CN111682648B - Method and system for automatically stopping AVC when personnel enter high-voltage chamber - Google Patents
Method and system for automatically stopping AVC when personnel enter high-voltage chamber Download PDFInfo
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- CN111682648B CN111682648B CN202010631583.3A CN202010631583A CN111682648B CN 111682648 B CN111682648 B CN 111682648B CN 202010631583 A CN202010631583 A CN 202010631583A CN 111682648 B CN111682648 B CN 111682648B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/18—Systems supporting electrical power generation, transmission or distribution using switches, relays or circuit breakers, e.g. intelligent electronic devices [IED]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
Abstract
The invention discloses a method and a system for automatically stopping AVC when a person enters a high-voltage chamber, wherein the method comprises the following steps: the normally open infrared induction switch is positioned in the high-pressure chamber and used for generating infrared induction switching value according to whether personnel enter or not, and the switching value transmission link is used for transmitting the infrared induction switching value to the master station device; the master station device is used for outputting an AVC input state quantity or an AVC exit state quantity to the AVC switch cabinet according to the infrared induction switching quantity; the AVC switch cabinet is used for performing a switching action or a quitting action according to the switching-in or quitting state quantity; when the infrared inductive switch does not detect the person, the on-off switching value is output and is represented by 0, and when the infrared inductive switch detects the person, the on-off switching value is output and is represented by 1; when the master device obtains the switching value of the on state, the input AVC state quantity is output, and when the master device obtains the switching value of the off state, the output exits the AVC state quantity.
Description
Technical Field
The invention relates to the field of AVC switching control, and mainly relates to a method and a system for automatically stopping AVC when a person enters a high-voltage chamber.
Background
An AVC (automatic Voltage control) system is used for carrying out online optimization calculation by monitoring the reactive power/Voltage condition of the whole network in real time under the normal operation condition, and meeting the optimized reactive power flow operation under the power grid safety constraint condition by adjusting and controlling the output of a reactive power supply of a power grid, the tap gear of an on-load tap changing transformer and the on-off state of compensation equipment so as to achieve the purposes of high Voltage and minimum network loss.
According to the requirements: when entering a distribution room and a capacitor room, the AVC switch cabinet system of the station needs to be temporarily quitted, remote and local operation (including hot standby) of the switch cabinet circuit breaker is forbidden, the AVC function is recovered when a person leaves, and recording is needed when the operation and maintenance person applies to switch on and off the AVC function. If the remote operation needs to be carried out for special reasons, the regulation and control department should inform field personnel to evacuate in time and confirm that no person is operable behind the power distribution room. "
The existing AVC switching control is realized by adopting a personnel scheduling mode, namely when field station personnel need to enter a high-voltage operation environment, the field station personnel need to communicate with scheduling personnel of a main station by telephone, the scheduling personnel operate an AVC control system to send out a quitting state quantity, and then an AVC switch cabinet executes a quitting action; after the operation is finished and the station personnel leave, the dispatching personnel needing to communicate with the master station through a telephone are operated by the dispatching personnel to send the input state quantity, and then the AVC switch cabinet executes the input action.
However, with the expansion of the power grid scale, the number of substations is increasing, and the workload of substation workers entering a high-voltage chamber is huge. In order to meet the challenges of rapidly increasing the number of AVC switching operations but limiting the number of dispatching monitoring personnel, the existing technical means of manual switching locking cannot meet the requirements of real-time and intelligentization of field operation management. Therefore, the need for improving the function of automatically stopping the AVC system when people enter the high-pressure chamber is urgent to develop the locking method for automatically stopping the AVC system when people enter the high-pressure chamber.
Disclosure of Invention
The invention aims to provide a method and a system for automatically stopping AVC when a person enters a high-voltage chamber.
