Signal Stability Control for Industrial Control Network Connected with Power System Converter
A large number of synchronous converters exist in the Power supply industrial control network.When several different types of voltage type converters are used for signal transmission to the network,the connected equipment load disturbance leads to the DC bus voltage fluctuation,affecting the stability of the network signal.The traditional industrial control network stability control method controls the DC bus voltage of network equipment,which reduces the disturbance but at the expense of the normal voltage performance.This paper proposes weak nonlinear inverse control algorithm based on the large-scale industrial control network and stable power supply system of permanent magnet synchronous signal control method.At every time interval for the industrial control network control signal collection,non-flexure variable control model is established; real-time adjustment is made on the network side converter voltage signal according to the model calculation results.Through the analysis of converter frequency control,it calculates the output signal offset under the influence of the frequency,and compensates the offset error.The experimental results show that this method can be used to control the stability of the network signal output,ensuring the working stability of large industrial control network,and meeting the needs of industrial control.
industrial control networkpower supply systemcontrol method
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