CN206258523U - A kind of distribution network electric energy quality monitoring device based on cloud platform - Google Patents

Abstract

The utility model discloses a distribution network power quality monitoring device based on a cloud platform, comprising a data detection terminal, a cloud server terminal and a remote monitoring terminal; the data detection terminal and the remote monitoring terminal are respectively connected to the cloud server terminal; the The data detection terminal includes a voltage transformer, a current transformer, a data transmission module, an analog-to-digital conversion module, and a data processing module. The cloud server terminal includes a control module and an identification module, a data storage module, a clock module, and a communication module and power management module; the whole system can operate intelligently without personnel on duty, can monitor the power grid comprehensively and uninterruptedly, and can detect faults in time, changing the situation of being always in a passive position in power quality management and improving Quality of service of the grid system.

Description

A distribution network power quality monitoring device based on cloud platform

technical field

The utility model relates to a power quality monitoring system, in particular to a cloud platform-based distribution network power quality monitoring device, which belongs to the field of intelligent monitoring.

Background technique

With the rapid development of science and technology and the national economy, the power quality problems caused by a large number of unbalanced and non-linear electrical equipment have attracted widespread attention. Safe and reliable supply. By realizing the monitoring of the power quality of the distribution network, the real-time monitoring and control of its power quality problems has important practical value for the supervision and improvement of the power quality of the whole network.

Power quality problems mainly exist in the following aspects in the distribution network: frequency deviation, voltage deviation, three-phase voltage imbalance, harmonics, voltage fluctuations and flicker, etc. At present, there is no real-time online monitoring system in the distribution network. The monitoring of the power quality of the distribution network is mainly to find problems and complains, and then to test and solve them. In the power quality management, it is always in a passive position and cannot adapt to the first-class The development requirements of smart distribution network.

In the context of the gradual maturity of network technology, the traditional distribution network power quality control system has problems such as imperfect equipment management and difficult maintenance, and most of the existing systems deal with direct control of a single command. To be in-depth. The wireless sensor network is an important foundation of the Internet of Things technology, which solves the problem of interconnection. A large number of sensor nodes with sensing, processing and wireless communication capabilities form a multi-hop self-organizing network system to complete the established tasks.

Utility model content

The technical problem to be solved by the utility model is to provide a cloud platform-based distribution network power quality monitoring device for the deficiency of the background technology.

The utility model adopts the following technical solutions for solving the above-mentioned technical problems

A distribution network power quality monitoring device based on a cloud platform, comprising a data detection terminal, a cloud server terminal and a remote monitoring terminal; the data detection terminal and the remote monitoring terminal are respectively connected to the cloud server terminal; the data detection terminal includes a voltage transformer, current transformer, data transmission module, analog-to-digital conversion module, and data processing module, the voltage transformer and current transformer are respectively connected to the data processing module through an analog-to-digital signal converter, and the data processing module is connected to the data transmission module , the cloud server terminal includes a control module and an identification module, a data storage module, a clock module, a communication module and a power management module respectively connected thereto.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the remote monitoring terminal includes a DSP module and a touch screen display module and a Web access terminal respectively connected thereto.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the remote monitoring terminal also includes an alarm device, and the alarm device includes an emergency power-off device and a power-off alarm device. The emergency power-off device and the power-off alarm device are respectively connected with the DSP module.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the voltage transformer adopts a voltage detection module whose chip type is HVD100.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the current transformer adopts a current detection module whose chip type is KLARI-MOD SC.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the analog-to-digital conversion module adopts an analog-to-digital converter with a chip model of AD7794.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the chip models of the data processing module and the control module are both STM32.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the chip model of the clock module is DS1302.

As a further preferred solution of the cloud platform-based distribution network power quality monitoring device of the present invention, the data detection terminal also includes an amplifying circuit, and the voltage transformer and current transformer are respectively connected to the analog-to-digital conversion through the amplifying circuit module, the amplifying circuit includes an amplifier chip, a first resistor, a second resistor, and a third resistor, and the output terminals of the voltage transformer and the current transformer are respectively connected to one end of the first resistor and the second resistor, and the output terminals of the second resistor The other end is connected to the positive pole of the amplifier chip, the negative pole of the amplifier chip is connected in series with the third resistor and grounded to the other end of the first resistor, and the voltage output end of the amplifier chip is connected to the input end of the data processing module.

