CN107276085B - Method for realizing intelligent alarm of telemechanical - Google Patents

Method for realizing intelligent alarm of telemechanical Download PDF

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Publication number
CN107276085B
CN107276085B CN201710620601.6A CN201710620601A CN107276085B CN 107276085 B CN107276085 B CN 107276085B CN 201710620601 A CN201710620601 A CN 201710620601A CN 107276085 B CN107276085 B CN 107276085B
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state
contact
judged
switching
position state
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CN107276085A (en
Inventor
李泽时
莫浪娇
黄元君
曾淑贞
黄海恒
张宇
刘钦豪
吴慧贞
张君
马宇航
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
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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
    • 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
    • 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
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • 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
    • 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
    • Y04S10/16—Electric power substations

Abstract

The invention relates to the field of power system power grid monitoring and dispatching automation, in particular to a method for realizing intelligent alarm by a basic conventional telecontrol machine. The method comprises the following steps: s1: establishing a logic relation library for combining the switching value of the circuit breaker and the protection event into an intelligent alarm event; s2: establishing a virtual remote signaling table; s3: reading the deflection state of a breaker switch and the state of an event alarm signal; s4: performing logic operation; s5: judging whether the intelligent alarm issuing condition is met; s6: if the judgment in the S5 is yes, entering an intelligent alarm process, and ending after the alarm is finished; s7: if the determination in S5 is no, the alarm process is directly ended. Therefore, intelligent substation signal warning can be realized by using the conventional telemechanical.

