CN108631288B - Arc suppression coil joint debugging control method, device and system - Google Patents
Arc suppression coil joint debugging control method, device and system Download PDFInfo
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- CN108631288B CN108631288B CN201810235923.3A CN201810235923A CN108631288B CN 108631288 B CN108631288 B CN 108631288B CN 201810235923 A CN201810235923 A CN 201810235923A CN 108631288 B CN108631288 B CN 108631288B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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Abstract
The invention relates to the technical field of power system automation, and particularly discloses an arc suppression coil joint debugging control method, which comprises the following steps: obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form; writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller; acquiring position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus; calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus; and the joint debugging controller controls the working mode of each arc suppression coil. The invention also discloses a device and a system for controlling the arc suppression coil joint debugging. The arc suppression coil joint debugging control method provided by the invention avoids the generation of a complex electric loop, and is simple to operate and wide in applicability.
Description
Technical Field
The invention relates to the technical field of power system automation, in particular to an arc suppression coil joint debugging control method, an arc suppression coil joint debugging control device and an arc suppression coil joint debugging control system comprising the same.
Background
In a small current grounding system, an arc suppression coil can compensate inductive current to reduce grounding current after a single-phase grounding fault occurs in a power grid. The existing arc suppression coil tuning modes mainly comprise a pre-tuning mode and a random tuning mode. When the system normally operates, the pre-adjusting arc suppression coil is put into the arc suppression coil with the capacity corresponding to the system operation mode, series resonance is prevented through the series or parallel damping resistor, and the arc suppression coil can be put into the system in zero delay when the system is short-circuited. When the system is in short circuit, the arc suppression coil is adjusted to a corresponding position.
With the popularization of a single bus multi-section wiring mode, the condition that a plurality of arc suppression coils are connected in parallel to operate inevitably exists. When a plurality of arc suppression coils are operated in parallel, the matching joint adjustment is needed according to the operation mode of the system. Master-slave parallel connection is the most common parallel operation mode of arc suppression coils. The secondary arc suppression coil adopts a preset control mode, and when the system has a short-circuit fault, the secondary arc suppression coil is put into the full-capacity arc suppression coil in zero time delay; and the main regulation arc suppression coil compensates the shortage according to the zero sequence current value after the auxiliary regulation arc suppression coil is put into use.
The existing arc suppression coil joint debugging is mainly realized by connecting all section switches and auxiliary nodes of a main transformer low-voltage side switch in series and parallel, the wiring is complex, a large amount of cables need to be consumed, when a main wiring is changed due to reconstruction and extension of a transformer substation, a loop needs to be redesigned, the wiring is modified, and certain safety risk is brought.
Therefore, how to provide an arc suppression coil control mode can be applied to various main wiring modes.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides an arc suppression coil joint debugging control method, an arc suppression coil joint debugging control device and an arc suppression coil joint debugging control system comprising the arc suppression coil joint debugging control device, so as to solve the problems in the prior art.
As a first aspect of the present invention, there is provided a method for controlling arc suppression coil simultaneous tuning, the method comprising:
obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller;
acquiring position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus;
calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus;
and the joint debugging controller controls the working mode of each arc suppression coil.
Preferably, the joint debugging controller adopts an automatic tracking substation operation mode.
Preferably, the main wiring form of the transformer substation comprises that two main transformer low-voltage sides are provided with double branches, and the low-voltage sides are configured according to a perspective mode and adopt single-bus six-section annular wiring.
As a second aspect of the present invention, there is provided an arc suppression coil simultaneous adjustment control device, comprising:
the logic control program design module is used for obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
the writing module is used for writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller;
the acquisition module is used for acquiring position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus;
the calculation module is used for calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus;
and the joint debugging controller is used for controlling the working mode of each arc suppression coil.
As a third aspect of the present invention, an arc suppression coil joint debugging control system is provided, wherein the arc suppression coil joint debugging control system includes a communication interface and the arc suppression coil joint debugging control device described above, an acquisition module in the arc suppression coil joint debugging control device can be connected with a monitoring system in a communication manner through the communication interface, and the acquisition module acquires position signals of all branch circuit breakers on a low-voltage side of a main transformer and position signals of all section switches on a low-voltage side bus from the monitoring system through the communication interface.
