[0020] Specific embodiments of the substation five-prevention logic rule self-generation method and the substation five-prevention logic rule self-generation system of the present invention will be described in detail below.
[0021] See figure 1 Shown is a schematic flow diagram of an embodiment of the method for self-generating five-prevention logic rules in a substation of the present invention, which includes the steps:
[0022] Step S101: Draw the primary wiring diagram of the equipment, and go to step S102;
[0023] Step S102: Parse the primary equipment main wiring diagram drawn above into multiple orderly primary equipment objects, and go to step S103;
[0024] Step S103: Automatically generate a five-prevention logic rule according to the preset generation principle determined by the five-prevention principle and the logical relationship between the ordered primary equipment objects.
[0025] According to the self-generating method of the five-prevention logic rule of the substation of the present invention, after the main wiring diagram of the primary equipment is drawn, the main wiring diagram of the primary equipment is parsed into a plurality of orderly primary equipment objects, so as The logical relationship between equipment objects and the preset generation principle determined by the five-defense principle can automatically generate the five-defense logic rule. The automatically generated five-defense logic rule is a theoretically correct five-defense logic rule. The five-prevention logic rule configuration is applied to the substation, which can effectively improve the reliability and safety of the substation.
[0026] Since the five-defense logic rule generated according to the above-mentioned method of the present invention is theoretically completely correct, the automatically generated five-defense logic rule may not be directly configured and applied to the substation, but the automatic The generated five-defense logic rules verify the artificially compiled five-defense logic rules. Because some artificially compiled five-defense logic rules take into account the actual engineering application, after verifying the correctness of the five-defense logic rules , Can further improve the reliability and safety of the substation. Therefore, after the above step S103, it further includes the following steps:
[0027] Step S104: The automatically generated five-defense logic rules are automatically compared with the five-defense logic rules to be detected, and the appropriate five-defense logic rules are selected according to the comparison results. The selected appropriate five-defense logic rules can be configured and applied To the substation.
[0028] The specific implementation process of the above steps will be described in detail below.
[0029] When drawing the main wiring diagram of the primary equipment, you can use VISIO, CAD and other software to achieve the drawing. However, considering that VISIO has strong support for the topology description of the graphics, the topology of the graphics is more convenient for secondary technical processing, so it is usually used VISIO realizes the drawing of the main wiring diagram of the primary equipment. When drawing, first use the VISIO software based on XML analysis technology to establish a relatively complete primary equipment graphic element library, which includes lines, switches, switches, transformers and other primary equipment graphic elements, and all forms of substation master Wiring diagrams can be realized through the "building blocks" type combination of these primary equipment primitives, so that a complete primary equipment main wiring diagram can be drawn. Each device graphic element of the main wiring diagram has a sufficiently descriptive mark, and each mark describes its attributes, location and other information, such as 1104 switch, which indicates the interval of the graphic element and the location of the device.
[0030] After drawing the main wiring diagram of the primary equipment, based on the characteristics of the VISIO graphics, the main wiring diagram can be parsed by XML into a system composed of many primary equipment. Since each graphic element is identified and named, it has the characteristics of identification naming. Therefore, a certain graphic element device can obtain the identification of a certain equipment graphic element adjacent to it. In fact, when drawing with VISIO, the association relationship between each device graphic element has been determined. For example, the circuit breaker device in a certain interval can determine the topological relationship of all grounding switches near the unit, and the specific analysis process will not be described in detail here.
[0031] After completing the above analysis of the main wiring diagram of the primary equipment, the five-prevention logic rules can be automatically generated based on the orderly primary equipment objects obtained after the analysis, combined with the preset generation principle determined by the five-prevention principle.
[0032] As mentioned above, after the above steps, a lot of graphic elements and logical relationships between graphic elements are generated, such as the link relationship between the 1101 switch and the 1104 switch, the positional relationship between a certain interval and an adjacent interval, and so on. Therefore, the five defense logic rules can be automatically generated on this basis.
[0033] As mentioned earlier, the "five preventions" mainly prevent accidentally entering the live compartment, accidentally closing the circuit breaker, closing the switch with load, closing the knife with electricity (hanging the ground wire) and closing the switch with the knife (ground wire), among them:
[0034] Regarding the energizing interval of stray entry: it is mainly guaranteed by the management of the substation. At present, it is mainly guaranteed by strict implementation of the operation ticket requirements;
[0035] For the wrong opening of the circuit breaker: one is the wrong choice, the other is the requirement to ensure the continuity of the system power supply, and the other is the user's operation and operation requirements. This method depends on the wishes of the operator, so there is no need to set up rules ;
[0036] For the switch with ground knife (ground wire): Generally, no conditions are configured at the site, mainly because when closing the switch on both sides of the switch, all related ground knives or temporary ground wires are already required to be disconnected, which means that The grounding switches or temporary ground wires in all directions from the beginning of the line extension of this switch are all disconnected (until other switches)". The control rules of the grounding switch or temporary grounding wire are determined and do not change with the change of the wiring method. Therefore, this rule only needs to press the identified "local switch". To "close", it is necessary to make the "grounding switches or temporary ground wires in all directions of the line extension" all in "off positions".
