CN110165643A - A kind of interconnection Microcomputer Protection method and system - Google Patents
A kind of interconnection Microcomputer Protection method and system Download PDFInfo
- Publication number
- CN110165643A CN110165643A CN201910562395.7A CN201910562395A CN110165643A CN 110165643 A CN110165643 A CN 110165643A CN 201910562395 A CN201910562395 A CN 201910562395A CN 110165643 A CN110165643 A CN 110165643A
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- China
- Prior art keywords
- protecting device
- microcomputer protecting
- microcomputer
- assistant scm
- controller
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/263—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of measured values
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- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention provides a kind of interconnection Microcomputer Protection method and system, comprising: the first assistant SCM of the first microcomputer protecting device determines that the working condition of the first controller is abnormal；Send the request of the first microcomputer protecting device of adapter tube to the second microcomputer protecting device by CAN bus from the first assistant SCM；Receive the second microcomputer protecting device return response message and according to the response message determine the second microcomputer protecting device whether the first microcomputer protecting device of adapter tube.The problem of present invention can have found immediately after the failure of the controller of some microcomputer protecting device and be taken over by other microcomputer protecting devices, avoid microcomputer protecting device controller failure that entire microcomputer protecting device is caused to fail, cause safety accident.
Description
Technical field
The present invention relates to supplying electricity and power distribution technical fields, and in particular to a kind of interconnection Microcomputer Protection method and system.
Background technique
Microcomputer Protection is the relay protection constituted with microcomputer, is the developing direction of relay protection of power system, it
It is highly selective with high reliability, it is highly sensitive.The system is widely used in electric power, petrochemical industry, mine smelting, railway and the people
With building etc..
General large-scale power plant, substation etc. of matching is required to that multiple microcomputer protecting devices are arranged.Microcomputer protecting device is by controlling
Device processed controls relay according to the data that data acquisition unit (sensor) generates, to realize the protection to system power voltage
And observing and controlling.When the controller (control chip) of microcomputer protecting device breaks down, if maintenance personnel has found not in time, pole has can
It can cause large-scale safety accident.Therefore the controller failure of discovery in time and processing microcomputer protecting device is to distribution, power supply production
It is particularly important.
Summary of the invention
For the above-mentioned deficiency of the prior art, the present invention provides a kind of interconnection Microcomputer Protection method and system, on solving
State technical problem.
In a first aspect, the present invention provides a kind of interconnection Microcomputer Protection method, multiple microcomputer protecting devices are mutual by CAN bus
Connection, wherein microcomputer protecting device includes controller, data acquisition unit, high-intensitive outlet intermediate relay and assistant SCM,
Include:
First assistant SCM of the first microcomputer protecting device determines that the working condition of the first controller is abnormal；
The first microcomputer protecting device of adapter tube is sent to the second microcomputer protecting device by CAN bus from the first assistant SCM
Request；
It receives the response message of the second microcomputer protecting device return and the second Microcomputer Protection is determined according to the response message
Device whether the first microcomputer protecting device of adapter tube.
Further, described that adapter tube the is sent to the second microcomputer protecting device by CAN bus from the first assistant SCM
The request of first data acquisition unit of one microcomputer protecting device, comprising:
After determining the working condition exception of the first controller, the first assistant SCM receives the voltage of data acquisition unit
Current data；
The voltage and current data are sent to the second Microcomputer Protection dress by CAN bus by first assistant SCM
It sets.
Further, it is described receive the second microcomputer protecting device return response message and according to the response message determine
Whether the second microcomputer protecting device after the first microcomputer protecting device of adapter tube, the method also includes:
After determining second the first microcomputer protecting device of microcomputer protecting device adapter tube, the first microcomputer protecting device receives the
The control command that two microcomputer protecting devices return, the control command are filled by the second microcomputer protecting device according to the first Microcomputer Protection
The voltage and current data set generate；
First assistant SCM goes out the first high intensity that the control command is sent to the first microcomputer protecting device
Mouth intermediate relay simultaneously executes the control command by the described first high-intensitive outlet intermediate relay.
Further, the method also includes:
After determining the first controller working condition exception, first assistant SCM to monitor terminal send mark by
The exception reporting of first microcomputer protecting device, first assistant SCM and the monitor terminal establish wireless communication connection.