The invention is realized by the following technical scheme:
a method for automatically disabling AVC when a person enters a high pressure chamber, comprising the steps of:
s1, arranging a normally open infrared inductive switch in the high-voltage chamber for detecting whether the person enters,
s2, transmitting the infrared induction switch quantity output by the infrared induction switch to the master station device through the switch quantity transmission link,
s3, correlating the infrared induction switching value received by the master station device into an SCADA protection signal, sending the infrared induction switching value into AVC protection logic along with the SCADA protection signal, and setting the triggering preference level of the infrared induction switching value to be the highest;
s4, taking the output of the AVC protection logic as the output of the AVC input state quantity or the AVC exit state quantity of the master station device, and downloading the output to an AVC switch cabinet through a transmission link;
the control process of the above S1-S4 is as follows:
when the personnel do not enter the high-voltage chamber, the infrared sensing switching value is in an on state, the AVC protection logic outputs an input AVC state value to the AVC switch cabinet, and the AVC switch cabinet is in an input state;
when personnel enter the high-voltage chamber, the infrared sensing switching value is in a closed state, the AVC protection logic outputs the AVC exit state value to the AVC switch cabinet, and the AVC switch cabinet is in an exit state.
On the basis of the method, preferably, the switching value transmission link comprises a measurement and control screen and a telemechanical screen which are positioned in a station interval, the infrared sensing switching value is connected to a reserved switching value empty node of the measurement and control screen, and the telemechanical screen uploads the infrared sensing switching value to a master station device positioned in the master station interval in a protocol forwarding mode.
On the basis of the method, preferably, the AVC protection logic includes a logic unit or logic, the SCADA protection signal is sent to the logic unit, an output of the logic unit and the infrared sensing switching value are sent to the or logic, or an output of the logic is an output of the master station apparatus for entering the AVC state quantity or exiting the AVC state quantity. Here, since the logic judges that there are multiple stages, the infrared sensing switching amount is fed to the or logic to ensure that it is at the highest priority. That is, the exit from the AVC state quantity can be triggered as long as the switching quantity is sensed by the infrared ray.
On the basis of the above method, preferably, the logic unit is any one of or logic, and logic, not logic, and any combination thereof.
On the basis of the method, preferably, the AVC protection logic is an or logic, the SCADA protection signal and the infrared sensing switching value are sent to the or logic, or the output of the or logic is the output of the master station apparatus for entering the AVC state quantity or exiting the AVC state quantity. Here, since the AVC protection logic has only the or logic, and thus has only the level 1 logic in the whole logic, the ir sensing switching value is fed into the or logic together with the SCADA protection signal, and it is also ensured that the ir sensing switching value is at the highest priority.
A system for automatically disabling AVC when a person enters a high pressure room, comprising:
a normally open infrared inductive switch located in the high pressure chamber for generating infrared inductive switching value according to whether the person enters,
a switching value transmission link for transmitting the infrared sensing switching value to the master station device;
the master station device is used for outputting an AVC input state quantity or an AVC exit state quantity to the AVC switch cabinet according to the infrared induction switching quantity;
the AVC switch cabinet is used for performing a switching action or a quitting action according to the switching-in or quitting state quantity;
when the infrared inductive switch does not detect the person, the switch value of the on state is output and is represented by 0,
when the infrared inductive switch detects a person, outputting a switching value of a closed state, which is represented by 1;
when the master station device obtains the switching value of the on state, the input AVC state value is output,
when the master station device obtains the switching value of the closed state, the master station device outputs the AVC exit state quantity.
On the basis of the system, preferably, the infrared sensing switching value is set and associated in the master station device as an SCADA protection signal, an AVC protection logic is set in the master station device, the AVC protection logic includes a logic unit or an or logic, the SCADA protection signal is sent to the logic unit, the output of the logic unit and the infrared sensing switching value are sent to the or logic, or the output of the logic is the output of the master station device for inputting the AVC state quantity or exiting the AVC state quantity.
On the basis of the above system, preferably, the logic unit is any one of or logic, sum logic, non-logic, and any combination thereof.
On the basis of the above system, preferably, the master station device associates the infrared sensing switching value setting as an SCADA protection signal, and the master station device has an AVC protection logic therein, where the AVC protection logic is: and the SCADA protection signal and the infrared induction switching value are sent to an OR logic, or the output of the OR logic is the output of the AVC input state quantity or the AVC exit state quantity of the master station device.
