CN212726567U

CN212726567U - Intelligent monitoring equipment for power station

Info

Publication number: CN212726567U
Application number: CN202021441085.4U
Authority: CN
Inventors: 许灵柱; 朱双宝; 李发; 张敏浩
Original assignee: Qingdao New Green Energy Data Technology Co ltd
Current assignee: Qingdao New Green Energy Data Technology Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-03-16
Anticipated expiration: 2030-07-20

Abstract

The utility model relates to a power station monitoring device, which provides a power station intelligent monitoring device, comprising a controller, a collection unit and a communication interface, wherein the controller is connected with the collection unit, and the collection unit receives the electric quantity parameters collected by the communication interface; the controller is used for calculating the electric quantity parameter fed back by the acquisition unit, and the acquisition unit is used for converting the electric quantity parameter into an electric signal calculated by the controller. The problems that the feedback integrity of the electric quantity parameters of the existing power station monitoring equipment is poor and the speed is slow are solved.

Description

Intelligent monitoring equipment for power station

Technical Field

The utility model relates to a power station supervisory equipment particularly, relates to a power station intelligent monitoring equipment.

Background

The safe operation of a power grid is a primary task of a power enterprise, and with the steady development of an intelligent technology, the traditional power station monitoring equipment is in a monitoring blind area in an environment measuring instrument, a battery panel, a junction box, an inverter, an AC/DC cabinet, a transformer and the like; meanwhile, the existing power station monitoring equipment has poor feedback integrity on the electrical quantity parameters and slow speed.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a power station intelligent monitoring equipment to it is poor to the complete degree of feedback of electric volume parameter, and the slow problem of speed to solve present power station monitoring equipment.

In order to achieve the above object, the present invention provides the following techniques:

a power station intelligent monitoring device comprises a controller, a collection unit and a communication interface, wherein the controller is connected with the collection unit, and the collection unit receives electrical quantity parameters collected by the communication interface; the controller is used for calculating the electric quantity parameter fed back by the acquisition unit, and the acquisition unit is used for converting the electric quantity parameter into an electric signal calculated by the controller.

The utility model discloses a theory of operation: firstly, the communication interface receives the parameters of the electric quantity (voltage, frequency, power factor, active power, reactive power and the like) and the parameters of the non-electric quantity (temperature, humidity, oil temperature, ambient air pressure and the like) of the intelligent monitoring equipment of the whole power station. Then, the communication interface transmits the information to the acquisition unit, and the acquisition unit converts the related parameter data into an electric signal which can be identified and measured by the controller. Finally, each parameter value calculated in real time by the controller is compared with a preset monitoring range value, and if the parameter value exceeds the range value, an alarm is given.

Furthermore, the communication interface comprises a current-voltage interface, an Ethernet interface and a wireless AP interface, wherein the current-voltage interface is used for receiving/transmitting a communication interface of current and voltage, the Ethernet interface is used for a network data transmission port of the intelligent monitoring equipment of the power station, and the wireless AP interface is used for a transmission port of wireless network data.

Furthermore, the acquisition unit acquires an electrical quantity parameter and a non-electrical quantity parameter, wherein the electrical quantity parameter comprises an alternating current quantity parameter and a direct current quantity parameter, and the non-electrical quantity parameter comprises an environmental parameter in an inverter room or a box transformer substation.

Further, the communication interface further comprises an RS485 interface and an optical port, the RS485 interface is a master station access point and comprises an access inverter, an intelligent header box and a multifunctional data display instrument, and a double optical port is arranged in the whole intelligent monitoring equipment of the power station to form a self-healing optical fiber ring network.

Further, the device also comprises a display which is connected with the controller and is used for displaying the electrical quantity parameter or the non-electrical quantity parameter which exceeds the preset range.

Further, a power supply is also included.

The alarm device further comprises an alarm unit which is connected with the controller and used for alarming the electric quantity parameter or the non-electric quantity parameter exceeding the preset range.

Further, the overload protection device also comprises an overload protection unit which is connected with the controller and used for protecting the multipath electrical quantity and the non-electrical quantity which exceed the preset range.

Further, the device also comprises a recording unit which is connected with the controller and is used for recording the waveforms before and after the fault point and simultaneously recording the occurrence time of the event and the type of the event.

Compared with the prior art, the utility model discloses can bring following technological effect:

1. the electric quantity parameters and the non-electric quantity parameters of the whole power station are received in real time through the communication interface, and then the parameter values are measured and monitored in real time through the controller, so that the manual workload is reduced;

2. the method comprises the steps that an alarm unit is used for alarming the electric quantity parameter or the non-electric quantity parameter exceeding a preset range, so that the parameter values of the whole power station can be monitored in real time;

3. the overload protection unit provides a multi-path non-electrical quantity protection function and a plurality of electrical quantity protection functions;

4. and recording the waveforms before and after the fault point by a recording unit, and simultaneously recording the occurrence time of the event and the type of the event.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and further features, objects, and advantages of the invention will become apparent. The drawings of the illustrative embodiments and their description are provided to explain the present invention and do not constitute an undue limitation on the invention. In the drawings:

fig. 1 is the utility model relates to a power station intelligent monitoring equipment's structure flow chart.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Examples

The communication interface comprises a current-voltage interface, an Ethernet interface and a wireless AP interface, wherein the current-voltage interface is used for receiving/transmitting a communication interface of current and voltage, the Ethernet interface is used for a network data transmission port of the intelligent monitoring equipment of the power station, and the wireless AP interface is used for a transmission port of wireless network data.

