The noise in substations has become one of the most concerning problems field power grid. In this paper, principle substation layout optimization based on maximum acoustic ray shielding method is established premise sound wave propagation rule complicated air medium to meet requirements relevant national environmental standards for at boundary substation. By establishing simulation analysis mod...

Abstract The intelligent delivery robot for substation maintenance is a kind of equipment power system, which can assist or even replace the artificial to carry in substation. It has important theoretical significance and practical application value automation operation management Substation autonomous navigation motion control key promote its application, based on this, this paper proposes veh...

The article presents the transients analysis of the substation grounding systems and transmission line tower footing resistances which can affect to the back-flashover (BF) or overvoltage across insulator chain in an HV power systems by using EMTP-RV software. The related transient modeling of the grounding systems is based on a transmission line (TL) model with considering the soil ionization....

Aiming at the different sampling rates of multiple sensors for the real-time detection system of heat faults in high-voltage equipment in substation, the step by step prediction fusion algorithm based on synchronous sampling data was used to rapidly calibrate the location of thermal faults. And a new method that using infrared thermal imager together with CCD (Charge Coupled Device) camera and ...

Tap changing operations of multiple transformers at a substation is a complex problem due to issues in controlling the parallel operations of the transformers involved, differences in manufacturer’s design and inaccuracy of the measures. In earlier work Artificial Neural Network (ANN) based tap changer controller has been developed to overcome these difficulties and improved results have been s...

Digital substations are mostly important in the future of the electric power industry which makes their testing a critical process to ensure the required reliability and security of the grid. The paper introduces the definition of a digital substation and efficient testing, as well as the requirements for isolation during testing. It later describes testing related features in IEC 61850 Edition...

In order to overcome the problem of flow collision of the integrative information transmission in the switched Ethernet for substation process-level (SESPL), this paper proposed a novel priority-based transfer scheme in the end-nodes based on the information model, in which different priorities are assigned according to different information types by using the user priority field defined in the...

Most critical infrastructure systems can be modeled as cyber-physical systems whose cyber components control the underlying physical components so as to optimize specified system objectives based on physical properties, physical constraints, and the current and estimated state of the system. Such systems usually require supports for security and performance guarantees: wrongly received or misse...

In order to solve the problems of the existing wide-area backup protection (WABP) algorithms, the paper proposes a novel WABP algorithm based on the distribution characteristics of fault component current and improved Dempster/Shafer (D-S) evidence theory. When a fault occurs, slave substations transmit to master station the amplitudes of fault component currents of transmission lines which are...

In substation automation system, the appropriate operation of protection, control and monitoring systems depends on connection network accuracy. One of the important topics in modern automation system is connection of primary equipment to automation system by serial network; this connection is named ‘process bus’. Generally the configuration of communication network is based on the required dat...