CN101917063A - Method and system for automatically switching master station-centralized spare power source - Google Patents
Method and system for automatically switching master station-centralized spare power source Download PDFInfo
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- CN101917063A CN101917063A CN 201010237206 CN201010237206A CN101917063A CN 101917063 A CN101917063 A CN 101917063A CN 201010237206 CN201010237206 CN 201010237206 CN 201010237206 A CN201010237206 A CN 201010237206A CN 101917063 A CN101917063 A CN 101917063A
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Abstract
The invention relates to a method and a system for automatically switching a master station-centralized spare power source. The method comprises the following steps of: monitoring remote signaling displacement information of an enhanced message service (EMS) system in real time; when the remote signaling displacement information is monitored, starting a spare power automatic switching analysis process to obtain topological model information and mode data cross section; analyzing a network topology; judging whether a bus truly loses voltage or not under the condition that the existence of topology power loss in spare power automatic switching equipment is defined by analysis; if the bus truly loses voltage, judging whether the equipment is locked for spare power automatic switching or not according to the information of the EMS system; and if the equipment is not locked for spare power automatic switching, determining an adopted spare power automatic switching scheme by screening to perform a sequence action corresponding to the spare power automatic switching scheme. Spare power automatic switching logic analysis is performed combined with the real-time information of the EMS system, so that power supply protection reliability is enhanced and long-term development of a power supply system is facilitated.
Description
Technical field
The present invention relates to Automation of Electric Systems scheduling field, centralized automatic closing method of particularly a kind of main website and centralized automatic closing system of a kind of main website.
Background technology
Along with socioeconomic growing, scale of power enlarges day by day, electric network composition also becomes increasingly complex, the user is also more and more higher to the requirement of the q﹠r of power supply, in order effectively to guarantee the reliability of power supply, normally adopt the prepared auto restart mode, when power supply is broken down, switch to and power, to satisfy the demand of user power supply reliability by stand-by power supply.In present prepared auto restart mode, usually the information that all is based on the spot solves the problem that stand-by power supply drops into automatically, be that the prepared auto restart mode of setting up oneself is installed respectively in each substation of electric power system, main website for electric power system, can't learn the prepared auto restart switch instances of each substation, can't carry out distant place control, exist certain policy bureau sex-limited, can't adapt to the variation of operational mode, also can't solve the problem of complication system, complicated control, for example: distant place stand-by power supply drops into automatically, the single supply serial is powered or the like.In addition; because the limitation of information; the control strategy of prepared auto restart also can't be realized matching with safe auto-control device on the spot, the optimization between different prepared auto restart is coordinated, with protection cooperate and the stand-by power supply overload is controlled or the like; on the reliability of protection power supply, have limitation, can't be applicable to the long term growth of electric power system.
Summary of the invention
At above-mentioned problems of the prior art; the object of the present invention is to provide centralized automatic closing method of a kind of main website and centralized automatic closing system of main website; its information in conjunction with the EMS system is carried out the prepared auto restart logic analysis; further improve the reliability of power supply protection, helped the long term growth of electric power system.
For achieving the above object, the present invention by the following technical solutions:
The centralized automatic closing method of a kind of main website comprises step:
Monitor the remote signalling displacement information of EMS system, when listening to the remote signalling displacement information of EMS system, obtain topological model information and mode data section in real time, carry out the network topology analysis, judge whether the equipment that has defined prepared auto restart exists topological dead electricity;
If there is topological dead electricity, judge whether truly decompression of bus;
If the true decompression of bus, in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart;
If not locking prepared auto restart, the prepared auto restart scheme that is adopted is determined in screening.
Centralized automatic closing system of a kind of main website comprises:
The network monitoring module is used to monitor the remote signalling displacement information of EMS system;
Model and mode data processing module are used for obtaining topological model information and mode data section in real time when described network monitoring module listens to the remote signalling displacement information of EMS system;
The network topology analysis module is used for carrying out the network topology analysis according to topological model information and mode data section that described model and mode data processing module obtain, judges whether the equipment that has defined prepared auto restart exists topological dead electricity;
Whether truly the decompression determination module is used for when described network topology analysis module judges that there is topological dead electricity in the equipment that has defined prepared auto restart, judge bus decompression;
Lock modules is used for when described decompression determination module is judged the true decompression of bus, and in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart;
Prepared auto restart option screening module is used for when described lock modules is judged non-latching prepared auto restart, and the prepared auto restart scheme that is adopted is determined in screening.