Preferably, the arc suppression coil joint debugging control system further comprises a program writing interface, and the program writing interface is connected with a writing module of the arc suppression coil joint debugging control device.
Preferably, the arc suppression coil joint debugging control system further comprises a control mode output port, and the control module output port is connected with a joint debugging controller of the arc suppression coil joint debugging control device.
Preferably, the arc suppression coil joint debugging control system further comprises a plurality of arc suppression coil controllers, and each arc suppression coil controller is connected with the output port of the control module.
Preferably, the arc suppression coil joint debugging control system further comprises a power interface, and the power interface is connected with the arc suppression coil joint debugging control device.
According to the arc suppression coil joint debugging control method provided by the invention, the control mode of the arc suppression coil is programmed, so that the generation of a complex electric loop is avoided, and a series of problems caused by complicated wiring are also avoided. The arc suppression coil joint debugging control method provided by the invention is simple to operate, has wide applicability and is suitable for all possible operation modes. For different transformer substations and different main wiring forms in the construction period of the transformer substations, control logic updating can be completed only by simple program writing, the safety problems of shutdown equipment and operators caused by wiring change are avoided, stable operation of a system is facilitated, the popularization and application difficulty is low, and safe and stable operation of the transformer substations is guaranteed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flow chart of a method for controlling arc suppression coil joint debugging provided by the invention.
FIG. 2 is a main wiring diagram of an embodiment of the present invention.
Fig. 3 shows all the operation modes of the substation and the arc suppression coil joint regulation mode in the operation modes.
Fig. 4 is a diagram showing a #2 arc suppression coil control mode according to the present invention.
Fig. 5 is a diagram showing a #3 arc suppression coil control mode according to the present invention.
Fig. 6 is a schematic structural diagram of an arc suppression coil joint regulation control device provided by the invention.
Fig. 7 is a schematic structural diagram of an arc suppression coil joint regulation control system provided by the invention.
Fig. 8 is a schematic structural diagram of a specific embodiment of the arc suppression coil joint debugging control system provided by the invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
As a first aspect of the present invention, there is provided a method for controlling arc suppression coil simultaneous tuning, the method comprising, as shown in fig. 1:
s110, obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
s120, writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller;
s130, collecting position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus;
s140, calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus;
and S150, the joint debugging controller controls the working mode of each arc suppression coil.
According to the arc suppression coil joint debugging control method provided by the invention, the control mode of the arc suppression coil is programmed, so that the generation of a complex electric loop is avoided, and a series of problems caused by complicated wiring are also avoided. The arc suppression coil joint debugging control method provided by the invention is simple to operate, has wide applicability and is suitable for all possible operation modes. For different transformer substations and different main wiring forms in the construction period of the transformer substations, control logic updating can be completed only by simple program writing, the safety problems of shutdown equipment and operators caused by wiring change are avoided, stable operation of a system is facilitated, the popularization and application difficulty is low, and safe and stable operation of the transformer substations is guaranteed.
It can be understood that all possible operation modes can be automatically judged according to the main connection mode, the arc suppression coil joint debugging control requirement under each operation mode is further determined, and a logic control program suitable for all the operation modes of the main connection mode is designed with the aim of minimizing the switching times of the operation modes of the arc suppression coil.
Specifically, the joint debugging controller adopts an automatic tracking transformer substation operation mode.
Specifically, the main wiring form of the transformer substation comprises that two main transformer low-voltage sides are provided with double branches, and the low-voltage sides are configured according to a perspective view and adopt single-bus six-section annular wiring.
As a specific implementation manner, the working process of the arc suppression coil joint regulation control method provided by the present invention is described in detail by taking the main connection shown in fig. 2 as an example.
The main wiring mode shown in fig. 2 includes that two main transformer low-voltage sides both have double branches, a single-bus six-segment ring wiring is adopted in a low-voltage side long view, because of more loads, the low-voltage side is configured according to the long view, and because the load value is not large, a #3 main transformer is temporarily not on, hard lap joints are adopted between a low-voltage side III-section bus and an IV-section bus, and between a V-section bus and a VI-section bus, for load distribution balance, a second branch of the #2 main transformer low-voltage side is temporarily connected on the V-section bus, arc suppression coils #1, #2, #3 are respectively connected on the I-section bus, the IV-section bus and the VI-section bus, and the wiring form is common in a.
