Vitaly Spitsa

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One of the major factors defining voltage stability limits of an electrical power system is electrical load characteristics. Since any detailed information on complex load composition at the system buses is usually absent for a constantly changing power demand, there exist large parametric uncertainties in the electrical load representation. In order to(More)
This paper presents a detailed three-phase analysis of very large real-life distribution networks using the Electromagnetic Transients Program (EMTP). All main network elements, including relay protection devices, are accurately modeled considering their control sequences. Model validation is achieved with steady-state and transient simulations. The(More)
The paper presents an in-depth analysis of the automatic reconfiguration and self-healing principles of the next generation (3G) smart grid of a real metropolitan distribution network. The large network is to be divided dynamically and remotely controlled into three smaller subnetworks to further increase the reliability of electrical power distribution(More)
This paper describes the challenges and lessons learned when developing industrial-grade data translators aimed for the interfacing of power-flow programs with Electromagnetic Transients Program-type programs. It has been found that the greatest challenges to overcome include: 1) the lack, in the databases used in power-flow programs, of vital pieces of(More)
We present a new voltage controller for an induction generator in an autonomous power system. The controller acts via a PWM inverter which is connected in parallel with the induction generator and maintains a constant voltage magnitude at the generator terminals. In addition to this voltage regulation, the controller successfully eliminates harmonic(More)
We present a new method of a small-signal stability analysis for power systems with parametric uncertainties in load characteristics. These uncertainties must always be considered in a power system stability assessment since a power demand changes constantly and a precise composition of the electrical loads is usually unknown. The proposed method is based(More)
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