CN114372175A - Automatic acceptance system based on specific time scale matching signal - Google Patents
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Abstract
The invention discloses an automatic acceptance system based on a specific time scale matching signal, which is used for automatically accepting a transformer substation and comprises a dispatching master station terminal, a checking comparison tool and a four-remote signal simulation module; the four-remote signal simulation module is used for simulating MMS service of the bay level measurement and control and protection device, communicating with the remote server and the monitoring background, modeling based on IEC61850 and a power grid general model description specification file, and realizing simulation of signal triggering of in-station protection measurement and control equipment by analyzing an SCD file of a transformer substation; the terminal system of the dispatching master station is designed based on a DL/T634.5104 protocol, supports the setting of 104 connection parameters and supports the 104 protocol requirements used in different regions, and supports the storage of master station signal receiving records after the signal receiving is finished; and the checking comparison tool checks the signals through the scheduling information table, the main station record table, the background record table and the operation record table. The invention can realize automatic signal acceptance of the transformer substation.
Description
Technical Field
The invention relates to an automatic acceptance system based on a specific time scale matching signal, which is used in the field of power system automation.
Background
At present, monitoring information checking and receiving work of a transformer substation is mainly carried out in a manual checking mode. The monitoring personnel need to check and accept each information one by one, the ideal situation is that the construction personnel generates signals at the station end, the monitoring personnel observes the change of the background monitoring picture and contacts with the working personnel at the main station end to confirm the change of the signals of the main station, and the accuracy of the information is verified by 5 links of the slave equipment (a protection or measurement and control device), the remote machine, the background monitoring system, the front main station and the monitoring picture of the main station in the whole process. Generally, a 110kV transformer substation has nearly 1000 pieces of remote signaling and remote measuring information, and under the condition of smoothness, manual acceptance requires 3-4 days, a 220kV transformer substation has 2000 pieces of remote signaling and remote measuring information, and manual acceptance requires 5-6 days.
However, the master station information needs to be carried out after the communication channels are communicated, usually about one week before the transformer substation is put into operation, or even shorter time, in order to ensure that the transformer substation is put into operation in time, the check personnel divide the check and acceptance of the in-station monitoring information and the check and acceptance of the master station information into two times, and because the transformer substation has the double-scheduling data network and the 101 channels, the monitoring information of each channel needs to be checked once, so that each signal needs to be checked for more than four times in practice, and the contradiction between the workload and the construction period is obvious. On the other hand, the monitoring information acceptance efficiency highly depends on the technical level of debugging personnel of an automatic manufacturer, a plurality of problems exist in newly-built transformer substations before acceptance, and the information acceptance work is basically intermittent, so that the actual use time is far longer than the standard time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an automatic acceptance system based on a specific time scale matching signal, and can realize automatic signal acceptance of a transformer substation.
One technical scheme for achieving the above purpose is as follows: an automatic acceptance system based on a specific time scale matching signal is used for automatically accepting a transformer substation, and comprises a dispatching master station terminal, a checking comparison tool and a four-remote signal simulation module;
the four-remote signal simulation module is used for simulating MMS service of the bay level measurement and control and protection device, communicating with the remote server and the monitoring background, modeling based on IEC61850 and a power grid general model description specification file, and realizing simulation of signal triggering of in-station protection measurement and control equipment by analyzing an SCD file of a transformer substation;
the terminal system of the dispatching master station is designed based on a DL/T634.5104 protocol, supports the setting of 104 connection parameters and supports the 104 protocol requirements used in different regions, and supports the storage of master station signal receiving records after the signal receiving is finished;
and the checking comparison tool checks the signals through the scheduling information table, the main station record table, the background record table and the operation record table.