According to the solution of the present invention; it is the remote signalling displacement information of monitoring the EMS system in real time; when monitoring remote signalling displacement information; start the analytic process of prepared auto restart; obtain topological model information and mode data section; carry out the network topology analysis; draw under the situation that there is topological dead electricity in the equipment that has defined prepared auto restart in analysis; judge whether truly decompression of bus again; if true decompression, again in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart; if there is not the locking prepared auto restart; the prepared auto restart scheme that is adopted is determined in screening again, to carry out the sequence action of this prepared auto restart scheme correspondence, carries out the prepared auto restart logic analysis owing to combine the real time information of EMS system; further improve the reliability of power supply protection, helped the long term growth of electric power system.
Description of drawings
Fig. 1 is the schematic flow sheet of the centralized automatic closing method embodiment of main website of the present invention;
Fig. 2 is the monotropic mode of connection schematic diagram of single line;
Fig. 3 is the mode of connection schematic diagram of 2 changes, 3 lines;
Fig. 4 is a T mode of connection schematic diagram;
Fig. 5 is the structural representation of centralized automatic closing system of main website of the present invention.
Embodiment
Below in the mode of specific embodiment centralized automatic closing method of main website of the present invention and centralized automatic closing system of main website are elaborated.
Referring to shown in Figure 1, be the schematic flow sheet of the centralized automatic closing method embodiment of main website of the present invention, it comprises step:
Step S101: monitor the remote signalling displacement information of EMS system (Energy Management System EMS), judge whether to receive the remote signalling displacement information of EMS system,, enter step S102 if receive;
Step S102: obtain topological model information and mode data section in real time, carry out the network topology analysis, enter step S103 after analysis is finished;
Step S103: according to the result that network topology is analyzed, judge whether the equipment that has defined prepared auto restart exists topological dead electricity, if do not exist, then undo if exist, then enters step S104;
Step S104: whether true judge bus decompression, if not true decompression, undo then is if true decompression enters step S105;
Step S105: in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart, if the locking prepared auto restart, undo then is if not locking prepared auto restart then enters step S106;
Step S106: the prepared auto restart scheme that is adopted is determined in screening, to carry out the sequence action of this prepared auto restart scheme correspondence.
According to the solution of the present invention; it is the remote signalling displacement information of monitoring the EMS system in real time; when monitoring remote signalling displacement information; start the analytic process of prepared auto restart; obtain topological model information and mode data section; carry out the network topology analysis; draw under the situation that there is topological dead electricity in the equipment that has defined prepared auto restart in analysis; judge whether truly decompression of bus again; if true decompression, again in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart; if not locking prepared auto restart; the prepared auto restart scheme that is adopted is determined in screening again, to carry out the sequence action of this prepared auto restart scheme correspondence, carries out the prepared auto restart logic analysis owing to combine the real time information of EMS system; further improve the reliability of power supply protection, helped the long term growth of electric power system.
The centralized automatic closing method of main website according to the present invention; it need not to carry out constantly the analytic process of prepared auto restart; it is earlier network message to be monitored processing; association is screened, screens and made up to the remote signalling displacement information/remote information of real-time listening EMS system/safety and stability control device action message/multiple information such as protection information to these information.To the monitoring of these network messages, can be to adopt multithreading to handle, thereby can guarantee correctly to receive the information of handling automatic network, when listening to the remote signalling displacement information of EMS system, begin to start the prepared auto restart analytic function.
Consider the influence of the action of safety and stability control device, after listening to the remote signalling displacement information of EMS system, can judge whether to exist the safety and stability control device action message earlier, if exist, then locking prepared auto restart function does not start the process that prepared auto restart is analyzed, if there is no, restart the prepared auto restart analytic function, match with safety and stability control device realizing, prevent the misoperation that the action owing to safety and stability control device causes.
After starting the prepared auto restart analytic function, obtain earlier topological model information and mode data (for example remote measurement, remote signalling etc.) section in real time, carry out the network topology analysis, after the analysis of the whole network network topology finishes, the equipment that has defined prepared auto restart is carried out topological charged analysis, judge whether to exist topological dead electricity, if there is no topological dead electricity, then withdraw from, finish the prepared auto restart analytic process;
If there is topological dead electricity, because the network topology analysis depends on the correctness of electrical network network model, the integrality of annexation and the correctness of correctness and mode data, therefore, whether truly the result who obtains by the network topology analysis only represents this equipment topology dead electricity, also need further judgment device dead electricity.
When the whether true dead electricity of judgment device, can not have stream in conjunction with bus loss of pressure, inlet wire, exist these three aspects of measurement transition to come synthetic determination, according to the field adjustable needs, can manually adjust concrete adopt which, because the remote signalling telemetry intelligence (TELINT) may bring false signal to disturb, below just in conjunction with telemetry come judgment device whether the mode of true dead electricity be elaborated, also promptly come judgment device transition whether to occur measuring in conjunction with telemetry, measure transition if exist, can judge that then this equipment is true dead electricity.