On the basis of the system, preferably, the switching value transmission link comprises a measurement and control screen and a telecontrol screen which are positioned in the station interval, the infrared sensing switching value is connected to a reserved switching value empty node of the measurement and control screen, and the telecontrol screen uploads the infrared sensing switching value to the master station device positioned in the master station interval in a protocol forwarding mode.
The design principle of the invention is as follows:
1. an infrared induction switch is arranged in a high-voltage chamber, and whether a person exists is represented by using the switching value of the infrared induction switch;
2. the infrared induction switch is selected as an electronic element for representing whether a person exists, and analog quantity is not selected for representing, so that the switching value can be transmitted by means of the existing switching value transmission link, and extra circuit layout is not required;
3. the control logic relation is not set independently, the infrared induction switching value is set and associated as an SCADA protection signal, and the infrared induction switching value is sent to AVC protection logic along with the SCADA protection signal; and the optimal grade of the configured infrared sensing switching value is utilized, so that the situation that the AVC is quitted or put into operation is guaranteed to be triggered through the infrared sensing switching value.
Therefore, the invention can be regarded as that the automatic triggering AVC switching control is realized by utilizing the switching value, transmission and logic control organically.
Compared with the prior art, the invention has the following advantages and beneficial effects:
when a worker enters a high-voltage chamber, an infrared induction switch of the high-voltage chamber is started, an internal normally open contact is closed, the contact is accessed to a transformer substation measurement and control screen, and a plant station end and a master station end are configured to be accessed to a telemechanical remote signaling point; and the control of the AVC of the transformer substation is automatically locked by setting the association as an SCADA protection signal action, and meanwhile, an alarm signal is sent.
The beneficial effects are that: the output that the staff got into hyperbaric chamber contact position has been realized, and the cooperation dispatch automation can be realized the someone information in hyperbaric chamber and has been sent on, has solved the problem of traditional manual operation shutting. The metal charged part can not be touched, so that the operation of workers is safer; the design is centralized and compact, the material is saved, and the price is low; the upper conveying and checking positions are simple and quick, the working time is saved, and the working efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a system block diagram of the present invention.
FIG. 2 is a diagram of AVC protection logic of the present invention.
FIG. 3 is a diagram of AVC protection logic of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in fig. 1, a method for automatically disabling AVC when a person enters a high pressure chamber, comprising the steps of:
s1, arranging a normally open infrared inductive switch in the high-voltage chamber for detecting whether the person enters,
s2, transmitting the infrared induction switch quantity output by the infrared induction switch to the master station device through the switch quantity transmission link,
s3, correlating the infrared induction switching value setting received by the master station device to be an SCADA protection signal, sending the infrared induction switching value and the SCADA protection signal to AVC protection logic, and setting the triggering preference level of the infrared induction switching value to be the highest (as shown in figure 2);
s4, taking the output of the AVC protection logic as the output of the AVC input state quantity or the AVC exit state quantity of the master station device, and downloading the output to an AVC switch cabinet through a transmission link;
the control process of the above S1-S4 is as follows:
when the personnel do not enter the high-voltage chamber, the infrared sensing switching value is in an on state, the AVC protection logic outputs an input AVC state value to the AVC switch cabinet, and the AVC switch cabinet is in an input state;
when personnel enter the high-voltage chamber, the infrared sensing switching value is in a closed state, the AVC protection logic outputs the AVC exit state value to the AVC switch cabinet, and the AVC switch cabinet is in an exit state.
On the basis of the method, preferably, the switching value transmission link comprises a measurement and control screen and a telemechanical screen which are positioned in a station interval, the infrared sensing switching value is connected to a reserved switching value empty node of the measurement and control screen, and the telemechanical screen uploads the infrared sensing switching value to a master station device positioned in the master station interval in a protocol forwarding mode.