Second aspect, the present invention provide a kind of interconnection microcomputer protection system, comprising:
Abnormal determination unit is configured to determine the first controller by the first assistant SCM of the first microcomputer protecting device
Working condition it is abnormal；
Request transmitting unit is configured to be sent out by CAN bus to the second microcomputer protecting device from the first assistant SCM
Send the request of the first microcomputer protecting device of adapter tube；
Adapter tube determination unit is configured to receive the response message of the second microcomputer protecting device return and according to the response
Information determine the second microcomputer protecting device whether the first microcomputer protecting device of adapter tube.
Further, the request transmitting unit includes:
Data reception module is configured to after determining the working condition exception of the first controller, the first assistant SCM
Receive the voltage and current data of data acquisition unit；
Data transmission blocks are configured to first assistant SCM and pass through CAN bus for the voltage and current data
It is sent to the second microcomputer protecting device.
Further, the system also includes:
Order receiver module is configured to after determining second the first microcomputer protecting device of microcomputer protecting device adapter tube,
First microcomputer protecting device receives the control command that the second microcomputer protecting device returns, and the control command is by the second Microcomputer Protection
Device is generated according to the voltage and current data of the first microcomputer protecting device；
Order issues module, is configured to first assistant SCM for the control command and is sent to the first microcomputer guarantor
The high-intensitive outlet intermediate relay of the first of protection unit simultaneously executes the control by the described first high-intensitive outlet intermediate relay
Order.
Further, the system also includes:
Abnormal sending module is configured to after determining the first controller working condition exception, the first auxiliary monolithic
Machine sends mark by the exception reporting of the first microcomputer protecting device, first assistant SCM and the monitoring to monitor terminal
Terminal establishes wireless communication connection.
The beneficial effects of the present invention are,
Interconnection Microcomputer Protection method and system provided by the invention, by setting assistant SCM and by multiple Microcomputer Protections
Device is interconnected by CAN bus, after the controller of a microcomputer protecting device breaks down, the monolithic of the microcomputer protecting device
Machine receives the current and voltage data of data acquisition unit immediately and is sent to these data and takeover request separately by CAN bus
One microcomputer protecting device, after another microcomputer protecting device responds takeover request, current and voltage data generates corresponding based on the received
Control command and control command is returned to the assistant SCM of failure microcomputer protecting device, by assistant SCM by control command
It is issued to high-intensitive outlet intermediate relay and control command is executed by high intensity outlet intermediate relay.The present invention can be at some
The controller of microcomputer protecting device finds immediately after breaking down and is taken over by other microcomputer protecting devices, and Microcomputer Protection is avoided to fill
Set the problem of controller failure causes entire microcomputer protecting device to fail, causes safety accident.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic flow chart of the method for one embodiment of the invention.
Fig. 2 is the architecture diagram of the microcomputer protecting device of the method for one embodiment of the invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The Key Term occurred in the present invention is explained below.
Fig. 1 is the schematic flow chart of the method for one embodiment of the invention.Wherein, Fig. 1 executing subject can be one kind
Interconnect microcomputer protection system.
Specifically, the interconnection Microcomputer Protection method includes:
First in the same area, need to interconnect multiple microcomputer protecting devices by CAN bus, wherein microcomputer protecting device
As shown in Fig. 2, including controller, data acquisition unit, high-intensitive outlet intermediate relay and assistant SCM.In the present embodiment
By taking three microcomputer protecting devices are interconnected by CAN bus as an example, method provided by the invention is illustrated.
Wherein the first microcomputer protecting device is including in the first controller, the first data acquisition unit, the first high-intensitive outlet
Between relay and the first assistant SCM.Second microcomputer protecting device includes second controller, the second data acquisition unit, second
High intensity outlet intermediate relay and the second assistant SCM.Third microcomputer protecting device includes third controller, third data
Acquisition unit, third high intensity outlet intermediate relay and third assistant SCM.
