial discharge detection system can control various partial discharge signals to be synchronously acquired at regular time through the dormancy control module, and the data acquisition module is in a dormant state at the rest time, so that the power consumption is reduced.
The communication module 140 may optionally include a 433Mhz wireless module and a 433Mhz antenna connected to each other, or a 470Mhz wireless module and a 470Mhz antenna connected to each other, or a 2.4Ghz wireless module and a 2.4Ghz antenna connected to each other, so as to adapt to different communication requirements. When the communication module is an independent unit, the battery module is connected with the communication module through the dormancy control module to supply power for the communication module, and synchronous transmission of collected data is achieved. When the microcontroller 110 controls the sleep control module to be in the off state, the wireless module stops working. Therefore, the partial discharge detection system can control the collection and the sending of partial discharge signals to be synchronously carried out through the dormancy control module, and in the rest time, the wireless module and the data acquisition module are both in the dormant state, so that the electric quantity loss is reduced.
As shown in fig. 4, in order to realize the portability of the detection system, the power module 120 may be powered by a separate battery, the power module 120 includes a battery 121 and a voltage conversion chip 123, and is provided with a control switch 122, the battery 121 is connected to the voltage conversion chip 123 through the control switch 122, and the voltage control chip performs voltage conversion to convert the battery voltage into a stable voltage required by the system. The battery is also connected to the microcontroller 110 pin for battery voltage detection. The independent battery may be a rechargeable battery or a non-rechargeable battery.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A partial discharge detection control system comprises a microcontroller, a plurality of data acquisition units for acquiring different partial discharge signals and a power module, and is characterized in that the power module is sequentially connected with a dormancy control module and the data acquisition units; the microcontroller controls the sleep control module to be switched on or switched off so as to realize synchronous acquisition of various partial discharge signals.
2. The partial discharge detection control system according to claim 1, wherein the power module is powered by a separate battery, and the battery voltage is converted into the required voltage by the voltage conversion chip.
3. The partial discharge detection control system according to claim 1, wherein the data acquisition unit comprises one or more of a transient ground electric wave acquisition unit, an ultrasonic acquisition unit, an ultrahigh frequency acquisition unit and a temperature and humidity acquisition unit, and the data acquisition unit transmits the acquired partial discharge signal to the microcontroller.
4. The partial discharge detection control system according to claim 3, wherein the transient earth electric wave collecting unit includes a transient earth electric wave collecting antenna, a transient earth electric wave collecting filter circuit, and a transient earth electric wave detecting circuit, which are connected in sequence, and the sleep control module is electrically connected to the transient earth electric wave detecting circuit.
5. The partial discharge detection control system according to claim 3, wherein the ultrasonic acquisition unit includes an ultrasonic sensor and an ultrasonic acquisition circuit, which are connected in sequence, and the sleep control module is electrically connected to the ultrasonic acquisition circuit.
6. The partial discharge detection control system according to claim 3, wherein the uhf acquisition unit comprises an uhf acquisition antenna, an uhf filter circuit, an uhf amplifier circuit, and an uhf detector circuit, which are connected in sequence, and the sleep control module is electrically connected to the uhf detector circuit.
7. The partial discharge detection control system according to claim 3, further comprising a temperature and humidity acquisition unit, wherein the temperature and humidity acquisition unit is electrically connected to the sleep control module.
8. The partial discharge detection control system according to claim 1, further comprising a communication module, wherein the communication module is a communication unit integrated on the microcontroller or an independent unit connected to the microcontroller, and the microcontroller transmits the received partial discharge signal to the outside through the communication module.
9. The system according to claim 8, wherein when the communication module is an independent unit, the battery module is connected to the communication module through the sleep control module to supply power to the communication module.
10. The partial discharge detection control system according to any one of claims 1 to 9, wherein the sleep control module is implemented by using a MOS transistor, a timing circuit, or a timing chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220979813.XU CN217543292U (en) | 2022-04-26 | 2022-04-26 | Partial discharge detection control system |
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| CN202220979813.XU CN217543292U (en) | 2022-04-26 | 2022-04-26 | Partial discharge detection control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117007136A (en) * | 2023-10-07 | 2023-11-07 | 深圳市千岩科技有限公司 | Environment perception data detection method, device and equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117007136A (en) * | 2023-10-07 | 2023-11-07 | 深圳市千岩科技有限公司 | Environment perception data detection method, device and equipment |
| CN117007136B (en) * | 2023-10-07 | 2023-12-26 | 深圳市千岩科技有限公司 | Environment perception data detection method, device and equipment |
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