Whether judgment device transition occurs measuring, specifically can remote measurement transition whether occur according to the measuring point of this equipment and judge.When judging whether certain measuring point remote measurement transition occurs, can be based on the preceding measuring value of Preset Time section, obtain the current measuring value of equipment, and calculate the ratio value of the measuring value before current measuring value and the Preset Time section, if this ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point, specifically, suppose that current time is T, the Preset Time section is t1, then with T measuring value constantly divided by T-t1 measuring value constantly, if resulting ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point.
Consider the hysteresis quality that telemetry is uploaded, can be that time-delay is obtained corresponding measuring value as the current measuring value of measuring point, specifically, suppose that current time is T, the Δ t that then delays time obtains measuring value, promptly obtains the measuring value of T+ Δ t measuring value constantly as this measuring point current time, uses T+ Δ t measuring value constantly divided by T-t1 measuring value constantly then, if resulting ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point.
Coverage rate and possibility various case based on measurement equipment, can be that a plurality of measuring points in the equipment region are when remote measurement transition occurring, judge that just measurement transition has appearred in this equipment, these measurement points can be that bus line voltage, phase voltage, circuit are meritorious, circuit is idle, line current, Transformer Winding is meritorious, Transformer Winding is idle, Transformer Winding electric current etc., the number that specifically needs the measuring point of employing, can freely set according to actual needs, need one at least.
Wherein take all factors into consideration under the situation of a plurality of measuring points at needs, each measuring point corresponding preset time period, delay time section and predetermined threshold value can be set at identical value, also can set respectively, are set at different value.
Being that the monotropic mode of connection schematic diagram of single line is an example shown in Fig. 2, during I mother dead electricity, can measure (comprising line voltage, phase voltage etc.) and inlet wire 1 that mother I connected measures (comprise meritorious, idle, electric current etc.), main transformer 1 high-pressure side winding measurement that mother I connected (comprise meritorious, idle, electric current etc.) and measures judgement to the female bus of I, when remote measurement transition appears in the measuring point of the default number in this zone, when for example remote measurement transition appears in the electric current of the electric current of inlet wire 1, mother's I voltage, main transformer 1, can think that then measurement transition has appearred in mother I.
Only coming determining apparatus whether under the situation of true dead electricity according to measuring transition, if transition appears measuring in determining apparatus, then can the true dead electricity of determining apparatus, enter subsequent process then, otherwise withdraw from, finish the prepared auto restart analytic process.
Judging under the situation that the true decompression of bus, prepared auto restart operation condition satisfy; again in conjunction with the state of various information (information of for example listing, protection information, the remote information etc.) judgment device of EMS system; for example; analyze to determine whether the defined equipment of prepared auto restart is fault equipment, whether judgment device the locking prepared auto restart.The prepared auto restart locking can have multiple situation, for example: and the stand-by power supply decompression, if stand-by power supply bus loss of pressure, inlet wire no current, then this prepared auto restart of locking; Manual operation, when manual operation causes bus loss of pressure, also this prepared auto restart of locking; The maintenance of listing, when listing maintenance on circuit or the bus, this prepared auto restart of locking; Equipment fault, when receiving the protection actuating signal of related bus equipment, this prepared auto restart of locking perhaps reads the station alarm window, if this station has fault that this prepared auto restart of locking takes place; Throw back connection line overload, this prepared auto restart of locking if be equipped with; If this prepared auto restart is an exit status, then do not start this prepared auto restart of locking or the like.
According to remote signalling displacement information, accident SOE (Sequence Of Events; sequence of events recording) information, protection information; the running status of coupling system; in fact can determine the fault zone of system and the power supply interrupted district that is caused (recoverable power supply interrupted district); the mode of judging power supply interrupted district can adopt existing topology search technology to carry out, and can carry out option screening to enter next step if the defined equipment of prepared auto restart is in the power supply interrupted district scope.With the monotropic schematic diagram of the single line shown in Fig. 1 is example, draw the female upstream of I power supply area fault if judge, it is inlet wire 1 above equipment fault, cause the female dead electricity of I this moment, mother I is in the dead electricity zone, can further analyze this moment, if mother I belongs to the fault zone, and the prepared auto restart function of this equipment of locking so.If the device latchup prepared auto restart then withdraws from, no longer carry out the step of follow-up prepared auto restart option screening.
If the non-latching prepared auto restart of equipment, then carry out the screening of prepared auto restart scheme, when carrying out the screening of prepared auto restart scheme, it can be the operational mode of judging current system in conjunction with network analysis and switch running status, simultaneously can adopt which kind of prepared auto restart scheme in conjunction with the recovery policy analysis of dead electricity district, this is to consider, judges the operational mode of system like clockwork, can prevent the malfunction and the tripping that cause owing to the mode error in judgement.