Further, after the four-remote signal simulation module completes modeling, the system can generate a four-remote information base covering all protection measurement and control devices of the full-substation, and each signal of the four-remote information base has a unique Reference attribute; when the four-remote signal simulation module carries out signal trigger simulation, a signal with a unique specific time scale is generated according to a certain trigger sequence; the simulation module supports one-key triggering of a total station signal, and corresponding background records, master station records and operation record tables can be generated after triggering; and the checking comparison tool is matched with the scheduling point table according to each signal recording table with the unique specific time scale to finally form a total corresponding relation table, the corresponding relation table is sorted according to the point number sequence in the scheduling information table, and the system is used for automatically matching the background signal description, the SCD signal description and the SCD signal Reference in sequence according to the corresponding relation of the unique specific time scale and the scheduling point number.
Further, the system manually confirms the matching results of the background signal description, the SCD signal description and the SCD signal Reference which are automatically matched according to the corresponding relation of the unique specific time scale and the scheduling point number.
The monitoring information acceptance work of the transformer substation is mainly carried out in a manual checking mode. The transformer substation monitoring information automatic acceptance system developed aiming at the acceptance work of the transformer substation rarely exists or does not exist at home and abroad at present. Therefore, due to the use of the acceptance system, the problems of centralized engineering quantity, high working strength, more cooperation specialties, high work coordination quantity, heavy time tightening task, increased safety pressure and the like of the transformer substation monitoring information acceptance work are effectively solved, and the system has great significance for improving the acceptance work efficiency of the transformer substation. At present, many monitoring manufacturers develop simulation products of protection devices according to self test requirements, but the functions are single, and the simulation products are performed on a single protection device, so that few functions are available for simulating a total-station protection device, and the functions of automatically triggering simulation signals according to the sequence of a telecontrol forwarding table are needless to say. And foreign electric power industry is because the development strategy of heavy first time light second time, and the construction investment to secondary equipment is less, according to the foreign matter data analysis of searching from IEEE and EI, has not found similar automatic acceptance system of developing to signal access scheduling control system at present.
The automatic acceptance system based on the specific time scale matching signal can simulate the scheduling master station to realize the synchronization of the in-station monitoring and the master station information acceptance work before the communication link is not communicated; after the actual master station accesses, the signal can be automatically triggered to point with the master station. Therefore, the system can greatly improve the efficiency and the correctness of checking and accepting the monitoring information, reduce the labor and the repeated workload, adopt the automatic checking and accepting system to check and accept once quickly before the formal checking and accepting, can find and correct the problems existing in the monitoring information full loop in time, and ensure the successful development of the formal checking and accepting. The system has great improvement on the planning, the working efficiency and the safety in the construction process of the transformer substation, and has wide application prospect. Taking a 110kV transformer substation as an example, a general 110kV transformer substation has nearly 1000 pieces of remote signaling and remote measuring information, and under the condition of smoothness, the manual acceptance requires about 4 persons for 5 days; after the system is used, only 2 persons are needed for 2-4 days, and the working efficiency is at least 2 times.
Drawings
Fig. 1 is a functional flow diagram of an automatic acceptance system based on a specific time scale matching signal according to the present invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
the invention discloses an automatic acceptance system based on specific time scale matching signals, which is used for automatically accepting a transformer substation and comprises a dispatching master station terminal, a checking comparison tool and a four-remote signal simulation module.
The four-remote signal simulation module is used for simulating MMS service of the bay level measurement and control and protection device, communicating with the remote server and the monitoring background, modeling based on IEC61850 and a power grid general model description specification file, and analyzing the SCD file of the transformer substation to realize simulation of signal triggering of the in-station protection measurement and control device.
The terminal system of the dispatching master station is designed based on a DL/T634.5104 protocol, supports setting of 104 connection parameters and supports 104 protocol requirements used in different regions, and supports storage of master station signal receiving records after signal receiving is completed.
Before checking and comparing, four record tables are needed to be prepared, namely a scheduling information table, a main station record table, a background record table and an operation record table. The master station record list and the operation record list are the signal record list which is generated by the simulation module after triggering the signal and is received by the master station terminal. The record table is defined in cvs format. And the checking comparison tool checks the signals through the scheduling information table, the main station record table, the background record table and the operation record table.