As shown in fig. 2, based on the above method, preferably, the AVC protection logic includes a logic unit or logic, the SCADA protection signal is sent to the logic unit, an output of the logic unit and the infrared sensing switching value are sent to the or logic, or an output of the logic is an output of the master device that enters the AVC state quantity or exits the AVC state quantity. Here, since the logic judges that there are multiple stages, the infrared sensing switching amount is fed to the or logic to ensure that it is at the highest priority. That is, the exit from the AVC state quantity can be triggered as long as the switching quantity is sensed by the infrared ray.
On the basis of the above method, preferably, the logic unit is any one of or logic, and logic, not logic, and any combination thereof.
As shown in fig. 3, based on the above method, preferably, the AVC protection logic is an or logic, and the SCADA protection signal and the ir-sensitive switching value are sent to the or logic, or an output of the or logic is an output of the master device that enters or exits the AVC state amount. Here, since the AVC protection logic has only the or logic, and thus has only the level 1 logic in the whole logic, the ir sensing switching value is fed into the or logic together with the SCADA protection signal, and it is also ensured that the ir sensing switching value is at the highest priority.
Example 2
As shown in fig. 1, a system for automatically disabling AVC when a person enters a high pressure room, comprising:
a normally open infrared inductive switch located in the high pressure chamber for generating infrared inductive switching value according to whether the person enters,
a switching value transmission link for transmitting the infrared sensing switching value to the master station device;
the master station device is used for outputting an AVC input state quantity or an AVC exit state quantity to the AVC switch cabinet according to the infrared induction switching quantity;
the AVC switch cabinet is used for performing a switching action or a quitting action according to the switching-in or quitting state quantity;
when the infrared inductive switch does not detect the person, the switch value of the on state is output and is represented by 0,
when the infrared inductive switch detects a person, outputting a switching value of a closed state, which is represented by 1;
when the master station device obtains the switching value of the on state, the input AVC state value is output,
when the master station device obtains the switching value of the closed state, the master station device outputs the AVC exit state quantity.
As shown in fig. 2, on the basis of the above system, it is preferable that the infrared sensing switching value setting is associated with an SCADA protection signal in the master station apparatus, and an AVC protection logic is provided in the master station apparatus, the AVC protection logic includes a logic unit or an or logic, the SCADA protection signal is sent to the logic unit, an output of the logic unit and the infrared sensing switching value are sent to the or logic, or an output of the logic is an output of an AVC input state quantity or an AVC exit state quantity of the master station apparatus.
On the basis of the above system, preferably, the logic unit is any one of or logic, sum logic, non-logic, and any combination thereof.
As shown in fig. 3, in addition to the above system, it is preferable that the master device associates the infrared sensing switching value setting as an SCADA protection signal, and the master device has AVC protection logic therein, where the AVC protection logic is: and the SCADA protection signal and the infrared induction switching value are sent to an OR logic, or the output of the OR logic is the output of the AVC input state quantity or the AVC exit state quantity of the master station device.
On the basis of the system, preferably, the switching value transmission link comprises a measurement and control screen and a telecontrol screen which are positioned in the station interval, the infrared sensing switching value is connected to a reserved switching value empty node of the measurement and control screen, and the telecontrol screen uploads the infrared sensing switching value to the master station device positioned in the master station interval in a protocol forwarding mode.
As shown in fig. 1, fig. 2, and fig. 3, the present invention relates the infrared sensing switching value setting to the SCADA protection signal, and the other existing SCADA protection signals participate in the logic operation, and the present invention introduces the infrared sensing switching value into the AVC protection logic, and adjusts the priority to the highest, that is, as long as the infrared sensing switching value is in the closed state value of 1, the AVC protection logic outputs 1, and at this time, the present invention triggers to exit from AVC.
The infrared inductive switch is arranged in the high-voltage chamber door opening and the high-voltage chamber, a worker can detect the high-voltage chamber door opening before entering, then the worker checks the WEB machine of the transformer substation to confirm whether AVC exits or not, and then the worker can enter the high-voltage chamber to formally start working.