After having determined the prepared auto restart scheme, in order to ensure the reliability of this prepared auto restart scheme, action policy and model library in this prepared auto restart scheme can also be mated, whether verification Satisfying Matching Conditions, if satisfy, then can carry out the action sequence in this prepared auto restart scheme.
When the sequence action of carrying out prepared auto restart scheme correspondence, based on different consideration strategies, different executive modes can be arranged: under open loop situations, can be to point out selected prepared auto restart scheme (or being referred to as the prepared auto restart recovery policy), by manually selected this prepared auto restart recovery policy of carrying out of system operator to system operator; Under closed-loop case, can be directly selected prepared auto restart recovery policy to be sent to the SCADA system to carry out.
According to the main website centralized stand-by power supply input method of the invention described above, can solve prepared auto restart problem between 2 stations that become under the mode of connection of 3 lines as shown in Figure 3.Promptly under the operational mode of circuit L2 as the stand-by power supply circuit of third transformer station, define by rational prepared auto restart mode, if this moment, the L1 dead electricity caused transformer station's second dead electricity and circuit L3 and third transformer station normally to be moved, this moment system can detect second substation bus bar dead electricity and and stand-by power supply third transformer station charged, can automatically switch to by circuit L2 and power by disconnecting DL2, the DL4 that closes.
According to the main website centralized stand-by power supply input method of the invention described above, can also solve the automatic closing problem under the T mode of connection as shown in Figure 4 simultaneously.The new 35KV of the change outlet of 220KV north, 220KV pool head become the 35KV outlet and connect pattern to the change power supply of 35KV spring Shen by T.Under normal circumstances, 1DL and 2DL are in closing position, and 3DL disconnects, and the Shen change of spring this moment newly becomes the 35KV bussed supply by north, and 3DL is in heat and is equipped with state.Under this operational mode, can determine that the fault zone is not on the T link this moment if the spring Shen becomes the female dead electricity of I, pool head in a disguised form answers the 35KV bus to possess power supply capacity simultaneously, standby power system can automatic disconnection 2DL so, the 3DL that closes then, the spring Shen became to change by pool head and became the 35KV bussed supply this moment.
In addition, the centralized automatic closing mode of main website of the present invention, it can also be reserved resources as backup auto-activating device in the station, move with open loop approach, prepared auto restart in existing station since in a variety of causes tripping or the station backup auto-activating device owing to a variety of causes when withdrawing from temporarily, at this moment, the centralized stand-by power supply investing method of main website of the present invention can be used as the reserve mode and moves, and plays the reserve effect.Backup auto-activating device has moved and has successfully restored electricity in the station, because the present invention program can discern measurement transition, therefore, even receive remote signalling displacement information and judge that topological dead electricity malfunction can not take place yet.When the prepared auto restart condition meets and when backup auto-activating device did not move in standing, the centralized prepared auto restart mode of main website can be moved and initiate a message, Systems Operator or dispatcher can determine whether to carry out remote control in the mode of manual intervention.
According to the centralized automatic closing method of the main website of the invention described above, the present invention also provides centralized automatic closing system of a kind of main website, as shown in Figure 5, is the structural representation of the centralized automatic closing system embodiment of main website of the present invention, and it comprises:
Model and mode data processing module 502 are used for obtaining topological model information and mode data section in real time when network monitoring module 502 listens to the remote signalling displacement information of EMS system;
Network topology analysis module 503 is used for carrying out the network topology analysis according to topological model information and mode data section that model and mode data processing module 502 obtain, judges whether the equipment that has defined prepared auto restart exists topological dead electricity;
Whether truly decompression determination module 504 is used for when network topology analysis module 503 judges that there is topological dead electricity in the equipment that has defined prepared auto restart, judge bus decompression;
Prepared auto restart option screening module 506 is used for when lock modules 505 is judged not locking prepared auto restart, and the prepared auto restart scheme that is adopted is determined in screening.
Centralized automatic closing system of main website according to the present invention; it monitors the remote signalling displacement information of EMS system in real time by network monitoring module 501; when monitoring remote signalling displacement information; start the analytic process of prepared auto restart; obtain real-time topological model information and mode data section by model and mode data processing module 502; and carry out the network topology analysis by network topology analysis module 503; draw under the situation that there is topological dead electricity in the equipment that has defined prepared auto restart in analysis; judge whether truly decompression of bus by decompression determination module 504 again; if true decompression; again by the information of lock modules 505 in conjunction with the EMS system; whether judgment device the locking prepared auto restart; if not locking prepared auto restart; determine the prepared auto restart scheme that is adopted by 506 screenings of prepared auto restart option screening module again; to carry out the sequence action of this prepared auto restart scheme correspondence; carry out the prepared auto restart logic analysis owing to combine the real time information of EMS system; further improve the reliability of power supply protection, helped the long term growth of electric power system.