Description

Method for realizing intelligent alarm of telemechanical
Technical Field
The invention relates to the field of power system power grid monitoring and dispatching automation, in particular to a method for realizing intelligent alarm by a telecontrol machine.
Background
In the field of power system power grid monitoring and dispatching automation, "intelligent alarm" refers to intelligent processing of alarm information, and original alarm information such as switch amount displacement and protection actions is integrated into event alarm information; the conventional telecontrol equipment is a telecontrol equipment which is generally operated in a conventional transformer substation at present, and mainly distinguishes the intelligent telecontrol equipment from the telecontrol equipment in the intelligent transformer substation.
At present, the substation is increasingly in an unattended mode, substation equipment is mainly monitored and scheduled by a scheduling automation system, a typical scheduling automation system scheduling master station monitor needs about 8000 to 10000 alarm signals per day, and the alarm signals are mainly general alarm signals which are transmitted by a conventional remote machine and are not subjected to integrated processing. In order to further improve the power grid monitoring level and the dispatching automation intelligentization level and realize the power grid monitoring intelligentization, southern power grid companies mainly develop research and application work of intelligent telemotivations at present, one of the important functions of the intelligent telemotivations is to integrate single signals in a transformer substation into event alarm data and realize intelligent alarm of transformer substation events, so that the purposes of reducing burden and improving efficiency of dispatching master station monitoring and improving the power grid monitoring intelligentization are achieved. The conventional remote motivation is adopted in a substation automation system in the current power grid operation, and the current signal processing method used by the conventional remote motivation cannot realize intelligent alarm of substation events.
The invention discloses a novel intelligent telemechanical device for realizing intelligent alarm technology of a transformer substation automation system, which has an intelligent alarm function only by upgrading and transforming equipment for most transformer substations adopting conventional telemechanical devices, wherein the conventional transformer substation intelligent transformation relates to multi-factor restriction of people, properties, objects and the like, a large number of conventional telemechanical devices of the transformer substations cannot be directly transformed into the intelligent telemechanical devices within a long time, and on the other hand, the daily operation and maintenance management of a power grid has urgent requirements on monitoring intellectualization.
Disclosure of Invention
The invention aims to overcome at least one defect in the prior art, provides the method for realizing the intelligent alarm by the remote motor, can realize the intelligent alarm process of the transformer substation signal by utilizing the conventional remote motor, and effectively reduces the manpower input, equipment input and financial input required by transformation.
In order to solve the technical problems, the technical scheme of the invention is as follows: a method for realizing intelligent alarm by a telecontrol machine comprises the following steps: s1: establishing a logic relation library for combining the switching value of the circuit breaker and the protection event into an intelligent alarm event; SS 2: establishing a virtual telecommand table, wherein the virtual telecommand table records switch deflection information; s3: reading the deflection state of a breaker switch and the state of an event alarm signal; s4: performing logic operation on the circuit breaker switch displacement information; s5: judging whether the intelligent alarm issuing condition is met; s6: if the judgment in the S5 is yes, entering an intelligent alarm process, and ending after the alarm is finished; s7: if the determination in S5 is no, the alarm process is directly ended. Therefore, intelligent substation signal warning can be realized by using the conventional telemechanical.
Further, the intelligent warning process in step S6 includes the following steps: s601: telemechanical remote signaling forwarding table; s602: telemechanical data transmission; s603: and the dispatching master station gives out an intelligent alarm. Thereby being capable of optimizing the intelligent alarm process.
Further, the intelligent alarm event in step S1 includes: the circuit breaker protection switching method comprises the following steps of position change information of a breaker switch position from closing to opening, position change information of a breaker switch position from opening to closing, information of protection reclosing pressure plate input, switch protection action signal information and switch protection reclosing action signal information. Thereby making the alarm condition more comprehensive and sufficient.
Furthermore, the position state of each breaker switch position respectively consists of the position state of a closing contact and the position state of a separating contact, and when the position state of the closing contact is judged to be 1 and the position state of the separating contact is judged to be 0, the breaker switch is judged to be in a closing state; and when the closed contact position state is judged to be 0 and the open contact position state is judged to be 1, judging that the breaker switch is in an open state.
Furthermore, the displacement information of the breaker switch position changed from closing to opening comprises: when the circuit breaker is in a closing state, the position state of an on-position contact is judged to be 1, after negation, the position state of an off-position contact is judged to be 0, the position state of the on-position contact and the position state of the off-position contact are subjected to AND operation, the position state of the on-position contact is judged to be 0, when the circuit breaker is switched from the closing position to the opening position, the position state of the on-position contact is judged to be 1, the position state of the off-position contact is judged to be 1, the position state of the on-position contact and the position state of the off-position contact are subjected to AND operation, the position state is judged to be 1, the fact that the circuit breaker is switched from the on position to the opening position is judged to be switched from the opening position is indicated at this moment;
the position change information of the breaker switch position changed by the opening and closing comprises: when the breaker is in an opening state, the position state of an opening contact is judged to be 1, the position state after inversion is 0, the position state of an closing contact is judged to be 0, the position state of the opening contact and the position state of the closing contact are subjected to AND operation, the judgment is 0, no single-point remote signaling is displaced, when the breaker is displaced from the opening state to the closing state, the position state of the opening contact is judged to be 0, the position state after inversion is 1, the position state of the closing contact is judged to be 1, the position state of the opening contact and the position state of the closing contact are subjected to AND operation, the judgment is 1, the fact that the breaker switch is displaced from the opening state to the closing state at the moment is shown, and the 2 nd remote signaling is defined in a virtual remote signaling definition table. Therefore, the judging logic of the state switch of the circuit breaker is optimized.
