Modular intelligent controller and controlling method of low-voltage circuit breaker dedicated to wind power generation

Abstract

The invention discloses a modular intelligent controller and a controlling method of a low-voltage circuit breaker dedicated to wind power generation, wherein a processor and an extended memory are respectively connected with an Ethernet communication module, a fieldbus communication module, a wireless transceiving module, an electric energy calculating module, a simulation tripping module and an on and off controlling module; each module, the processor and the extended memory are respectively connected with a power module; the output end of the electric energy calculating module is connected with the simulation tripping module; and the output end of the simulation tripping module is connected with the on and off controlling module. The invention possesses the function of remoter wireless communication, short time delay protection and long time delay protection are performed according to the obtained current effective value; harmonic analysis is carried out according to the obtained current instantaneous value; the analysis on the quality of the generated electric energy is carried out according to the obtained voltage instantaneous value / effective value; the accumulated generated electric energy of the wind power generator is calculated according to the electric energy value; and the modular mode is adopted to satisfy the requirement of wind power generation.

Description

technical field [0001] The invention relates to an intelligent controller for a low-voltage circuit breaker, in particular to an intelligent controller for a low-voltage circuit breaker dedicated to a wind farm. Background technique [0002] With the promotion of wind power generation, its related low-voltage electrical appliances have also been developed rapidly. Wind farms are generally composed of about 100 to 200 wind turbines, covering an area of ​​up to several kilometers. According to the characteristics of wind power generation, in order to find and solve problems in time, in addition to the main functions of conventional low-voltage circuit breakers, low-voltage circuit breakers for wind power generation also need to have other functions that are necessary to adapt to the characteristics of wind power generation. [0003] The circuit breakers disclosed by the application number "200520076285.3" and the name "remote control device for vacuum circuit breaker" and the...

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Problems solved by technology

[0003] The circuit breakers disclosed by the application number "200520076285.3" and the name "remote control device for vacuum circuit breaker" and the application number "03210433.2" and the name "remote electric shock circuit breaker" have very short wireless remote control distances and are not applicable Applied to wind farms; the application number is "02131655.4" and the name is "circuit breaker remote control". Although the circuit breaker remote control disclosed can realize long-distance wireless communication, the actual construction cost is very high

In addition, the above wireless remote control content is to control the breaking of the circuit breaker, all of which are received by the circuit breaker, but there is no sending module on the circuit breaker, and the circuit breaker does not have the functions of sending information, electric energy measurement and harmonic detection

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