Wherein, the monitoring of 501 pairs of network messages of network monitoring module; can be the remote signalling displacement information/remote information/safety and stability control device action message/multiple information such as protection information of real-time listening EMS system, and association is screened, screens and made up to these information.Monitoring to these network messages, can be to adopt multithreading to handle, thereby can guarantee correctly to receive the information of handling automatic network, when listening to the remote signalling displacement information of EMS system, begin to enter the function that prepared auto restart is analyzed, obtain real-time topological model information and mode data section by model and mode data processing module 502.
Consider the influence of the action of safety and stability control device, after listening to the remote signalling displacement information of EMS system, can judge whether to exist the safety and stability control device action message earlier, if exist, then locking prepared auto restart function does not start the prepared auto restart analytic function, if there is no, restart the prepared auto restart analytic function, to match with safety and stability control device, the malfunction of avoiding the action owing to safety and stability control device to take place.Be that the centralized stand-by power supply input coefficient of main website of the present invention also comprises:
In this case, determine when not having the safety and stability control device action message in action message module 5012, model and mode data processing module 502 obtain topological model information and mode data section again.
After acquiring topological model information and mode data (for example remote measurement, remote signalling etc.) section, carry out the network topology analysis by network topology analysis module 503, after the analysis of the whole network network topology finishes, the equipment that has defined prepared auto restart is carried out topological charged analysis, judge whether to exist topological dead electricity, if there is no topological dead electricity then withdraws from, and finishes the prepared auto restart analytic process;
If there is topological dead electricity, because the network topology analysis depends on the correctness of electrical network network model, the integrality of annexation and the correctness of correctness and mode data, therefore, whether truly the result who obtains by the network topology analysis only represents this equipment topology dead electricity, thereby also need be by decompression determination module 504 further judgment device dead electricity.
When the whether true dead electricity of judgment device, can not have stream in conjunction with bus loss of pressure, inlet wire, exist these three aspects of measurement transition to come synthetic determination, according to the field adjustable needs, can manually adjust concrete adopt which, because the remote signalling telemetry intelligence (TELINT) may bring false signal to disturb, below just in conjunction with telemetry come judgment device whether the mode of true dead electricity be elaborated, also promptly come judgment device transition whether to occur measuring in conjunction with telemetry, measure transition if exist, can judge that then this equipment is true dead electricity.
Judging that in conjunction with measuring the transition mode at this moment, as shown in Figure 5, this decompression determination module 504 includes: metric data processing module 5041 is used for judgment device and transition whether occurs measuring under the situation of true decompression whether.only come the situation truly whether dead electricity is judged by the mode that measures transition under, when metric data processing module 5041 determining apparatus occurred measuring transition, decompression determination module 504 was the true decompression of this equipment corresponding bus lines of decidable.
Whether judgment device transition occurs measuring, specifically can remote measurement transition whether occur according to the measuring point of this equipment and judge.When judging whether certain measuring point remote measurement transition occurs, can be based on the preceding measuring value of Preset Time section, obtain the current measuring value of equipment, and calculate the ratio value of the measuring value before current measuring value and the Preset Time section, if this ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point, specifically, suppose that current time is T, the Preset Time section is t1, then with T measuring value constantly divided by T-t1 measuring value constantly, if resulting ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point.
Consider the hysteresis quality that telemetry is uploaded, can be that time-delay is obtained corresponding measuring value as current measuring value, specifically, suppose that current time is T, the Δ t that then delays time obtains measuring value, promptly obtains the measuring value of T+ Δ t measuring value constantly as this measuring point current time, uses T+ Δ t measuring value constantly divided by T-t1 measuring value constantly then, if resulting ratio value reaches this measuring point corresponding preset threshold value, judge that then remote measurement transition has appearred in this measuring point.
Coverage rate and possibility various case based on measurement equipment, can be that a plurality of measuring points in the equipment region are when remote measurement transition occurring, judge that just measurement transition has appearred in this equipment, these measurement points can be that bus line voltage, phase voltage, circuit are meritorious, circuit is idle, line current, Transformer Winding is meritorious, Transformer Winding is idle, Transformer Winding electric current etc., the number that specifically needs the measuring point of employing, can freely set according to actual needs, need one at least.