The design principle of the invention is as follows:
1. an infrared induction switch is arranged in a high-voltage chamber, and whether a person exists is represented by using the switching value of the infrared induction switch;
2. the infrared induction switch is selected as an electronic element for representing whether a person exists, and analog quantity is not selected for representing, so that the switching value can be transmitted by means of the existing switching value transmission link, and extra circuit layout is not required;
3. the control logic relation is not set independently, the infrared induction switching value is set and associated as an SCADA protection signal, and the infrared induction switching value is sent to AVC protection logic along with the SCADA protection signal; and the optimal grade of the configured infrared sensing switching value is utilized, so that the situation that the AVC is quitted or put into operation is guaranteed to be triggered through the infrared sensing switching value.
Therefore, the invention can be regarded as that the automatic triggering AVC switching control is realized by utilizing the switching value, transmission and logic control organically.
Compared with the prior art, the invention has the following advantages and beneficial effects:
when a worker enters a high-voltage chamber, an infrared induction switch of the high-voltage chamber is started, an internal normally open contact is closed, the contact is accessed to a transformer substation measurement and control screen, and a plant station end and a master station end are configured to be accessed to a telemechanical remote signaling point; and the control of the AVC of the transformer substation is automatically locked by setting the association as an SCADA protection signal action, and meanwhile, an alarm signal is sent.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A method for automatically disabling AVC when a person enters a high pressure chamber, comprising the steps of:
s1, arranging a normally open infrared inductive switch in the high-voltage chamber for detecting whether the person enters,
s2, transmitting the infrared induction switch quantity output by the infrared induction switch to the master station device through the switch quantity transmission link,
s3, correlating the infrared induction switching value received by the master station device into an SCADA protection signal, sending the infrared induction switching value into AVC protection logic along with the SCADA protection signal, and setting the triggering preference level of the infrared induction switching value to be the highest;
s4, taking the output of the AVC protection logic as the output of the AVC input state quantity or the AVC exit state quantity of the master station device, and downloading the output to an AVC switch cabinet through a transmission link;
the control process of S1-S4 is as follows:
when the personnel do not enter the high-voltage chamber, the infrared sensing switching value is in an on state, the AVC protection logic outputs an input AVC state value to the AVC switch cabinet, and the AVC switch cabinet is in an input state;
when personnel enter the high-voltage chamber, the infrared sensing switching value is in a closed state, the AVC protection logic outputs the AVC exit state value to the AVC switch cabinet, and the AVC switch cabinet is in an exit state;
the AVC protection logic comprises a logic unit and OR logic, the SCADA protection signal is sent to the logic unit, the output of the logic unit and the infrared induction switching value are sent to the OR logic, or the output of the logic is the output of the master station device for inputting the AVC state quantity or exiting the AVC state quantity;
the logic unit is any one of OR logic, AND logic, NOT logic, and any combination thereof.
2. The method for automatically disabling AVC when a person enters a high voltage chamber according to claim 1, wherein the switching value transmission link comprises a measurement and control screen and a telemechanical screen which are located in a station interval, the infrared sensing switching value is connected to a reserved switching value empty node of the measurement and control screen, and the telemechanical screen uploads the infrared sensing switching value to a master station device located in a master station interval in a protocol forwarding manner.
3. A method of automatically disabling AVC when a person enters a high voltage compartment according to claim 1, wherein AVC protection logic is an or logic, and said SCADA protection signal and said ir sensitive switching value are fed to the or logic, and an output of the or logic is an output of said master device to enter an AVC state quantity or to exit the AVC state quantity.