Compared with the prior art by adopting the above technical scheme, the utility model has the following technical effects:

1. This utility uses the cloud platform to monitor various parameters of the distribution network synchronously in real time, and becomes a power quality monitoring micro-system suitable for distribution network conditions. Real-time, accurate and comprehensive monitoring of distribution network power quality related data can further improve Power quality, strengthen power grid management, provide basic data, optimize power grid structure and power quality;

2. The utility model is also equipped with an alarm system, which can disconnect the power grid urgently and notify the staff when the power grid parameters are abnormal, so that the staff can find and solve the fault at the first time, ensuring the safe and stable operation of the power grid. Some household appliances It will be affected by abnormal parameters of the power grid, shorten the service life, and cause fire and other safety accidents in severe cases. Timely disconnection of the power grid will help extend the service life of electrical appliances and reduce the incidence of fire and other safety accidents.

Description of drawings

Fig. 1 is a block diagram of the utility model;

Fig. 2 is a structural block diagram of the utility model data detection terminal;

Fig. 3 is a structural block diagram of the cloud server terminal of the present invention;

Fig. 4 is a structural block diagram of the remote monitoring terminal of the present invention;

Fig. 5 is a circuit diagram of the amplifying circuit of the data detection terminal of the present invention.

detailed description

Below in conjunction with accompanying drawing, the technical scheme of the utility model is described in further detail:

As shown in Figure 1, a distribution network power quality monitoring device based on a cloud platform includes a data detection terminal, a cloud server terminal and a remote monitoring terminal; the data detection terminal and the remote monitoring terminal are respectively connected to the cloud server terminal. The multiple data detection terminals upload the collected power parameters of the distribution network to the cloud platform for storage in real time; monitoring personnel can query the power quality of the distribution network at any time through the remote monitoring terminal. The utility uses the cloud platform to monitor various parameters of the distribution network synchronously in real time, and becomes a power quality monitoring micro-system suitable for distribution network conditions to monitor data related to power quality of the distribution network in real time, accurately and comprehensively, and can further improve power quality , Strengthen power grid management and provide basic data to optimize power grid structure and power quality.

As shown in Figure 2, the data detection terminal includes a voltage transformer, a current transformer, a data transmission module, an analog-to-digital conversion module, and a data processing module, and the voltage transformer and the current transformer are respectively connected by an analog-to-digital signal converter A data processing module, the data processing module is connected to the data transmission module. Specific collection parameters: the voltage transformer is used to collect voltage parameters, and the current transformer is used to collect current parameters; then processed by the analog-to-digital conversion module and transmitted to the cloud server terminal through the data transmission module.

Among them, the specific models involved in some modules are as follows: the voltage transformer uses a voltage detection module with a chip model of HVD100, the current transformer uses a current detection module with a chip model of KLARI-MOD SC, and the analog-to-digital conversion module uses The chip model is an analog-to-digital converter of AD7794.

As shown in Figure 5, the data detection terminal also includes an amplifying circuit, the voltage transformer and the current transformer are respectively connected to the analog-to-digital conversion module through the amplifying circuit, and the amplifying circuit includes an amplifier chip, a first resistor, a second resistor, the third resistor, the output terminals of the voltage transformer and the current transformer are respectively connected to one end of the first resistor and the second resistor, the other end of the second resistor is connected to the positive pole of the amplifier chip, and the negative pole of the amplifier chip is connected to the third resistor After being connected in series with the other end of the first resistor to ground, the voltage output end of the amplifier chip is connected to the input end of the data processing module.

As shown in FIG. 3 , the cloud server terminal includes a control module and an identification module, a data storage module, a clock module, a communication module and a power management module respectively connected thereto. Wherein, the identification module is used to identify and authenticate visitor information; the data storage module is used to store parameters collected by the data collection terminal in real time, and the clock module is used to record time. Wherein, the chip models of the data processing module and the control module are both STM32, and the chip model of the clock module is DS1302.