Wherein take all factors into consideration under the situation of a plurality of measuring points at needs, each measuring point corresponding preset time period, delay time section and predetermined threshold value can be set at identical value, also can set respectively, are set at different value.
Being that the monotropic mode of connection schematic diagram of single line is an example shown in Fig. 2, during I mother dead electricity, can measure (comprising line voltage, phase voltage etc.) and inlet wire 1 that mother I connected measures (comprise meritorious, idle, electric current etc.), main transformer 1 high-pressure side winding measurement that mother I connected (comprise meritorious, idle, electric current etc.) and measures judgement to the female bus of I, when remote measurement transition appears in the measuring point of the default number in this zone, when for example remote measurement transition appears in the electric current of the electric current of inlet wire 1, mother's I voltage, main transformer 1, can think that then measurement transition has appearred in mother I.
Only coming determining apparatus whether under the situation of true dead electricity according to measuring transition, if transition appears measuring in determining apparatus, then can the true dead electricity of determining apparatus.
Judging under the situation that the true decompression of bus, prepared auto restart operation condition satisfy; lock modules 505 is again in conjunction with the state of various information (information of for example listing, protection information, the remote information etc.) judgment device of EMS system; for example; analyze to determine whether the defined equipment of prepared auto restart is fault equipment, whether judgment device the locking prepared auto restart.The prepared auto restart locking can have multiple situation, for example: and the stand-by power supply decompression, if stand-by power supply bus loss of pressure, inlet wire no current, then this prepared auto restart of locking; Manual operation, when manual operation causes bus loss of pressure, also this prepared auto restart of locking; The maintenance of listing, when listing maintenance on circuit or the bus, this prepared auto restart of locking; Equipment fault, when receiving the protection actuating signal of related bus equipment, this prepared auto restart of locking perhaps reads the station alarm window, if this station has fault that this prepared auto restart of locking takes place; Throw back connection line overload, this prepared auto restart of locking if be equipped with; If this prepared auto restart is an exit status, then do not start this prepared auto restart of locking or the like.
According to remote signalling displacement information, accident SOE (Sequence Of Events; sequence of events recording) information, protection information; the running status of coupling system; in fact can determine the fault zone of system and the power supply interrupted district that is caused (recoverable power supply interrupted district); the mode of judging power supply interrupted district can adopt existing topology search technology to carry out, and can carry out option screening to enter next step if the defined equipment of prepared auto restart is in the power supply interrupted district scope.With the monotropic schematic diagram of the single line shown in Fig. 1 is example, draw the female upstream of I power supply area fault if judge, it is inlet wire 1 above equipment fault, cause the female dead electricity of I this moment, mother I is in the dead electricity zone, can further analyze this moment, if mother I belongs to the fault zone, and the prepared auto restart function of this equipment of locking so.If the device latchup prepared auto restart then withdraws from, no longer carry out the step of follow-up prepared auto restart option screening.
If not locking of equipment prepared auto restart, then carry out the screening of prepared auto restart scheme by prepared auto restart option screening module 506, when carrying out the screening of prepared auto restart scheme, it can be the operational mode of judging current system in conjunction with network analysis and switch running status, can go out to adopt which kind of prepared auto restart scheme in conjunction with the real-time searching analysis of dead electricity district recovery policy simultaneously, this is to consider, judge the operational mode of system like clockwork, can prevent the malfunction and the tripping that cause owing to the mode error in judgement, be a series of on off sequence straighforward operations in the prepared auto restart scheme.
After having determined the prepared auto restart scheme, in order to ensure the reliability of this prepared auto restart scheme, action policy and model library in this prepared auto restart scheme can also be mated, whether verification Satisfying Matching Conditions, if satisfy, then can carry out the action sequence in this prepared auto restart scheme.
When the sequence in carrying out the prepared auto restart scheme was moved, the consideration strategy based on different can have different executive modes:
Under open loop situations, can be to point out selected prepared auto restart scheme (or being referred to as the prepared auto restart recovery policy) to system operator, by manually selected this prepared auto restart recovery policy of carrying out of system operator by system;
Under closed-loop case, can be directly selected prepared auto restart recovery policy to be sent to the SCADA system by system to carry out, at this moment, centralized automatic closing system of main website of the present invention also comprises sequence straighforward operation module 507, is used for the relevant action sequence that remote control SCADA system carries out the prepared auto restart scheme.
According to the centralized stand-by power supply input coefficient of the main website of the invention described above, can solve prepared auto restart problem between 2 stations that become under the mode of connection of 3 lines as shown in Figure 3.Promptly under the operational mode of circuit L2 as the stand-by power supply circuit of third transformer station, define by rational prepared auto restart mode, if this moment, the L1 dead electricity caused transformer station's second dead electricity and circuit L3 and third transformer station normally to be moved, this moment system can detect second substation bus bar dead electricity and and stand-by power supply third transformer station charged, can automatically switch to by circuit L2 and power by disconnecting DL2, the DL4 that closes.
