Summary of the invention
For the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of real-time, and the distributed self-healing control method of the high distribution network of reliability.
In order to solve the problems of the technologies described above, the distributed self-healing control method of a kind of distribution network provided by the present invention is characterized in that:
In each distribution subnet of distribution network, lay a plurality of self-healing controls unit, a plurality of automation distribution terminals in the distribution subnet of corresponding place, each self-healing control unit, between per two electric adjacent self-healing control unit, all set up communication link, so that can intercom mutually between the electric adjacent self-healing control unit;
When distribution network suffers permanent fault, communicate by letter in each self-healing control unit first automation distribution terminal corresponding to each, obtain the fault current data of each corresponding automation distribution terminal, and then with electric adjacent self-healing control unit communication, obtain the fault current data of electric adjacent corresponding each automation distribution terminal in self-healing control unit, and then according to distribution network fault characteristic failure judgement point position, realize fault location;
After fault location was finished, the self-healing control unit that the fault point is relevant sent control command to each corresponding automation distribution terminal, so that the switch opens of fault point periphery realizes the isolation of fault zone;
After fault section isolation is finished, each self-healing control unit is to the interconnection switch in the fault zone or outlet breaker do not send the signal that restores electricity, make not that interconnection switch or the outlet breaker in the fault zone closes again, realize restoring electricity of non-fault zone.
The distributed self-healing control method of distribution network provided by the invention, adopt the distributed decision making method, for each distribution subnet, by the data that are distributed in on-the-spot self-healing control unit collection site automation distribution terminal, and mutually intercommunication, the self-healing control of autonomous realization distribution subnet, occur to fault section isolation, non-fault zone time of expending that restores electricity from fault very short, has very strong real-time, and reliability is also higher, even automation distribution main website goes wrong, also can not cause the self-healing control of whole distribution network to lose efficacy.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is described in further detail, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
The distributed self-healing control method of a kind of distribution network that the embodiment of the invention provides is characterized in that:
In each distribution subnet of distribution network, lay a plurality of self-healing controls unit, a plurality of automation distribution terminals in the distribution subnet of corresponding place, each self-healing control unit, between per two electric adjacent self-healing control unit, all set up communication link, so that can intercom mutually between the electric adjacent self-healing control unit;
When distribution network suffers permanent fault, communicate by letter in each self-healing control unit first automation distribution terminal corresponding to each, obtain the fault current data of each corresponding automation distribution terminal, and then with electric adjacent self-healing control unit communication, obtain the fault current data of electric adjacent corresponding each automation distribution terminal in self-healing control unit, and then according to distribution network fault characteristic failure judgement point position, realize fault location;
After fault location was finished, the self-healing control unit that the fault point is relevant sent control command to each corresponding automation distribution terminal, so that the switch opens of fault point periphery realizes the isolation of fault zone;
After fault section isolation is finished, each self-healing control unit is to the interconnection switch in the fault zone or outlet breaker do not send the signal that restores electricity, make not that interconnection switch or the outlet breaker in the fault zone closes again, realize restoring electricity of non-fault zone.
In the embodiment of the invention, the self-healing control unit realizes that according to the distribution network fault characteristic method of fault location is prior art.
In the embodiment of the invention, all disposing serial communication modular and/or network communication module in each self-healing control unit, realizes communicating by letter with the automation distribution terminal in the distribution subnet by serial communication modular and/or network communication module in each self-healing control unit.
In the embodiment of the invention, described self-healing control unit comprises self-healing control module, serial communication modular, network communication module, switching input module;
Described self-healing control module has adopted 32 arm processors and high-capacity FLASH storage chip, has guaranteed the real-time that system is good, reliability, stability;
Described serial communication modular is provided with 4 DB9 type serial data interfaces, and be built-in with the data-interface protective circuit, each data-interface is all supported RS232, RS422 and RS485, and the communication baud rate scope between the 256K baud, is used for accessing various serial ports type equipment at 300 bauds;
Described network communication module is provided with the 10M/100M self adaptation ethernet port of 2 RJ45 types, and each ethernet port is provided with independently IP address, is used for access diverse network type equipment, or is used for and automation distribution master station communication;
Each serial data interface and each ethernet port all are furnished with the transmitting-receiving LED light, are used for showing current communications status;
Described switching input module is provided with double switch amount input terminal, is used for access external control instruction.