Plamen Parushev

The purpose of this report is to show the possibilities of energy efficiency in different operation of diesel generators on an IB type cruise ship. The cruise ship-specific method of collecting, calculating, summarizing and reporting data in different operating modes of the ship in terms of annual consumption of fuel, distance traveled, electricity...

Energy efficiency is a task for shipping companies to find a solution for its improvement related to the Ship Energy Efficiency Management Plan (SEEMP) in accordance with the International Maritime Organization (IMO) MARPOL (International Convention for the Prevention of Pollution from Ships) Annex VI regulations. This report analyzes the shipping...

Achieving high quality of electrical energy, and hence reducing losses, is an important task in modern power systems. Active filters are generally used to compensate for current and voltage harmonics, but in many cases they also have other functions such as reactive power compensation, current and voltage balancing, zero-sequence current compensati...

Autonomous power supply systems are widespread in industry and households. Part of the electric transport vehicles and marine power supply systems are also autonomous systems. A characteristic of these systems is their operation with a load of comparable power. A major share of the load is on the controllable electric drive. Variable frequency driv...

Modern society is increasingly using ICT technologies to transfer information quickly. In addition to the purely technological advantages of IT tools, they enable the recipients of information data to be ultimately facilitated in their operational activities. On the other hand, data transfer, when it comes to transferring files with specific inform...

The article presents a study of the replacement of asynchronous electric motors with synchronous jet electric motors and an evaluation of the efficiency of a ship's air conditioning system in energy consumption modes. The balance of passenger ship electricity required to control the climate system for ventilation, cooling and heating is analyzed. T...

Brought forward in the paper is a simulation study into a section of the power supply system for the trolleybus transport in the city of Varna, Republic of Bulgaria. The simulation reproduces the conditions of the city’s current medium voltage power supply system (MV), that of the rectifier stations, the catenary and the pertaining trolleybuses. Th...

In the present article is presented the advanced control of static compensator (STATCOM) for compensation of voltage asymmetry in power system, which is not based on measurement the current of non symmetrical load. In this way is not necessary to know the sources of asymmetry and their currents. In suggested control as input signals are using the d...