4. A system for automatically disabling AVC during entry of personnel into a high pressure room, comprising:
a normally open infrared inductive switch located in the high pressure chamber for generating infrared inductive switching value according to whether the person enters,
a switching value transmission link for transmitting the infrared sensing switching value to the master station device;
the master station device is used for outputting an AVC input state quantity or an AVC exit state quantity to the AVC switch cabinet according to the infrared induction switching quantity;
the AVC switch cabinet is used for performing a switching action or a quitting action according to the switching-in or quitting state quantity; when the infrared inductive switch does not detect the person, the on-off switching value is output and is represented by 0, and when the infrared inductive switch detects the person, the on-off switching value is output and is represented by 1; when the master station device obtains the switching value of the on state, the input AVC state quantity is output, and when the master station device obtains the switching value of the off state, the output exiting AVC state quantity is output;
the infrared induction switching value is set and associated in the master station device to be an SCADA protection signal, AVC protection logic is arranged in the master station device and comprises a logic unit or logic, the SCADA protection signal is sent to the logic unit, the output of the logic unit and the infrared induction switching value are sent to the OR logic, or the output of the logic is the output of the master station device for inputting the AVC state quantity or exiting the AVC state quantity.
5. A system for automatic AVC deactivation according to claim 4, wherein said logic unit is any one of OR logic, AND logic, NOT logic, and any combination thereof.
6. A system for automatically disabling AVC when a person enters a high voltage room as claimed in claim 4, wherein said master device has IR sensitive switching value settings associated therewith as SCADA protection signals, and wherein AVC protection logic is provided within the master device, the AVC protection logic being: and the SCADA protection signal and the infrared induction switching value are sent to an OR logic, or the output of the OR logic is the output of the AVC input state quantity or the AVC exit state quantity of the master station device.
7. A system for automatically disabling AVC for personnel entering a high voltage chamber according to any of claims 4-6, wherein the switching value transmission link comprises a measurement and control screen and a telemechanical screen located in the station bay, the IR sensitive switching value is connected to the reserved switching value space node of the measurement and control screen, and the telemechanical screen uploads the IR sensitive switching value to the master station device located in the master station bay in a protocol forwarding manner.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210334Y (en) * | 2008-04-01 | 2009-03-18 | 河南省电力公司安阳供电公司 | Infrared speech alarming device for dangerous region |
| CN105389942A (en) * | 2015-11-16 | 2016-03-09 | 国网浙江省电力公司台州供电公司 | Substation remote operation warning system |
| CN205986326U (en) * | 2016-05-25 | 2017-02-22 | 国网宁夏电力公司石嘴山供电公司 | Transformer substation's hyperbaric chamber intelligent recognition device |
| CN110854872A (en) * | 2019-11-26 | 2020-02-28 | 国网四川省电力公司天府新区供电公司 | Automatic AVC (automatic voltage control) switching system for high-voltage chamber |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367672B (en) * | 2017-07-20 | 2019-11-26 | 国网江西省电力公司电力科学研究院 | High-tension switch cabinet Full-automatic belt electric detection method |
| CN110930640B (en) * | 2019-10-31 | 2021-07-27 | 成都智达电力自动控制有限公司 | High-voltage chamber AVC security linkage system and control method thereof |
| CN111340991A (en) * | 2020-04-08 | 2020-06-26 | 国网四川省电力公司遂宁供电公司 | AVC state controlled access control system and use method thereof |
-
2020
- 2020-07-03 CN CN202010631583.3A patent/CN111682648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201210334Y (en) * | 2008-04-01 | 2009-03-18 | 河南省电力公司安阳供电公司 | Infrared speech alarming device for dangerous region |
| CN105389942A (en) * | 2015-11-16 | 2016-03-09 | 国网浙江省电力公司台州供电公司 | Substation remote operation warning system |
| CN205986326U (en) * | 2016-05-25 | 2017-02-22 | 国网宁夏电力公司石嘴山供电公司 | Transformer substation's hyperbaric chamber intelligent recognition device |
| CN110854872A (en) * | 2019-11-26 | 2020-02-28 | 国网四川省电力公司天府新区供电公司 | Automatic AVC (automatic voltage control) switching system for high-voltage chamber |
Non-Patent Citations (1)
| Title |
|---|
| "石嘴山电网电容器频繁投切问题研究及AVC系统策略优化";杨阳;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20180315(第3期);C042-587 * |
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