The acquisition unit acquires electrical quantity parameters and non-electrical quantity parameters, wherein the electrical quantity parameters comprise alternating current quantity parameters and direct current quantity parameters, and the non-electrical quantity parameters comprise environmental parameters in an inverter room or a box transformer substation. And the non-electrical parameters comprise an inverter chamber smoke sensor, a box transformer low-voltage circuit breaker on-off state signal, a box transformer high-voltage load switch on-off state signal, a box transformer high-voltage fuse fusing signal and the like.

The communication interface further comprises an RS485 interface and an optical port, the RS485 interface is a master station access point and comprises an access inverter, an intelligent header box and a multifunctional data display instrument, and a double optical port is arranged in the whole intelligent monitoring equipment of the power station to form a self-healing optical fiber ring network.

The display is connected with the controller and used for displaying the electric quantity parameter or the non-electric quantity parameter exceeding the preset range.

Also includes a power supply. Power supply voltage of intelligent monitoring equipment of power station: AC 220V ± 15%, frequency: 50 Hz-3 Hz- +2Hz, and the operating environment is as follows: -40 ℃ to +70 ℃, storage ambient temperature: minus 45 ℃ to plus 85 ℃.

The alarm device also comprises an alarm unit which is connected with the controller and used for alarming the electric quantity parameter or the non-electric quantity parameter which exceeds the preset range.

The overload protection unit is connected with the controller and used for protecting the multipath electrical quantity and the non-electrical quantity which exceed the preset range. The intelligent monitoring equipment of the power station can provide the protection function of multi-channel non-electrical quantity, such as: light gas, heavy gas, high temperature of the transformer, ultra high temperature of the transformer, low oil level of the transformer, action of a pressure relief valve, and the like. Meanwhile, various electrical quantity protection functions can be provided, such as: overcurrent I section, overcurrent II section, overcurrent III section, ground protection, overvoltage protection, undervoltage protection and the like. And analyzing according to the acquired signals, and timely disconnecting the corresponding switch if the voltage of the power grid is abnormal or the inverter side is abnormal.

The device also comprises a recording unit which is connected with the controller and is used for recording the waveforms before and after the fault point and simultaneously recording the occurrence time of the event and the type of the event. The system has complete event report processing function and operation recording function, and can at least store the latest 25 SOE displacement records and the latest 25 user operation records.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The intelligent monitoring equipment for the power station is characterized by comprising a controller, a collecting unit and a communication interface, wherein the controller is connected with the collecting unit, and the collecting unit receives electric quantity parameters collected by the communication interface; the controller is used for calculating the electric quantity parameter fed back by the acquisition unit, and the acquisition unit is used for converting the electric quantity parameter into an electric signal calculated by the controller.

2. The intelligent monitoring device for power stations of claim 1, wherein the communication interface comprises a current-voltage interface, an ethernet interface and a wireless AP interface, the current-voltage interface is used for receiving/transmitting current and voltage, the ethernet interface is used for a network data transmission port of the intelligent monitoring device for power stations, and the wireless AP interface is used for a wireless network data transmission port.

3. A plant intelligent monitoring device as claimed in claim 1 or 2, characterized in that the collecting unit collects parameters of electrical quantities including parameters of alternating current and direct current quantities and parameters of non-electrical quantities including environmental parameters in the inverter room or box transformer.

4. The intelligent monitoring device for power stations of claim 3, wherein the communication interface further comprises an RS485 interface and an optical port, the RS485 interface is a master station access point and comprises an access inverter, an intelligent combiner box and a multifunctional data display instrument, and a double optical port is arranged in the whole intelligent monitoring device of the power station to form a self-healing optical fiber ring network.

5. The intelligent monitoring device for power stations of claim 1 or 4, further comprising a display connected to the controller for displaying the parameter of the electrical quantity or the parameter of the non-electrical quantity exceeding a preset range.

6. The intelligent monitoring device for power stations of claim 5, further comprising a power source.

7. The intelligent monitoring device for power stations of claim 1 or 6, further comprising an alarm unit connected to the controller for alarming the parameter of the electrical quantity or the parameter of the non-electrical quantity exceeding a preset range.

8. The intelligent monitoring device for power stations of claim 1, further comprising an overload protection unit connected to the controller for protecting the plurality of electrical and non-electrical quantities over a predetermined range.

9. The intelligent monitoring device for power station as claimed in claim 4, 6 or 8, further comprising a recording unit connected with the controller for recording the waveforms before and after the fault point, and recording the time of the event and the type of the event.