[0037] Therefore, the difficulty of analyzing the five-prevention logic rules is mainly concentrated on the "closed knife with electricity (ground wire)", "closed knife with load" and "closed circuit breaker by mistake".
[0038] By decomposing the above five prevention control principles, the following related rules that automatically generate the five prevention logic rules can be established:
[0039] 1. For grounding switch or temporary ground wire
[0040] Close the grounding switch or hook up the temporary ground wire: there must be disconnected switches in all directions of the line extension from the grounding point (the circuit breaker and the main transformer are regarded as short circuits);
[0041] Disconnect the grounding switch or remove the temporary ground wire: unconditional;
[0042] 2. For the knife gate
[0043] Closing the switch: the circuit switch must be disconnected, and the grounding switches or temporary ground wires in all directions from the current switch to the line extension are all disconnected (until other switches);
[0044] Splitting switch: This circuit switch must be disconnected.
[0045] Among them, when the direction of the power flow is fixed, the sequence of power transmission is to close the power switch first, then switch the load side switch, and finally close the switch; the power failure sequence is to switch off first, then the load side switch, and finally power off Side knife gate.
[0046] In addition, since it is generally specified that the bus side is the power supply side, the following description will take the bus side as the power supply side:
[0047] 1. For switches (circuit breakers), there may be different setting methods for different types of switches:
[0048] 1) For line switch
[0049] Closing the line switch: the line switch can be closed when the adjacent side switches are in the closed position or both are in the open position;
[0050] Sub-circuit switch: unconditional;
[0051] 2) For segment switch
[0052] Close section switch: the section switch can be closed when the adjacent side switches are all in the closed position or in the open position;
[0053] Subsection switch: When a certain section has a line switch in operation and the main transformer switch of this section is also in operation, the section switch can be divided; when a certain section of line switches are in a power failure state, the section switch can also be Minute;
[0054] 3) For bus tie switch
[0055] Close the bus tie switch: the bus tie switch can be closed when the adjacent side switches are in the closed position or both are in the off position;
[0056] Denominator bus tie switch: When all busbar side switches on a bus bar without power supply are disconnected, that is, when all loads have been poured onto the other bus bar, the bus tie switch can be divided. When both bus bars have power supply , The bus tie switch can also be divided;
[0057] 4) For the main transformer switch
[0058] According to the general regulations, set the high-voltage side and the medium-voltage side as the incoming line (power side), and the low-voltage side as the outgoing side (load side).
[0059] Main transformer power failure sequence: first turn off the low-voltage side main transformer switch, and then turn off the medium-voltage side or high-voltage side main transformer switch;
[0060] Main transformer power transmission sequence: first turn on the high-voltage side or medium-voltage side main transformer switch, and then turn on the low-voltage side main transformer switch;
[0061] Among them, the opening and closing sequence of the main transformer switch on the high-voltage side or the medium-voltage side is generally not required; when the low-voltage outlet does not lose power, it should be ensured that there is a high and medium-voltage power supply for the low-voltage power supply; when operating the main transformer switch on the high-voltage side, ensure that the main transformer is in the middle Sexuality is in position.
[0062] Close the main transformer switch: the main transformer switch can be closed when the adjacent side switches are in closed position or both in position;
[0063] Sub-main transformer switch:
[0064] When there is a power outage in a non-full station, when one main transformer is out of power, ensure that the other main transformer is in operation and the low-voltage section switch should be in the closed position;
[0065] When the whole station is out of power, when the high-voltage main transformer switches are all off, it should be ensured that at least one medium-voltage main transformer switch is in operation; when the medium-voltage main transformer switches are all off, it should be ensured that at least one high-voltage main transformer switch is in operation .
[0066] According to the principle of automatically generating five-prevention logic rules, figure 2 The schematic diagram of the typical logic relationship of the 220kV (110kV) line (double bus segmented wiring mode) in, the following is the control blocking rule corresponding to the typical wiring diagram. in figure 2 In the schematic diagram of the 220kV (110kV) line (double bus segmented wiring method) shown in the diagram, 1M means 1M bus, 2M means 2M bus, DL means switch, 1G means 1M bus switch, 2G means 2M bus switch, 4G Represents the line switch, B0 represents the switch on the bus side ground knife, C0 represents the switch on the CT side ground knife, and 40 represents the line ground knife.