Further, the logical operation described in step S4 includes: a. when the breaker switch is switched from the opening position to the closing state, the displacement of the breaker switch from closing to opening is judged to be 1, otherwise, the displacement is 0; b. when the breaker switch is switched off from the opening position to the closing state, the displacement of the breaker switch position switched on from the opening displacement is judged to be 1, otherwise, the displacement is 0; c. judging to be 1 when the protection reclosing pressure plate is switched in and remote signaling is switched out, or judging to be 0; d. judging the switch protection action signal to be 1 when the remote signal is sent out, otherwise, judging the switch protection action signal to be 0; e. judging to be 1 when a switching-off protection reclosing action signal is remotely signaled, otherwise, judging to be 0; and calculating the discrimination results of a, c, d and e, and performing AND calculation on the discrimination results of b, c, d and e.
Further, the step of judging whether the intelligent alarm issuing condition is satisfied in S5 includes: and if the result of the judgment result of the a, c, d and e and the operation result of the judgment result of the b, c, d and e is 1 or the result of the judgment result of the b, c, d and e and the operation result of the b, c, d and e is 1, the intelligent alarm issuing condition is met, otherwise, the intelligent alarm issuing condition is not met.
Compared with the prior art, the beneficial effects are: the intelligent warning of the transformer substation signal can be realized by utilizing the conventional telemechanical, and a large amount of manpower, material resources and financial resources are saved.
Drawings
FIG. 1 is an overall flow chart of the present invention.
Fig. 2 is a logic diagram of breaker switch deflection information of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in fig. 1 and 2, a method for realizing intelligent alarm by a telecontrol machine includes the following steps: s1: establishing a logic relation library for combining the switching value of the circuit breaker and the protection event into an intelligent alarm event; s2: establishing a virtual telecommand table, wherein the virtual telecommand table records switch deflection information; s3: reading the deflection state of a breaker switch and the state of an event alarm signal; s4: performing logic operation on the circuit breaker switch displacement information; s5: judging whether the intelligent alarm issuing condition is met; s6: if the judgment in the S5 is yes, entering an intelligent alarm process, and ending after the alarm is finished; s7: if the determination in S5 is no, the alarm process is directly ended. Therefore, intelligent substation signal warning can be realized by using the conventional telemechanical.
Further, the intelligent warning process in step S6 includes the following steps: s601: telemechanical remote signaling forwarding table; s602: telemechanical data transmission; s603: and the dispatching master station gives out an intelligent alarm. Thereby being capable of optimizing the intelligent alarm process.
Further, the intelligent alarm event in step S1 includes: the circuit breaker protection switching method comprises the following steps of position change information of a breaker switch position from closing to opening, position change information of a breaker switch position from opening to closing, information of protection reclosing pressure plate input, switch protection action signal information and switch protection reclosing action signal information. Thereby making the alarm condition more comprehensive and sufficient.
Furthermore, the position state of each breaker switch position respectively consists of the position state of a closing contact and the position state of a separating contact, and when the position state of the closing contact is judged to be 1 and the position state of the separating contact is judged to be 0, the breaker switch is judged to be in a closing state; and when the closed contact position state is judged to be 0 and the open contact position state is judged to be 1, judging that the breaker switch is in an open state.
Furthermore, the displacement information of the breaker switch position changed from closing to opening comprises: when the circuit breaker is in a closing state, the position state of an on-position contact is judged to be 1, after negation, the position state of an off-position contact is judged to be 0, the position state of the on-position contact and the position state of the off-position contact are subjected to AND operation, the position state of the on-position contact is judged to be 0, when the circuit breaker is switched from the closing position to the opening position, the position state of the on-position contact is judged to be 1, the position state of the off-position contact is judged to be 1, the position state of the on-position contact and the position state of the off-position contact are subjected to AND operation, the position state is judged to be 1, the fact that the circuit breaker is switched from the on position to the opening position is judged to be switched from the opening position is indicated at this moment; the position change information of the breaker switch position changed by the opening and closing comprises: when the breaker is in an opening state, the position state of an opening contact is judged to be 1, the position state after inversion is 0, the position state of an closing contact is judged to be 0, the position state of the opening contact and the position state of the closing contact are subjected to AND operation, the judgment is 0, no single-point remote signaling is displaced, when the breaker is displaced from the opening state to the closing state, the position state of the opening contact is judged to be 0, the position state after inversion is 1, the position state of the closing contact is judged to be 1, the position state of the opening contact and the position state of the closing contact are subjected to AND operation, the judgment is 1, the fact that the breaker switch is displaced from the opening state to the closing state at the moment is shown, and the 2 nd remote signaling is defined in a virtual remote signaling definition table. Therefore, the judging logic of the state switch of the circuit breaker is optimized.
Further, the logical operation described in step S4 includes: a. when the breaker switch is switched from the opening position to the closing state, the displacement of the breaker switch from closing to opening is judged to be 1, otherwise, the displacement is 0; b. when the breaker switch is switched off from the opening position to the closing state, the displacement of the breaker switch position switched on from the opening displacement is judged to be 1, otherwise, the displacement is 0; c. judging to be 1 when the protection reclosing pressure plate is switched in and remote signaling is switched out, or judging to be 0; d. judging the switch protection action signal to be 1 when the remote signal is sent out, otherwise, judging the switch protection action signal to be 0; e. judging to be 1 when a switching-off protection reclosing action signal is remotely signaled, otherwise, judging to be 0; and calculating the discrimination results of a, c, d and e, and performing AND calculation on the discrimination results of b, c, d and e.
Further, the step of judging whether the intelligent alarm issuing condition is satisfied in S5 includes: and if the result of the judgment result of the a, c, d and e and the operation result of the judgment result of the b, c, d and e is 1 or the result of the judgment result of the b, c, d and e and the operation result of the b, c, d and e is 1, the intelligent alarm issuing condition is met, otherwise, the intelligent alarm issuing condition is not met.
The method can be applied to the protection event of '10 kV 701 line protection action protection reclosing success' of a certain transformer substation, and the breaker switch can also be a 701 switch.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (2)

