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With more HVDC inverters are located in close proximity, the complicated interaction between each inverter is inevitable. Besides the electrical topology of AC grid connected with inverters, the regulators of DC systems also play a very important role during the dynamic procedure. The conventional index of MIIF presented by CIGRE lacks the consideration of dynamic control in HVDC systems. In this...
Aiming at the demand of marine environment observation and realizing AUV industrialization, A portable autonomous observation system (PAOS) was built by Shenyang Institute of Automation. In 2013, Lake trial, sea trial and the standard sea trial was conducted. This paper describes system components, control system design of the PAOS, trial process and test result.
In order to ensure the belt conveyor operation reliable and safe, centralized monitoring and control is very necessary. This paper takes the belt conveyor for coal mine as the background, designs the monitoring system based on PLC technology. The system is composed of PLC and touch screen. It is used to control the machine and display running information real-time. The hardware and software of the...
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