[0067] The main rules are:
[0068] Closing the switch: the circuit switch must be disconnected, and the grounding switches or temporary ground wires in all directions from the current switch to the line extension are all disconnected (until other switches);
[0069] Splitting switch: This circuit switch must be disconnected.
[0070] The five-defense logic rules set accordingly are:
[0071] 1. Line switch DL blocking logic: open and close unconditionally.
[0072] 2. 1G (or 2G) blocking logic of the side switch on the busbar:
[0073] Opening conditions (satisfy any of the following items a and b):
[0074] a. DL points for line switch, 2G (or 1G) points for bus side switch;
[0075] b. The busbar side switch 2G (or 1G) is closed, and the bus coupler (section) switch and its two sides switch are closed.
[0076] Closing conditions (satisfy any of the following items a and b):
[0077] a.1M (or 2M) all ground knife points, line switch and ground knife points on both sides, 2M (or 1M) knife points;
[0078] b. 2M (1M) switch is closed, the bus tie switch and its two sides are closed.
[0079] 3. 4G blocking logic of line switch:
[0080] Closing conditions: the line switch DL and its two sides are separated, and the outlet line is separated;
[0081] Opening conditions: line switch DL points.
[0082] 4. Grounding switch B0 (or C0) blocking logic on both sides of the switch:
[0083] Opening condition: None, that is, there is no constraint condition for opening;
[0084] Closing conditions: 1G, 2G, 4G switches on both sides of the outlet switch, when the closing conditions are met, B0 is closed or C0 is closed, or both are closed at the same time;
[0085] 5. Line ground knife 40 blocking logic:
[0086] Opening condition: None, that is, there is no constraint condition for opening;
[0087] Closing conditions: 4G points for outgoing line switch.
[0088] According to the above-mentioned logic of ten five-defense logic rules from 1 to 5 (including closing and opening), each graphic element device object can be selected correspondingly, 10 rules are automatically formed, and a standardized description form, such as one The logic of the mother knife of the 220kV line is as follows (the graphic element device object represented by the number symbol in the subsequent description is described by a special naming rule in the prior art, which will not be described in detail here, and where = 0 Means points, = 1 means close):
[0089] 24833: "combined" knife logic
[0090] 2030=0, (24831=1, 20301=1, 24832=1, 20306=1, 2026=1, 20262=1, 20266=1), 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613=0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0091] What needs to be added here is that for special control rules, it can be carried out by writing the mode of curing rules. That is to say, for special rules caused by special and rare main wiring diagram methods, such rules can be collected and used as The fixed mode gradually forms a rule library suitable for various wiring diagram methods.
[0092] After obtaining the automatically generated five-defense logic rules according to the above method, you can use the five-defense logic rules to verify the manually written five-defense logic rules (also engraved as the five-defense logic rules to be tested). Compare this self-generated five-defense logic rule with the five-defense logic rule to be tested, that is, by directly comparing each rule, such as "24833: "combined" knife logic", that is, compare the two Rules (ie, self-generated five-defense logic rules, five-defense logic rules to be tested) rule descriptions are automatically split (that is, they are split into many smallest descriptions), for example, for the above "24833: "合" knife logic":
[0093] 2030=0, (24831=1, 20301=1, 24832=1, 20306=1, 2026=1, 20262=1, 20266=1), 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613=0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0094] It can be divided into the following 8:
[0095] 1)
[0096] 2030=0, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26013=0, 24883= 0, 24873=0, 22013=0, 22023=0, 24453=0!
[0097] 2)
[0098] 2030=0, 24831=1, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0099] 3)
[0100] 2030=0, 20301=1, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0101] 4)
[0102] 2030=0, 24832=1, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0103] 5)
[0104] 2030=0, 20306=1, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0105] 6)
[0106] 2030=0, 2026=1, 20303=1, 248340=0, 223J00=0, 223Y00=0, 24823=0, 26063=0, 24853=0, 26073=0, 24863=0, 26003=0, 26613= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0107] 7)
[0108] 2030=0,20262=1,20303=1,248340=0,223J00=0,223Y00=0,24823=0,26063=0,24853=0,26073=0,24863=0,26003=0,26013= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0109] 8)
[0110] 2030=0,20266=1,20303=1,248340=0,223J00=0,223Y00=0,24823=0,26063=0,24853=0,26073=0,24863=0,26003=0,26013= 0, 24883=0, 24873=0, 22013=0, 22023=0, 24453=0!
