Diesel power generation system applied to isolated sea island micro-grid

Abstract

The invention discloses a diesel power generation system applied to an isolated sea island microgrid. The diesel power generation system applied to the isolated sea island micro-grid comprises a controller, a monitoring system, a switch device and a protecting and monitoring device, wherein the controller integrates a grid connecting function, a machine connecting function, a multi-machine load distributing function, a unit quiescent load operation function, a generator power adjusting function, a data acquisition function, a display function and a remote communication function and adjusts the parameters of a speed controller and the parameters of a voltage regulator in a digital control mode, the monitoring system is used for monitoring the controller, a power system and an oil circuit system and displaying, the switch device comprises a remote communication interface and an electric operating mechanism, and the protecting and monitoring device comprises a remote communication interface and is used for conducting protection according to the state of a diesel generating unit. According to the diesel power generation system applied to the isolated sea island micro-grid, a communication protocol of the diesel power generation system is converted into a communication mode adaptable to the isolated sea island micro-grid through a protocol converting device, and information interaction is carried out between the diesel power generation system and the micro-grid through a data switching exchanger. Due to the fact that the diesel power generation system is obtained through the improvement of a traditional diesel power generation system in the power supply mode of the isolated sea island micro-grid, and cost and investment of micro-grid project construction are saved.

Description

technical field [0001] The present application relates to the technical field of electric power system, and more specifically, relates to a diesel power generation system applied to an isolated island microgrid. Background technique [0002] For a long time, due to the limitation of power energy supply, the development of the island has been severely restricted. For some remote islands, the current power supply method is mainly to ship oil from the mainland and use diesel engines to generate electricity. This power supply mode is likely to affect the ecological environment of the island, which is not conducive to the construction of an ecological island. At the same time, the transportation and storage of oil used on the island will increase the investment cost in the later period. [0003] Islands are rich in wind and solar resources, and microgrids are the most effective form of utilizing wind and solar resources. To develop a microgrid power supply mode on an isolated i...

AI Technical Summary

Problems solved by technology

The traditional diesel generator control system uses analog circuits to control the governor and voltage regulator. The diesel generator can only output a fixed voltage and frequency, which cannot meet the needs of the microgrid control center for different operating modes of the diesel generator.

(3) Low level of automation

Traditional diesel generators have no special requirements for communication, and each unit in the factory is only connected with each other through the field bus, and does not have the function of remote communication

(5) Problems with old switchgear and protection measurement and control devices

Diesel generator outlet circuit breakers, protection measurement and control devices, etc. do not have remote communication interfaces with the microgrid control center

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