According to centralized automatic closing system of the main website of the invention described above, can also solve the automatic closing problem under the T mode of connection as shown in Figure 4 simultaneously.The new 35KV of the change outlet of 220KV north, 220KV pool head become the 35KV outlet and connect pattern to the change power supply of 35KV spring Shen by T.Under normal circumstances, 1DL and 2DL are in closing position, and 3DL disconnects, and the Shen change of spring this moment newly becomes the 35KV bussed supply by north, and 3DL is in heat and is equipped with state.Under this operational mode, can determine that the fault zone is not on the T link this moment if the spring Shen becomes the female dead electricity of I, pool head in a disguised form answers the 35KV bus to possess power supply capacity simultaneously, standby power system can automatic disconnection 2DL so, the 3DL that closes then, the spring Shen became to change by pool head and became the 35KV bussed supply this moment.
In addition, centralized automatic closing system of main website of the present invention, it can also be reserved resources as backup auto-activating device in the station, move with open loop approach, prepared auto restart in existing station since in a variety of causes tripping or the station backup auto-activating device owing to a variety of causes when withdrawing from temporarily, at this moment, the centralized stand-by power supply input coefficient of main website of the present invention can be used as the reserve mode and moves, and plays the reserve effect.Backup auto-activating device has moved and has successfully restored electricity in the station, because the centralized stand-by power supply input coefficient of main website of the present invention can be discerned measurement transition, therefore, even receive remote signalling displacement information and judge that topological dead electricity malfunction can not take place yet.When the prepared auto restart condition meets and when backup auto-activating device did not move in standing, the centralized prepared auto restart mode of main website can be moved and initiate a message, Systems Operator or dispatcher can determine whether to carry out remote control in the manual intervention mode.
In yet another aspect, can also utilize centralized automatic closing system of main website of the present invention to verify the reasonability of backup auto-activating device action in the station, after backup auto-activating device moves successfully in the station, the prepared auto restart control of corresponding system of the present invention also should listen to a series of network message and start analysis this moment, but do not form final sequence remote control, by the comparison of this part information, help analyzing and confirming the reasonability of backup auto-activating device action in the station.
In addition, centralized automatic closing system of main website of the present invention can also take many measures to guarantee the security reliability of series of operations under various states (closed loop or semiclosed loop), prevent misoperation, for example: operation must just can be carried out from the work station of the limit that is possessed of control power; The operator must have corresponding operating right; All there is corresponding prompt each step initial during operation, and the result in each step has corresponding response; Different operating to same equipment is under an embargo; The different operating station is under an embargo to the situation of same operation of equipment; Operation conditions to passage during operation monitors; The variation of monitoring network in the operation implementation; Can a distant place or local set device forbid that control lists; Detailed log file recording operation personnel name, operand, content of operation, operating time, operating result etc. are provided, can be for having access to and printing or the like.
Above-described embodiment of the present invention only is the explanation to preferred forms of the present invention, does not constitute the qualification to protection range of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (10)
1. the centralized automatic closing method of main website is characterized in that, comprises step:
Monitor the remote signalling displacement information of EMS system, when listening to the remote signalling displacement information of EMS system, obtain topological model information and mode data section in real time, carry out the network topology analysis, judge whether the equipment that has defined prepared auto restart exists topological dead electricity;
If there is topological dead electricity, judge whether truly decompression of bus;
If the true decompression of bus, in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart;
If not locking prepared auto restart, the prepared auto restart scheme that is adopted is determined in screening.
2. the centralized automatic closing method of main website according to claim 1 is characterized in that, also comprises step: carry out the sequence action of described prepared auto restart scheme correspondence.
3. the centralized automatic closing method of main website according to claim 1 and 2 is characterized in that, described judge bus whether the mode of true decompression comprise:
Whether judgment device transition occurs measuring, if then judge the true decompression of the corresponding bus of this equipment.
4. the centralized automatic closing method of main website according to claim 3 is characterized in that, the mode whether described judgment device transition occurs measuring comprises:
Whether the measuring point that judges whether default number remote measurement transition occurs, if then transition appears measuring in determining apparatus;
The mode whether described decision content measuring point remote measurement transition occurs comprises: when the ratio value of the current measuring value of this measuring point and the measured value before the Preset Time section reaches this measuring point corresponding preset threshold value, judge that remote measurement transition appears in this measuring point.