The 4 subsumps, 3 sectionalizers give the substation 18 operating modes (extreme cases considered). Fig. 3 shows all operating modes of the substation and the arc suppression coil joint regulation mode in the operating mode.
The arc suppression coils #1, #2 and #3 need to be adjusted together in the operation mode marked as ①, the arc suppression coils #2 and #3 need to be adjusted together in the operation mode marked as ②, the arc suppression coils #1 and #3 need to be adjusted together in the operation mode marked as ③, and the arc suppression coils #1 and #2 need to be adjusted together in the operation mode marked as ④.
Determining according to the number of the operation modes: when the #1 arc suppression coils, #2 arc suppression coils and #3 arc suppression coils are jointly adjusted, the #1 arc suppression coil works in a master adjustment mode, the #2 arc suppression coil works in a slave adjustment mode, and the #3 arc suppression coil works in a slave adjustment mode; when the arc suppression coils #2 and #3 are jointly adjusted, the arc suppression coils #2 are adjusted in a master mode and the arc suppression coils #3 are adjusted in a slave mode; when the arc suppression coils #1 and #3 are jointly adjusted, the arc suppression coils #1 are adjusted in a master mode and #3 are adjusted in a slave mode; when the arc suppression coils #1 and #2 are adjusted together, the arc suppression coils #1 are adjusted in a master mode and #2 are adjusted in a slave mode.
The control mode can ensure that the switching frequency of the working mode of the arc suppression coil is minimum, and different control modes can be adopted according to different control principles of different arc suppression coil manufacturers in actual engineering. In the control mode described above, #1 arc suppression is always operated in the master mode, and #2 and #3 arc suppression coil control modes are shown in fig. 4 and 5.
As can be seen from fig. 4, when #2 arc suppression coil satisfies one of the following two conditions, it operates in the master mode, and otherwise it operates in the slave mode: (1) #2 Main Transformer Low Voltage side branch is all switched on or IV-V section switch is switched on, and I-VI section switch is in the state of switching off; (2) the I-VI section switch is switched on, the IV-V section switch is switched off, and the low-voltage side branch of the #2 main transformer is provided with one branch and only one branch is switched on.
As can be seen from fig. 5, the condition for the #3 arc suppression coil to operate in the main tuning mode is as follows: and #1, the double branches on the low-voltage side of the main transformer are all switched on, the II-III section switch is switched on, and the I-VI section switch and the IV-V section switch are both in a switching-off state. In other cases, the #3 arc suppression coil is operated in the slave mode.
And writing the logical relations of the figures 4 and 5 into the arc suppression coil joint debugging controller, and opening the results into the #2 and #3 arc suppression coil controllers through the control mode opening end, so that the arc suppression coil joint debugging control applicable to all 18 operation conditions of the transformer substation can be completed.
As a second aspect of the present invention, there is provided an arc suppression coil simultaneous adjustment control device 100, as shown in fig. 6, including:
the logic control program design module 110 is used for obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
a writing module 120, wherein the writing module 120 is configured to write the logic control program matched with the main wiring form of the current substation into the joint debugging controller;
the acquisition module 130 is used for acquiring position signals of all branch circuit breakers at the low-voltage side of the main transformer and position signals of all section switches of a low-voltage side bus;
the calculation module 140 is configured to calculate a control state of each arc suppression coil according to the position signals of all the branch circuit breakers on the low-voltage side of the main transformer and the position signals of all the section switches on the low-voltage side bus;
and a joint debugging controller 150, wherein the joint debugging controller 150 is used for controlling the working mode of each arc suppression coil.
