• R&D Center @FGC UES, JSC
    RESEARCH AND DEVELOPMENT CENTER AT FEDERAL GRID COMPANY OF UNIFIED ENERGY SYSTEM, JOINT STOCK COMPANY
  • R&D Center @FGC UES, JSC
    RESEARCH AND DEVELOPMENT CENTER AT FEDERAL GRID COMPANY OF UNIFIED ENERGY SYSTEM, JOINT STOCK COMPANY
  • R&D Center @FGC UES, JSC
    RESEARCH AND DEVELOPMENT CENTER AT FEDERAL GRID COMPANY OF UNIFIED ENERGY SYSTEM, JOINT STOCK COMPANY
  • R&D Center for Power Engineering
    has one of the largest Russian testing center
  • R&D Center @FGC UES, JSC
    RESEARCH AND DEVELOPMENT CENTER AT FEDERAL GRID COMPANY OF UNIFIED ENERGY SYSTEM, JOINT STOCK COMPANY
  • R&D Center for Power Engineering
    unity of professionalism, long experience and scientific potential
  • R&D Center @FGC UES, JSC
    RESEARCH AND DEVELOPMENT CENTER AT FEDERAL GRID COMPANY OF UNIFIED ENERGY SYSTEM, JOINT STOCK COMPANY
  • R&D Center for Power Engineering
    unique offers in the sphere of power generation
engOur ProjectsCompact Overhead Grid Lines
Our Projects
Company news
15.07.11 The division head of the researches in the sphere of the superconductivity Victor Sytnikov (R&D Center for power engineering) made the appearance to the FGS UES management personnel
The second appearance under the formed plan of the monthly statements of the “R&D Center for power engineering” leading researches was held for the management personnel of the “FGS UES” JSC.
12.07.11 The representatives of “R&D Center for power engineering” JSC took part in the innovative projects expertise under the forum “Seliger-2011”
From July 6 till July 7, 2011 the specialists of “R&D Center for power engineering” took part in the R&D innovative projects expertise from the youth innovative center “System-Sarov” in the line of “energy efficiency and power saving” under the National youth forum “Seliger-2011”
04.07.11 Siemens LLC and “R&D Center for power engineering” signed the cooperation agreement
The opening ceremony of the plant “Siemens HV devices” LLC (Voronezh) was held the 1 June 2011.

COMPACT OVERHEAD GRID LINES
New generation power lines are compact power line configurations with the shortest possible intervals between phases; selection of the optimal split phase and line insulation solutions (including intra-phase); new type of supports.

Electric power consumption in both commercial and non-commercial sectors has been growing sharply, which calls for the similar increase in transmission capacity and controllability of power lines.

The most important priorities today are twofold:

  • maximum increase of power line transmission capacity;
  • enhanced controllability and stability of electric power systems.


One of the ways to meet these goals is through deployment of controlled AC power transmission systems with enhanced throughout capacity. These systems are complex engineering facilities featuring single- and multiple-circuit compact power lines, control systems and dispatcher devices with voltage regulation function.

The main purpose of controlled AC power transmission lines with enhanced transmission capacity is to create overhead power lines with predetermined transmission capacity and operational characteristics that meet the requirements of all the rules and regulations as well as preset benchmarks of quality, cost efficiency and reliability of transmission and distribution of electric energy within the system and between multiple systems.

These lines are compatible with Flexible Alternative Current Transmission Systems (FACTS) devices, as well as new active-adaptive network technologies commonly known as smart grids.

Increasing transmission capacity of electric power networks by using compact power lines in combination with FACTS devices is one of the most cost efficient ways to expand network capacity, as it allows to decrease the costs of energy and capacity transmission by lowering power line construction costs and using control systems more efficiently. Additional cost savings are achieved by increased efficiency of use of power line conductor materials as well as reduced size of land plots allocated for power line construction and operation. Therefore, developing new generation power lines meets the requirements of Federal Law #261-FZ of November 23rd, 2009 “On Saving Energy and Increasing Energy Efficiency”.

Compact power lines with reduced inter-phase distance (compact lines) rated for 110—500 kV are widely used abroad. These power lines can be single-circuit or multi-circuit, and can house several circuits with varying nominal voltage on one support pier.

A key distinguishing feature of these power lines is a much smaller distance between phases compared to conventional facilities. At the same time, they meet mandatory limits for the smallest allowed insulation intervals between two phases, maximum operational voltage numbers as well as thunderstorm and commutation overloads.

New generation power lines (compact power lines and controlled self-compensating power lines) and attendant FACTS devices can offer the following advantages compared to conventional power lines:

  • cost savings of 10% - 20% per unit of transmitted power;
  • forced redistribution of active and reactive power flows;
  • increased operational efficiency of reactive power regulation devices;
  • reduced aggregate capacity and cost of capacity and voltage regulators;
  • diminished cumulative power losses within the system;
  • increased mechanical stability of the power line under unfavorable atmospheric conditions;
  • reduced areas of land allocated for power lines (with similar transmission numbers);
  • regulated volume and direction of power flow in electric systems.

The selection of location and phase profile of single-circuit and multi-circuit new generation power lines is guided by the need to improve electric parameters of power lines by altering parameters of electromagnetic fields in inter-phase and adjacent space. Stronger electromagnetic field within the line achieved by moving the phases closer to each other leads to increased transmission capacity and improved electrical and technical parameters of power lines. Weakening of the electromagnetic field in the surrounding space leads to improved environmental characteristics of the power line.

In addition, controlled self-compensating power lines allow for regulation of phase and circuit electric and magnetic fields concurrently with adjusting levels of transmitted electric power. Regulation of the power line parameters should be carried out with the view to meet predetermined operational goals of the power line and power system as a whole. The regulation is achieved by altering the shift angle of the voltage vector system of one circuit related to the voltage vector system of another circuit (θ) within the range of θ=(0÷180°) by using phase-turning devices installed as power line-substation junctions. The use of phase-turning devices on new generation power lines in combination with other FACTS devices allows for meeting the preset operational parameters of power lines, achieving high degree of power line regulation and ensuring substantial capital and operational cost savings within the entire energy system compared to conventional solutions.

Our projects
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