Wind power industry, the main controller for each wind turbine, used to collect data and state units, calculated, analyzed, calculated, analyze, judge and control the startup, shutdown, adjust to, such as a brake and turn pump series of control and protection actions of a single wind turbine can achieve full control, without human intervention. In addition In addition, the controller also has a data exchange with the host computer functions, so keep the upper function of the lower position to understand the operation of state and routine management of their control, in order to facilitate the management of wind farms.

PLC is mainly used and the cabin fan base, the respective changes from pulp and yaw control, under a control system. Between two PLC communicate via field bus. To PLC main control system consisting of hardware from the fan modules, the control room has enough space to ensure the safety and operation of measurement, PLC controllers via fiber optic cable link to the network protocol means of communication, set the host computer control, detection and management. Programming interface to the database.

2009 China wind generators Industry PLC application scale increased to 55 million yuan. And other OEM difference is that the application of PLC in the industry dominated by large and medium.

Siemens is a popular brand. Rockwell and Schneider, also have applied.

But now the wind power industry to private control is still the main controller, with professional companies their own development, such as Vestas; also have professional manufacturers of such products such as MITA, BACHANN, Beckhoff, GE and so on.

PLC application scale wind power generator industry highly dependent on the expansion of its dedicated controller alternative, but to replace the current dedicated PLC controller in the field are still considerable obstacles: 1, customer usage; 2, technical obstacles. PLC control in the movement with the special controller is still a certain distance, especially for high-power unit, the technology gap becomes more apparent. PLC Despite the advantages of low price, but for this emerging industry, the user cost less stressful, this advantage is not obvious.

Related Articals