The arc suppression coil joint debugging control device provided by the invention avoids the generation of a complex electric loop by programming the control mode of the arc suppression coil, and simultaneously avoids a series of problems caused by complicated wiring. The arc suppression coil joint debugging control device provided by the invention is simple to operate, has wide applicability and is suitable for all possible operation modes. Different main wiring forms in different transformer substations and transformer substation construction periods can be completed only by writing in through simple programs, the safety problems of shutdown equipment and operators caused by wiring change are avoided, stable operation of a system is facilitated, the popularization and application difficulty is low, and safe and stable operation of the transformer substations is guaranteed.
It can be understood that the logic control program design module can automatically judge all possible operation modes according to the main wiring form, further determine the arc suppression coil joint debugging control requirements under each operation mode, and design the logic control programs suitable for all the operation modes of the main wiring form by taking the minimum switching times of the operation modes of the arc suppression coil as the target.
As a third aspect of the present invention, there is provided an arc suppression coil joint debugging control system, wherein, as shown in fig. 7, the arc suppression coil joint debugging control system 10 includes a communication interface 200 and the arc suppression coil joint debugging control device 100 described above, an acquisition module in the arc suppression coil joint debugging control device 100 is capable of being connected to a monitoring system 20 through the communication interface 200 in a communication manner, and the acquisition module acquires position signals of all branch circuit breakers on a main transformer low-voltage side and position signals of all section switches on a low-voltage side bus from the monitoring system 20 through the communication interface.
The arc suppression coil joint debugging control system provided by the invention avoids the generation of a complex electric loop by programming the control mode of the arc suppression coil, and simultaneously avoids a series of problems caused by complicated wiring. The arc suppression coil joint debugging control system provided by the invention is simple to operate, has wide applicability and is suitable for all possible operation modes. Different main wiring forms in different transformer substations and transformer substation construction periods can be completed only by writing in through simple programs, the safety problems of shutdown equipment and operators caused by wiring change are avoided, stable operation of a system is facilitated, the popularization and application difficulty is low, and safe and stable operation of the transformer substations is guaranteed.
Specifically, as shown in fig. 8, the arc suppression coil simultaneous control system 10 further includes a program writing interface 300, and the program writing interface 300 is connected to a writing module of the arc suppression coil simultaneous control apparatus 100.
Specifically, the arc suppression coil joint debugging control system 10 further includes a control mode output port 400, and the control module output port 400 is connected to the joint debugging controller of the arc suppression coil joint debugging control device 100.
More specifically, the arc suppression coil joint regulation control system 10 further includes a plurality of arc suppression coil controllers 600, and each arc suppression coil controller 600 is connected to the control module output port 400.
Specifically, the arc suppression coil joint debugging control system 10 further includes a power interface 500, and the power interface 500 is connected to the arc suppression coil joint debugging control device 100.
In the arc suppression coil joint debugging control system provided by the invention, the arc suppression coil joint debugging control device can automatically track the operation mode of a transformer substation, acquires the state of a corresponding switch from the monitoring device, judges the master debugging mode or the slave debugging mode of the arc suppression coil according to the position of the switch, and inputs a signal to a corresponding arc suppression coil controller through the output end of the control mode. Different wiring forms exist in the construction period of the transformer substation, the operation modes are flexible and diverse under the same wiring form, and the arc suppression coil needs to be switched to a corresponding working mode when the working condition is changed. Through a digital form, the control condition of the arc suppression coil is programmed, and the generation of a complex electric loop is avoided. When the control conditions are changed due to the reconstruction and the extension of the transformer substation, only corresponding programs need to be written, the wiring is prevented from being changed, the power failure is avoided, and meanwhile, the safety of power grid operation maintenance personnel is guaranteed.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A method for controlling the joint debugging of arc suppression coils is characterized by comprising the following steps:
obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller;
acquiring position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus;
calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus;
the joint debugging controller controls the working mode of each arc suppression coil;
the main wiring form of the transformer substation comprises that two main transformer low-voltage sides are provided with double branches, and the low-voltage sides are configured according to a long-distance view and adopt single-bus six-section annular wiring.
2. The arc suppression coil joint debugging control method according to claim 1, wherein the joint debugging controller adopts an automatic tracking substation operation mode.