As shown in Figure 4, the described remote monitoring terminal includes a DSP module and a touch screen display module and a Web access terminal connected to it respectively, the described remote monitoring terminal also includes an alarm device, and the alarm device includes an emergency power-off device and A power-off alarm device, the emergency power-off device and the power-off alarm device are respectively connected with the DSP module. The touch screen display module is used to display in real time the parameters related to the power quality of the distribution network collected by the sensor network, and the DSP module is used to control the emergency power-off device and the power-off alarm device when the power grid parameters are abnormal: emergency disconnection of the power grid And notify the staff, so that the staff can find and solve the fault at the first time, ensuring the safe and stable operation of the power grid. Some household appliances will be affected by abnormal parameters of the power grid, shorten the service life, and cause fires and other safety accidents in severe cases. Disconnecting from the power grid can help extend the life of electrical appliances and reduce the incidence of safety accidents such as fires.

To sum up: the utility model has reasonable design, low cost, simple operation, flexible and convenient network deployment, the cloud platform has strong self-organizing network capability, and can monitor various parameters of the distribution network synchronously in real time, becoming a suitable distribution network Under certain conditions, the power quality monitoring micro-system can monitor the relevant data of distribution network power quality in real time, accurately and comprehensively, which can further improve power quality, strengthen power grid management, provide basic data, and optimize power grid structure and power quality.

The utility model is also equipped with an alarm system, which can disconnect the power grid urgently and notify the staff when the power grid parameters are abnormal, so that the staff can find and solve the fault at the first time, ensuring the safe and stable operation of the power grid, and some household appliances will be damaged. The impact of abnormal grid parameters will shorten the service life, and in severe cases, it will cause fire and other safety accidents. Disconnecting the power grid in time will help extend the service life of electrical appliances and reduce the incidence of fire and other safety accidents.

The whole system can operate intelligently, without personnel on duty, can monitor the power grid comprehensively and uninterruptedly, and detect faults in time, changing the situation of always being passive in power quality management and improving the service quality of the power grid system.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And these obvious changes or changes derived from the essential spirit of the present utility model still belong to the protection scope of the present utility model.

Claims (9)

1. a kind of distribution network electric energy quality monitoring device based on cloud platform, it is characterised in that：Taken comprising Data Detection terminal, cloud Business device terminal and remote monitoring terminal；The Data Detection terminal and remote monitoring terminal are connected with Cloud Server terminal respectively； The Data Detection terminal includes voltage transformer, current transformer, data transmission module, analog-to-digital conversion module, data processing Module, the voltage transformer, current transformer connect data processing module, the data by modulus signal converter respectively Processing module connects the data transmission module, the Cloud Server terminal connected identification mould comprising control module and respectively Block, data-storage module, clock module, communication module and power management module.

2. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute State remote monitoring terminal and include DSP module and the connected touch-screen display module of difference and web access end.

3. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute Remote monitoring terminal is stated also comprising a warning device, the warning device includes emergency power-off device and power failure alarm device, institute Emergency power-off device and power failure alarm device is stated to be connected with DSP module respectively.

4. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute State the voltage detection module that voltage transformer uses chip model for HVD100.

5. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute State the current detection module that current transformer uses chip model for KLARI-MOD SC.

6. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute State the analog-digital converter that analog-to-digital conversion module uses chip model for AD7794.

7. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute The chip model for stating data processing module and control module is all STM32.

8. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute The chip model for stating clock module is DS1302.

9. a kind of distribution network electric energy quality monitoring device based on cloud platform according to claim 1, it is characterised in that：Institute Data Detection terminal is stated also comprising an amplifying circuit, the voltage transformer, current transformer are connected by amplifying circuit respectively Analog-to-digital conversion module, the amplifying circuit includes amplifier chip, first resistor, second resistance, 3rd resistor, and the voltage is mutual The output end of sensor summation current transformer connects one end of first resistor and second resistance, the other end connection of second resistance respectively The positive pole of amplifier chip, the negative pole of amplifier chip is grounded after being connected with 3rd resistor with the other end of first resistor, amplifies The voltage output end of device chip connects the input of data processing module.