5. the centralized automatic closing method of main website according to claim 4 is characterized in that:
Described current measuring value is the measuring value that the delay time section is obtained of having delayed time;
And/or
Described measuring point comprises that bus line voltage, phase voltage, circuit are meritorious, circuit is idle, line current, Transformer Winding is meritorious, Transformer Winding is idle, any one or combination in any in the Transformer Winding electric current.
6. according to the centralized automatic closing method of any described main website of claim 1 to 5, it is characterized in that, after listening to the remote signalling displacement information of EMS system, obtain before topological model information and the mode data section in real time, also comprise step:
Judge whether to exist the safety and stability control device action message,, enter the described step of obtaining topological model information and mode data section in real time if do not have.
7. centralized automatic closing system of main website comprises:
The network monitoring module is used to monitor the remote signalling displacement information of EMS system;
Model and mode data processing module are used for obtaining topological model information and mode data section in real time when described network monitoring module listens to the remote signalling displacement information of EMS system;
The network topology analysis module is used for carrying out the network topology analysis according to topological model information and mode data section that described model and mode data processing module obtain, judges whether the equipment that has defined prepared auto restart exists topological dead electricity;
Whether truly the decompression determination module is used for when described network topology analysis module judges that there is topological dead electricity in the equipment that has defined prepared auto restart, judge bus decompression;
Lock modules is used for when described decompression determination module is judged the true decompression of bus, and in conjunction with the information of EMS system, whether judgment device the locking prepared auto restart;
Prepared auto restart option screening module is used for when described lock modules is judged non-latching prepared auto restart, and the prepared auto restart scheme that is adopted is determined in screening.
8. centralized automatic closing system of main website according to claim 7 is characterized in that:
Described decompression determination module comprises: the metric data processing module is used for judgment device and transition whether occurs measuring;
When described metric data processing module determining apparatus occurred measuring transition, described decompression determination module was judged the true decompression of this equipment corresponding bus lines.
9. according to claim 7 or centralized automatic closing system of 8 described main websites, it is characterized in that:
Also comprise: the action message module is used for judging whether to exist the safety and stability control device action message when described network monitoring module listens to the remote signalling displacement information of EMS system;
When there are not the safety and stability control device action message in described model and mode data processing module in described action message module judgement, obtain topological model information and mode data section.
10. according to claim 7 or centralized automatic closing system of 8 described main websites, it is characterized in that, also comprise:
Sequence straighforward operation module is used for remote control SCADA system and carries out described prepared auto restart scheme.
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| CN 201010237206 CN101917063A (en) | 2010-07-23 | 2010-07-23 | Method and system for automatically switching master station-centralized spare power source |
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| CN102075005A (en) * | 2011-01-18 | 2011-05-25 | 广东电网公司电力科学研究院 | Processing method for 110KV zone automatic standby power switching action on basis of EMS (Engine Management System) system |
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| CN105515203A (en) * | 2016-01-27 | 2016-04-20 | 国网山东无棣县供电公司 | Early-warning and control system between main substation and slave station |
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| CN102075005B (en) * | 2011-01-18 | 2012-10-03 | 广东电网公司电力科学研究院 | Processing method for 110KV zone automatic standby power switching action on basis of EMS (Engine Management System) system |
| CN102075005A (en) * | 2011-01-18 | 2011-05-25 | 广东电网公司电力科学研究院 | Processing method for 110KV zone automatic standby power switching action on basis of EMS (Engine Management System) system |
| CN102185372A (en) * | 2011-05-16 | 2011-09-14 | 广东电网公司深圳供电局 | Method and device for generating backup automatic switchover control model based on EMS (energy management system) |
| CN102185372B (en) * | 2011-05-16 | 2014-02-26 | 广东电网公司深圳供电局 | Method and device for generating backup automatic switchover control model based on EMS (energy management system) |
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| CN105914866A (en) * | 2016-05-12 | 2016-08-31 | 国电南瑞科技股份有限公司 | Method of using topological information in network spare power switching |
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| CN112182816A (en) * | 2020-09-22 | 2021-01-05 | 国网福建省电力有限公司龙岩供电公司 | Method for preventing misoperation in online mode in accident voltage loss region of 35 kV-110 kV power grid |
| CN112182816B (en) * | 2020-09-22 | 2023-02-28 | 国网福建省电力有限公司龙岩供电公司 | Method for preventing misoperation in online mode in accident voltage loss region of 35 kV-110 kV power grid |
| CN113743764A (en) * | 2021-08-26 | 2021-12-03 | 贵州电网有限责任公司 | Spare power automatic switching action judgment method for dispatching master station |
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| CN113922370A (en) * | 2021-10-12 | 2022-01-11 | 国网山东省电力公司淄博供电公司 | Automatic switching method of network standby power supply based on intelligent regulation and control system |
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