After the four-remote signal simulation module completes modeling, the system generates a four-remote information base covering all protection measurement and control devices of the total station, and each signal of the four-remote information base has a unique Reference attribute. When the four-remote signal simulation module carries out signal trigger simulation, a signal with a unique specific time scale is generated according to a certain trigger sequence. The four-remote signal simulation module supports one-key triggering of the total station signal, and corresponding background records, master station records and operation record tables can be generated after triggering. And the checking comparison tool matches the scheduling point table according to each signal record table with the unique specific time scale to finally form a total corresponding relation table. The corresponding relation table is sorted according to the point number sequence in the scheduling information table, and the system can automatically match the background signal description, the SCD signal description and the SCD signal Reference in sequence according to the unique specific time scale and the corresponding relation of the scheduling point number. In order to ensure correctness, the matching result can be confirmed manually.
Please refer to fig. 1, which is a functional flow chart of the system.
The operation process comprises the following steps:
1. the four-remote signal simulation module is led into the SCD file of the transformer substation, the signal simulation can automatically analyze the SCD according to the modeling rule of the model file, and after the SCD is analyzed, the four-remote signal simulation module completes the establishment of the signal library.
2. And setting system communication parameters to complete the parameter setting of the dispatching master station terminal and the four-remote signal simulation module.
3. And the automatic acceptance check is accessed into a transformer substation network, networking communication is completed with the telecontrol equipment, and the construction of a system network is completed in the transformer substation.
4. The four-remote signal simulation module can be used for carrying out signal triggering simulation on each protection measurement and control device of the transformer substation, and can be used for carrying out total station signal simulation by one key or carrying out signal simulation one by one on equipment. And the triggered full remote signal generates corresponding record table information at the background and the master station terminal at the same time. Each remote signal carries a unique specific time stamp, which is indicative of the identity of the signal itself.
5. And automatically matching the signal of the scheduling forwarding table with the generated record table by using a checking comparison tool and a specific time scale unique to the signal. And forming a corresponding relation table of the scheduling signal and the SCD signal source.
6. And sequentially finishing point alignment according to the sequence of the scheduling forwarding table by using a point alignment menu of the simulation tool.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (3)
1. An automatic acceptance system based on specific time scale matching signals is used for automatically accepting a transformer substation, comprises a dispatching master station terminal and a checking comparison tool, and is characterized by further comprising a four-remote signal simulation module;
the four-remote signal simulation module is used for simulating MMS service of the bay level measurement and control and protection device, communicating with the remote server and the monitoring background, modeling based on IEC61850 and a power grid general model description specification file, and realizing simulation of signal triggering of in-station protection measurement and control equipment by analyzing an SCD file of a transformer substation;
the terminal system of the dispatching master station is designed based on a DL/T634.5104 protocol, supports the setting of 104 connection parameters and supports the 104 protocol requirements used in different regions, and supports the storage of master station signal receiving records after the signal receiving is finished;
and the checking comparison tool checks the signals through the scheduling information table, the main station record table, the background record table and the operation record table.
2. The automatic acceptance system based on the specific time scale matching signals of claim 1, wherein after the four-remote signal simulation module completes modeling, the system generates a four-remote information base covering all protection measurement and control devices of a full-substation, and each signal of the four-remote information base has a unique Reference attribute; when the four-remote signal simulation module carries out signal trigger simulation, a signal with a unique specific time scale is generated according to a certain trigger sequence; the simulation module supports one-key triggering of a total station signal, and corresponding background records, master station records and operation record tables can be generated after triggering; and the checking comparison tool is matched with the scheduling point table according to each signal recording table with the unique specific time scale to finally form a total corresponding relation table, the corresponding relation table is sorted according to the point number sequence in the scheduling information table, and the system is used for automatically matching the background signal description, the SCD signal description and the SCD signal Reference in sequence according to the corresponding relation of the unique specific time scale and the scheduling point number.
3. The automatic acceptance system based on the specific time scale matching signal of claim 1, wherein the system is characterized in that matching results of automatic matching of background signal description, SCD signal description and SCD signal Reference are confirmed manually according to the corresponding relation of the unique specific time scale and the scheduling point number.
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