[0111] After the split, the descriptions after the split of the two rule bases can be polled and compared one by one, and the specific implementation can be achieved by setting the corresponding optimization program.
[0112] After completing this polling comparison, the five-defense logic rules to be tested that are different from the self-generated five-defense logic rules will be screened out, and the final five-defense logic rules with differences will be screened out for manual screening. Determine which five-defense logic rule to use. Among them, some of the differences are caused by the different strictness of the rules. For example, some of the five-defense logic rules written by manual experience are stricter than the theory. In this case, the manual rules are often preferred, and the manual five The anti-logic rule configuration is applied to the substation; but part of it is caused by real artificial "errors". At this time, it should be taken from the generated five-prevention logic rule, and the self-generated five-prevention logic rule configuration should be applied to the substation.
[0113] According to the above-mentioned self-generating method for substation five-prevention logic rules of the present invention, the present invention also provides a self-generating system for substation five-prevention logic rules, such as image 3 Shown is the structural schematic diagram of the self-generating system of five-prevention logic rules for substations of the present invention, which includes:
[0114] The main wiring diagram import module 301 is used to import the drawn primary equipment main wiring diagram;
[0115] The analysis module 302 connected to the main wiring diagram import module 301 is used to parse the imported primary equipment main wiring diagram into a plurality of orderly primary equipment objects;
[0116] The five-prevention rule automatic generation module 303 connected to the analysis module 302 is configured to automatically generate the five-prevention logic rule according to the preset generation principle determined by the five-prevention principle and the logical relationship between the ordered primary equipment objects.
[0117] According to the above-mentioned substation five-prevention logic rule self-generation system of the present invention, it imports the drawn primary equipment main wiring diagram through the main wiring diagram import module, and uses the analysis module to parse the primary equipment main wiring diagram into multiple orderly primary wiring diagrams. Device objects, so that the five-prevention rule automatic generation module can automatically generate five-prevention logic rules based on the logical relationship between these orderly primary equipment objects and the preset generation principle determined by the five-prevention principle. The anti-logic rule is a theoretically correct five-prevention logic rule. Applying the five-prevention logic rule configuration to the substation can effectively improve the reliability and safety of the substation.
[0118] Since the five-defense logic rule generated by the system of the present invention is theoretically completely correct, the automatically generated five-defense logic rule may not be directly configured and applied to the substation, but the automatic The generated five-defense logic rules verify the artificially compiled five-defense logic rules. Because some artificially compiled five-defense logic rules take into account the actual engineering application, after verifying the correctness of the five-defense logic rules , Can further improve the reliability and safety of the substation. Therefore, the above-mentioned system of the present invention may also include:
[0119] The five defense rule library import module 304 is used to import the five defense logic rules to be detected;
[0120] The comparison module 305 connected to the five-prevention rule automatic generation module 303 and the five-prevention rule library importing module 304 is used to automatically compare the automatically generated five-prevention logic rules with the five-prevention logic rules to be detected, according to the comparison As a result, choose the appropriate five defense logic rules.
[0121] After the comparison module completes the polling comparison, it will screen out the five-defense logic rules to be detected that are different from the self-generated five-defense logic rules, and the final five-defense logic rules that are filtered out can be provided for manual screening. To determine which five-defense logic rule to use. Among them, some of the differences are caused by the different strictness of the rules. For example, some of the five-defense logic rules written by manual experience are stricter than the theory. In this case, the manual rules are often preferred, and the manual five The anti-logic rule configuration is applied to the substation; but part of it is caused by real artificial "errors". At this time, it should be taken from the generated five-prevention logic rule, and the self-generated five-prevention logic rule configuration should be applied to the substation.
[0122] The analysis process of the main wiring diagram of the primary equipment, the self-generation process of the five-defense logic rules, and the comparison process in the system of the present invention are the same as those in the above-mentioned method of the present invention, and will not be repeated here.
[0123] Five prevention logic rule script errors are often problems in the actual construction of substation automation systems in our country. Debugging is very difficult, and even mistakes cannot be seen manually. The implementation of the above-mentioned method and system of the present invention is proposed for the first time, and no such method description or system has yet appeared, which provides a very good direction for solving the above-mentioned difficult problem of troubleshooting and solving engineering problems. In addition, the method of the present invention and the whole process of its system operation are relatively quick and convenient. Actual practice has proved that when drawing the main wiring diagram of the primary equipment, it takes about 20 minutes to 60 minutes depending on the scale of the substation. Since the subsequent rule comparison process is automatically processed by the program, the time can be ignored. Therefore, this method achieves quickness and convenience, and improves efficiency for solving engineering problems.
[0124] The embodiments of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