It is illustrated by taking the failure of the first microcomputer protecting device as an example.The first control of first assistant SCM moment monitoring
The working condition of device, monitoring method can lose feeding-dog signal out using the first controller of monitoring, if monitoring is less than feeding-dog signal
Then determine that the first controller working condition is abnormal；Or the communication connection of constantly detection the first assistant SCM and the first controller
State determines the first controller exception if the first assistant SCM can not identify the first controller.First assistant SCM is true
After fixed first assistant SCM working condition exception, by abnormal prompt information, module is sent to monitor terminal by wireless communication,
Find that failure is handled in time in time convenient for operation maintenance personnel.Meanwhile first assistant SCM receive the first data acquisition unit electricity
Voltage data is flowed, and current and voltage data and takeover request are sent to the second assistant SCM, the second auxiliary by CAN interface
Single-chip microcontroller determines whether second controller working condition normal, if second controller normally if return agree to adapter tube response letter
Breath, while the current and voltage data of the first microcomputer protecting device is uploaded to second controller, second controller is according to electric current electricity
It presses data to generate the control command to the first high-intensitive outlet intermediate relay, and control command is sent to by CAN bus
First assistant SCM is forwarded to the first high-intensitive outlet intermediate relay by the first assistant SCM, is gone out by the first high intensity
Mouth intermediate relay executes control command.In this way in the case where the failure of the first controller, the first microcomputer protecting device is remained to
It works normally.If second controller can not adapter tube the first microcomputer protecting device, the second assistant SCM returns and can not take over
Current and voltage data and takeover request are sent to third microcomputer protecting device again by response message, the first assistant SCM.
The present embodiment also provides a kind of interconnection microcomputer protection system, comprising:
Abnormal determination unit is configured to determine the first controller by the first assistant SCM of the first microcomputer protecting device
Working condition it is abnormal；
Request transmitting unit is configured to be sent out by CAN bus to the second microcomputer protecting device from the first assistant SCM
Send the request of the first microcomputer protecting device of adapter tube；
Adapter tube determination unit is configured to receive the response message of the second microcomputer protecting device return and according to the response
Information determine the second microcomputer protecting device whether the first microcomputer protecting device of adapter tube.
Optionally, as one embodiment of the invention, the request transmitting unit includes:
Data reception module is configured to after determining the working condition exception of the first controller, the first assistant SCM
Receive the voltage and current data of data acquisition unit；
Data transmission blocks are configured to first assistant SCM and pass through CAN bus for the voltage and current data
It is sent to the second microcomputer protecting device.
Optionally, as one embodiment of the invention, the system also includes:
Order receiver module is configured to after determining second the first microcomputer protecting device of microcomputer protecting device adapter tube,
First microcomputer protecting device receives the control command that the second microcomputer protecting device returns, and the control command is by the second Microcomputer Protection
Device is generated according to the voltage and current data of the first microcomputer protecting device；
Order issues module, is configured to first assistant SCM for the control command and is sent to the first microcomputer guarantor
The high-intensitive outlet intermediate relay of the first of protection unit simultaneously executes the control by the described first high-intensitive outlet intermediate relay
Order.
Optionally, as one embodiment of the invention, the system also includes:
Abnormal sending module is configured to after determining the first controller working condition exception, the first auxiliary monolithic
Machine sends mark by the exception reporting of the first microcomputer protecting device, first assistant SCM and the monitoring to monitor terminal
Terminal establishes wireless communication connection.
In several embodiments provided by the present invention, it should be understood that disclosed system, system and method, it can be with
It realizes by another way.For example, system embodiment described above is only schematical, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of system or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
Although by reference to attached drawing and combining the mode of preferred embodiment to the present invention have been described in detail, the present invention
It is not limited to this.Without departing from the spirit and substance of the premise in the present invention, those of ordinary skill in the art can be to the present invention
Embodiment carry out various equivalent modifications or substitutions, and these modifications or substitutions all should in covering scope of the invention/appoint
What those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, answer
It is included within the scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. a kind of interconnection Microcomputer Protection method, which is characterized in that multiple microcomputer protecting devices are interconnected by CAN bus, wherein micro-
Machine protective device includes controller, data acquisition unit, high-intensitive outlet intermediate relay and assistant SCM, the method packet
It includes:
First assistant SCM of the first microcomputer protecting device determines that the working condition of the first controller is abnormal；
Asking for the first microcomputer protecting device of adapter tube is sent to the second microcomputer protecting device by CAN bus from the first assistant SCM
It asks；
It receives the response message of the second microcomputer protecting device return and the second microcomputer protecting device is determined according to the response message
Whether the first microcomputer protecting device of adapter tube.
