Multi-adaptive black-start apparatus

Abstract

The invention discloses a multi-adaptive black-start apparatus. The apparatus supports IEC61850, MODBUS, 104, and IEC61970 communication protocols, and solves the problem that systems under different protocols among different power plants in black start cannot be interconnected. The apparatus comprises a main control board, a communication board, an AD board, an input board, an output board and a man-machine interface. Under a normal condition, power grid data is read from an SCADA system; when a power plant system is in failure, the apparatus obtains the power grid data from the AD board; the output board controls the relay, so that the problem of black-start failure caused by other system faults is solved; the main control board is the logic processing center; the communication board is the core of the apparatus and external communication; the AD board is the hardware core for obtaining the power grid data of the system; the input board monitors the opening / closing states of the relay; the output board controls the opening / closing states of the relay; by adoption of the apparatus, the self-starting of the power plant under a condition of being disconnected from the power grid can be realized; and in addition, the apparatus can adapt multiple communication protocols and multiple onsite conditions, so that the economical efficiency, rapidness and stability of the power plant black start are improved.

Description

technical field [0001] The invention relates to the fields of communication and power generation, in particular to a black start device of a power plant. Background technique [0002] With the continuous development of grid interconnection and long-distance power transmission technology, large-capacity units, ultra-high voltage equipment, power electronic devices, and distributed generation technologies have been introduced into the power system in large quantities. The system is becoming more and more complex, and the operating conditions are more demanding and unpredictable, which greatly increases the risk of power disasters caused by partial failures. In the case of a large-scale power outage in the power grid, it is required to quickly restore the power supply. If the power supply cannot be restored in a short time, the national economy will suffer huge losses. [0003] Black Start (BlackStart) means that after the entire system is powered off due to a fault, without r...

AI Technical Summary

Problems solved by technology

[0005] At present, the topological structures of power plants in China are different, the degree of digitalization and intelligence of substations is different, and the communication protocols used by the equipment produced by each manufacturer are different. For example, the EMS system uses the IEC60870-5-104 protocol, the SCADA system uses the MODBUS protocol, and the smart substation Use the IEC61850 protocol, which makes the interconnection of various systems and equipment difficult

Images