This paper proposes a new algorithm to find the optimization method of reactive regulation in power system to solve the problem of the var compensation and voltage control in center-substations. Using the daily data collected in power substations, the algorithm is combined with improved ant colony algorithm and Apriori data mining techniques. The mathematic model of var optimization of power sy...

Abstract The substation power supply system is the key to ensuring safe and stable operation of substation. leakage current in cable may cause serious accidents such as channel fires. traditional detection device cannot distinguish unbalanced circuit. Aiming at accurate station system, a new for developed this paper. composed multiple wireless acquisition terminals, with multi-channel synchrono...

The Faculty of Teacher Training and Education is one the Faculties that has most buildings in Tadulako University, which course requires large capacity electrical equipment facilities also electric power as well. To provide optimal services so lecture, practicum other activities are not disrupted due to problems.
 Electricity problems at currently caused by excessive loading adjusted trans...

This work is devoted to the development of an automated transfer switch (ATS) for 6/0.4 kV substation. The relevant due introduction automation and replacement electromechanical equipment with microprocessor devices in power systems. At lower (field) level, driven by use programmable logic controllers (PLCs) various smart sensors. possibility using modular PLC systems considered. Developed are ...

Cooperative substation records of hail and thunder incidences have been used as a source of data to devclop more accurate and detailed average patterns of these phenomena. Since the accuracy and completeness of records by volunteer observers are generally considered questionable, a method of determining accurate substation records of thunder and hail was devised. The evaluation method relies st...

An essential step toward the development of an intelligent substation is to provide self-diagnosing capability at the equipment level. Transformers, circuit breakers and other substation equipment should be enabled to detect their potential failures and make life expectancy prediction without human interference. This paper focuses on the development of an on-line equipment diagnostics using art...

High-speed and reliable mechanism is required to support peer-to-peer communications for implementing distributed functions in Substation Automation System (SAS). This paper presents the practical implementation and testing of protection scheme based on high-speed peer-to-peer communication using GOOSE (Generic Object Oriented Substation Event) message model in a laboratory setup. An analysis o...

Regarding the nature of non-linear discrete placement, and in order to determine the optimal capacity of the substation, the goal in the present study will be a number of local optimum points. In this research, the problem of optimal placement posts to reduce power losses by considering Distributed Generation (DG). In formulating the objective function, geographical distribution density in the ...

This paper presents a fuzzy inference system for voltage/reactive power control in distribution substations. The purpose is go forward to automation distribution and its implementation in isolated power systems where control capabilities are limited and it is common using the same applications as in continental power systems. This means that lot of functionalities do not apply and computational...