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- Anang Tjahjono, Ardyono Priyadi, Mauridhi Hery Purnomo, Margo Pujiantara
- 2014 Makassar International Conference on…
- 2014

In this paper, modeling of overcurrent relay (OCR) curves using adaptive neuro fuzzy inference system (ANFIS) are proposed. The accurate models of OCR curve with inverse time relay characteristics have an important role for protection coordination of power system. Models of OCR curve are appropriate with IEC standard. This model implements of… (More)

- Ardyono Priyadi, N. Yorino, +4 authors Hironori Kakui
- 2008

This paper proposes a method for transient stability analysis for multi-machine electric power systems. Different from existing methods, a minimization problem with boundary values is formulated for obtaining critical conditions for transient stability, where a new numerical integration method is developed by modifying the trapezoidal formula to solve… (More)

- Anang Tjahjono, Dimas Okky Anggriawan, Ardyono Priyadi, Margo Pujiantara, Mauridhi Hery Purnomo
- 2015 IEEE International Conference on…
- 2015

Create an accurate model with over-current relays (OCRs) play an important role in the coordination of power system protection. Modeling of the OCR using methods like the direct data storage and software models gave only approximate models. Moreover, modeling based on mathematical models is not appropriate to deal with ill-defined and uncertain systems.… (More)

- Anang Tjahjono, Dimas Okky Anggriawan, Ardyono Priyadi, Margo Pujiantara, Mauridhi Hery Purnomo
- 2015 International Seminar on Intelligent…
- 2015

Overcurrent relays (OCRs) play an important role in the protection component that requires high reliability to maintain high security for power systems. Modeling of the OCRcurve using methods like the direct data storage and curve fitting gave only approximate models. Therefore, in this paper proposes modeling of OCRs using Levenberg-Marquardt… (More)

- Ardyono Priyadi, N. Yorino, +4 authors Hironori Kakui
- 2008 International Conference on Computer and…
- 2008

This paper proposes a method for transient stability analysis for multi-machine electric power systems. Different from existing methods, a minimization problem with boundary values is formulated for obtaining critical conditions for transient stability, where a new numerical integration method is developed by modifying the trapezoidal formula to solve… (More)

- Teuku Multazam, Ratna Ika Putri, Margo Pujiantara, Ardyono Priyadi, P Mauridhi Hery
- 2016 International Seminar on Intelligent…
- 2016

The selection of site wind farm is an important element in building a wind power generation to get a site that is capable of produce maximum energy, economic and environmental agreeable. It is obtained if proposed alternative sites has continuous wind resources, access to the grid, good topography, land costs are cheap, reduce noise blade and available road… (More)

- Yanuar Mahfudz Safarudin, Ardyono Priyadi, Mauridhi Hery Purnomo, Margo Pujiantara
- 2014 6th International Conference on Information…
- 2014

This paper proposes new Simplified Firefly Algorithm (SFA) with an updated β coefficient to maximum power point tracking (MPPT) of photovoltaic system under partial shading condition. The different from standard firefly algorithm is neglected a and y coefficients to simplify an algorithm. The other new feature is updated β coefficient for each… (More)

This paper proposes a method for transient stability analysis for multi-machine electric power systems. Different from existing methods, a minimization problem with boundary values is formulated for obtaining critical conditions for transient stability, where a new numerical integration method is developed by modifying the trapezoidal formula to solve… (More)

- Arie Setiawan, Ardyono Priyadi, Margo Pujiantara, Mauridhi Hery Purnomo
- 2015 IEEE International Conference on…
- 2015

A generic problem of distributed solar home systems (SHS) is the lifetime of the chemical storage battery. In this paper, a model of compressed-air energy storage (CAES) based SHS is developed and simulated to determine the size of the storage tank according to the required load and operating time. Industrial air motors and permanent magnet direct current… (More)

- Ony Asrarul Qudsi, Novie Ayub Windarko, Ardyono Priyadi, Mauridhi Hery Purnomo
- 2013 International Conference on Information…
- 2013

This paper presents analytical techniques for reducing switching losses of voltage source inverter (VSI) using Generalized Discontinuous PWM (GDPWM). The switching losses of inverter is influenced by the angle on the modulation of GDPWM. This problem will be optimized using a new optimization method. This method is called as Spontaneous Evolutionary GA… (More)