3. The utility model provides an arc suppression coil allies oneself with transfers controlling means which characterized in that, arc suppression coil allies oneself with transfers controlling means includes:
the logic control program design module is used for obtaining a logic control program matched with a main wiring form of the current transformer substation according to the main wiring form;
the writing module is used for writing the logic control program matched with the main wiring form of the current transformer substation into the joint debugging controller;
the acquisition module is used for acquiring position signals of all branch circuit breakers at the low-voltage side of a main transformer and position signals of all section switches of a low-voltage side bus;
the calculation module is used for calculating the control state of each arc suppression coil according to the position signals of all branch circuit breakers at the low-voltage side of the main transformer and the position signals of all section switches of a low-voltage side bus;
the joint debugging controller is used for controlling the working mode of each arc suppression coil;
the main wiring form of the transformer substation comprises that two main transformer low-voltage sides are provided with double branches, and the low-voltage sides are configured according to a long-distance view and adopt single-bus six-section annular wiring.
4. An arc suppression coil joint debugging control system, characterized in that, the arc suppression coil joint debugging control system includes communication interface and the arc suppression coil joint debugging controlling means of claim 3, the collection module in the arc suppression coil joint debugging controlling means can be through communication interface with monitored control system communication connection, the collection module is from the monitored control system through the communication interface gathers the position signal of all branch circuit breakers of main transformer low pressure side and the position signal of all section switches of low pressure side generating line.
5. The arc suppression coil joint debugging control system according to claim 4, further comprising a program writing interface connected to a writing module of the arc suppression coil joint debugging control device.
6. The arc suppression coil joint debugging control system of claim 4, further comprising a control mode output port connected to a joint debugging controller of the arc suppression coil joint debugging control device.
7. The crowbar coil gang adjustment control system of claim 6, further comprising a plurality of crowbar coil controllers, each of which is connected to the control mode output port.
8. The arc suppression coil joint debugging control system of claim 4, further comprising a power interface connected to the arc suppression coil joint debugging control device.
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| CN100423397C (en) * | 2005-10-12 | 2008-10-01 | 广西大学 | Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator |
| CN101453118B (en) * | 2007-11-29 | 2011-06-29 | 上海蓝瑞软件技术有限公司 | Distributed one control multiple automatic arc-suppression coil control apparatus |
| CN201549891U (en) * | 2009-11-26 | 2010-08-11 | 上海鹏起电气设备有限公司 | Automatic control and line selection device capable of simultaneously controlling three arc suppression coils |
| CN202103419U (en) * | 2011-04-13 | 2012-01-04 | 清华大学 | Device for uniformly controlling and selecting open circuits to distributed arc suppression coils of sectionalized busbars in substation |
| CN103199520B (en) * | 2013-04-01 | 2016-08-10 | 山东电力集团公司电力科学研究院 | The parallel Operation Control method of wind energy turbine set multiple stage arc suppression coil |
| CN204741271U (en) * | 2015-05-18 | 2015-11-04 | 中国矿业大学 | Arc suppressing coil united operation controlling means |
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Effective date of registration: 20231028 Address after: 214171 No. 18, Xichang Road, Huishan District, Wuxi City, Jiangsu Province Patentee after: WUXI GUANGYING ELECTRIC POWER DESIGN CO.,LTD. Address before: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12 Patentee before: STATE GRID JIANGSU ELECTRIC POWER CO., LTD. WUXI POWER SUPPLY Co. Patentee before: WUXI GUANGYING ELECTRIC POWER DESIGN CO.,LTD. |
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Application publication date: 20181009 Assignee: Wuxi Zhixing Electric Power Technology Co.,Ltd. Assignor: WUXI GUANGYING ELECTRIC POWER DESIGN CO.,LTD. Contract record no.: X2024980001533 Denomination of invention: A method, device, and system for arc suppression coil joint debugging control Granted publication date: 20200110 License type: Common License Record date: 20240129 Application publication date: 20181009 Assignee: Wuxi Jiushizheng Electrical Equipment Co.,Ltd. Assignor: WUXI GUANGYING ELECTRIC POWER DESIGN CO.,LTD. Contract record no.: X2024980001532 Denomination of invention: A method, device, and system for arc suppression coil joint debugging control Granted publication date: 20200110 License type: Common License Record date: 20240129 |