1. A method for realizing intelligent alarm of a telemechanical is characterized by comprising the following steps: s1: establishing a logic relation library for combining the switching value of the circuit breaker and the protection event into an intelligent alarm event; s2: establishing a virtual telecommand table, wherein the virtual telecommand table records switch deflection information; s3: reading the deflection state of a breaker switch and the state of an event alarm signal; s4: performing logic operation on the circuit breaker switch displacement information; s5: judging whether the intelligent alarm issuing condition is met; s6: if the judgment in the S5 is yes, entering an intelligent alarm process, and ending after the alarm is finished; s7: if the judgment in the S5 is negative, the alarm process is directly ended;
the intelligent alarm event of step S1 includes: the method comprises the following steps that displacement information of a breaker switch position changed from closing to opening, displacement information of the breaker switch position changed from opening to closing, information of protection reclosing pressure plate input, switch protection action signal information and switch protection reclosing action signal information are obtained;
the position state of each breaker switch position respectively consists of the position state of a closing contact and the position state of an opening contact, and when the position state of the closing contact is judged to be 1 and the position state of the opening contact is judged to be 0, the breaker switch is judged to be in a closing state; when the closed contact position state is judged to be 0 and the open contact position state is judged to be 1, judging that the breaker switch is in an open state;
the displacement information of the breaker switch position changed from closing to opening comprises: when the circuit breaker is in a closing state, the position state of an on-position contact is judged to be 1, after the inversion is 0, the position state of an off-position contact is judged to be 0, the position state of the on-position contact and the position state of the off-position contact are subjected to AND operation, the judgment is 0, and no single-point remote signaling displacement exists; when the breaker is switched off from the switching-on position, the switching-on contact position state is judged to be 0, the inverted switching-off position state is 1, the switching-off contact position state is judged to be 1, the switching-on contact position state and the switching-off contact position state are subjected to AND operation and judged to be 1, at the moment, the fact that a breaker switch is switched off from the switching-on position to the switching-off state is shown, and the 1 st point remote signaling is defined in a virtual remote signaling definition table;
the position change information of the breaker switch position changed by the opening and closing comprises: when the breaker is in an opening state, the position state of an opening contact is judged to be 1, the position state is 0 after inversion, the position state of a closing contact is judged to be 0, the position state of the opening contact and the position state of the closing contact are subjected to AND operation, the judgment is 0, and no single-point remote signaling displacement exists; when the breaker is switched on from the switching-off position, the position state of a switching-off contact is judged to be 0, the position state of the switching-on contact is judged to be 1 after inversion, the position state of the switching-on contact is judged to be 1, the position state of the switching-off contact and the position state of the switching-on contact are subjected to AND operation, the judgment is 1, the fact that the breaker switch is switched off from the switching-off position to the switching-on state is shown, and the 2 nd point remote signaling is defined in a virtual remote signaling definition table;
the logical operation described in step S4 includes: a. when the breaker switch is switched from the opening position to the closing state, the displacement of the breaker switch from closing to opening is judged to be 1, otherwise, the displacement is 0; b. when the breaker switch is switched off from the opening position to the closing state, the displacement of the breaker switch position switched on from the opening displacement is judged to be 1, otherwise, the displacement is 0; c. judging to be 1 when the protection reclosing pressure plate is switched in and remote signaling is switched out, or judging to be 0; d. judging the switch protection action signal to be 1 when the remote signal is sent out, otherwise, judging the switch protection action signal to be 0; e. judging to be 1 when a switching-off protection reclosing action signal is remotely signaled, otherwise, judging to be 0; performing AND operation on the discrimination results a, c, d and e, and performing AND operation on the discrimination results b, c, d and e;
judging whether the intelligent alarm issuing condition is met in the step S5 includes: and if the result of the judgment result of the a, c, d and e and the operation result of the judgment result of the b, c, d and e is 1 or the result of the judgment result of the b, c, d and e and the operation result of the b, c, d and e is 1, the intelligent alarm issuing condition is met, otherwise, the intelligent alarm issuing condition is not met.
2. The method for realizing intelligent alarm by using a telemechanical as claimed in claim 1, wherein the intelligent alarm process in step S6 comprises the following steps: s601: telemechanical remote signaling forwarding table; s602: telemechanical data transmission; s603: and the dispatching master station gives out an intelligent alarm.
CN201710620601.6A 2017-07-26 2017-07-26 Method for realizing intelligent alarm of telemechanical Active CN107276085B (en)

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CN111009877B (en) * 2019-12-03 2021-09-10 国电南瑞科技股份有限公司 Trip recovery alarm method and device based on signal correlation analysis

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