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The real-time simulation is in demand to study the control strategies and the protection measures of isolated power systems, which are equipped with special components like 3/12-phase double winding generators to meet the AC and DC power supply demand simultaneously. But right now no power system real-time simulators offer the simulation models of these components, and hence it is compulsory to study...
This paper proposed a hierarchical model for smart substation fault diagnosis. This fault diagnosis system gets fault information from SCADA and fault information system. The information from SCADA, including network topology and switch state, is modeled based on IEC61970-CIM. The protection information from the fault information system is modelled based on IEC61850, then encapsulated CIM model. When...
To solve the problems of the incorrect operation, the failure action and the low operational percentage on Residual Current Operated Devices (RCDs) in the domestic rural power distribution network, an amount of electric shock signals were demanded to study identifying and extracting method of electrical shock current. In this paper an equivalent circuit model of the human body against electric shock...
In general, modeling the behavior of the core in current transformers (CTs) used for protection and the effects of its operation outside the linear region are commonly reported in literature. The problem in using a mathematical TC model is to obtain the parameters in a particular case in order to implement that model easily, efficiently and accurately. In this sense, a CT model was implemented in...
A DFIG-based wind generator electromagnetic transient model is established on the RTDS platform in this paper. Stator flux oriented vector control scheme is adopted to achieve power decoupling control in the DFIG based wind model. In order to research the impact of the wind farm on the existing protection relay of the network, this paper establishes single machine electromagnetic dynamic equivalent...
Major features of IEC 61850 include SCL-based engineering, uniform data model and communication-based information transfer. Owing to XML-based characteristics of SCL, a substation engineering can be done easily with programming. There are four kinds of information file in the SCL-based engineering - SSD (System Specification Description), ICD (IED Capability Description), CID (Configured IED Description)...
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