2. the method according to claim 1, wherein it is described from the first assistant SCM by CAN bus to the
Two microcomputer protecting devices send the request of the first data acquisition unit of the first microcomputer protecting device of adapter tube, comprising:
After determining the working condition exception of the first controller, the first assistant SCM receives the voltage and current of data acquisition unit
Data；
The voltage and current data are sent to the second microcomputer protecting device by CAN bus by first assistant SCM.
3. the method according to claim 1, wherein the response letter for receiving the second microcomputer protecting device and returning
It ceases and the second microcomputer protecting device whether after the first microcomputer protecting device of adapter tube, the method is determined according to the response message
Further include:
After determining second the first microcomputer protecting device of microcomputer protecting device adapter tube, it is micro- that the first microcomputer protecting device receives second
The control command that machine protective device returns, the control command is by the second microcomputer protecting device according to the first microcomputer protecting device
Voltage and current data generate；
The control command is sent in the first high-intensitive outlet of the first microcomputer protecting device by first assistant SCM
Between relay and the control command is executed by the described first high-intensitive outlet intermediate relay.
4. the method according to claim 1, wherein the method also includes:
After determining the first controller working condition exception, first assistant SCM sends mark by first to monitor terminal
The exception reporting of microcomputer protecting device, first assistant SCM and the monitor terminal establish wireless communication connection.
5. a kind of interconnection microcomputer protection system, which is characterized in that the system comprises:
Abnormal determination unit is configured to determine the work of the first controller by the first assistant SCM of the first microcomputer protecting device
Make abnormal state；
Request transmitting unit is configured to be connect by CAN bus to the transmission of the second microcomputer protecting device from the first assistant SCM
The request of the first microcomputer protecting device of pipe；
Adapter tube determination unit is configured to receive the response message of the second microcomputer protecting device return and according to the response message
Determine the second microcomputer protecting device whether the first microcomputer protecting device of adapter tube.
6. system according to claim 5, which is characterized in that the request transmitting unit includes:
Data reception module is configured to after determining the working condition exception of the first controller, and the first assistant SCM receives
The voltage and current data of data acquisition unit；
Data transmission blocks are configured to first assistant SCM and are sent the voltage and current data by CAN bus
To the second microcomputer protecting device.
7. system according to claim 5, which is characterized in that the system also includes:
Order receiver module is configured to after determining second the first microcomputer protecting device of microcomputer protecting device adapter tube, first
Microcomputer protecting device receives the control command that the second microcomputer protecting device returns, and the control command is by the second microcomputer protecting device
It is generated according to the voltage and current data of the first microcomputer protecting device；
Order issues module, is configured to first assistant SCM for the control command and is sent to the first Microcomputer Protection dress
The high-intensitive outlet intermediate relay of first set simultaneously executes the control command by the described first high-intensitive outlet intermediate relay.
8. system according to claim 5, which is characterized in that the system also includes:
Abnormal sending module is configured to after determining the first controller working condition exception, first assistant SCM to
Monitor terminal sends mark by the exception reporting of the first microcomputer protecting device, first assistant SCM and the monitor terminal
Establish wireless communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562395.7A CN110165643B (en) | 2019-06-26 | 2019-06-26 | Interconnected microcomputer protection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910562395.7A CN110165643B (en) | 2019-06-26 | 2019-06-26 | Interconnected microcomputer protection method and system |
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| Publication Number | Publication Date |
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| CN110165643A true CN110165643A (en) | 2019-08-23 |
| CN110165643B CN110165643B (en) | 2022-01-21 |
Family
ID=67636736
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910562395.7A Active CN110165643B (en) | 2019-06-26 | 2019-06-26 | Interconnected microcomputer protection method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110556797A (en) * | 2019-08-15 | 2019-12-10 | 国网山东省电力公司诸城市供电公司 | Interconnected microcomputer protection method and system |
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| CN110165643B (en) | 2022-01-21 |
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