Abstract
In recent years, controlled shunt reactors (CSR) relevant to the class of FACTS facilities have been widely used to control voltage modes and reactive power flows in the high-voltage electrical network. The selection of location, as well as the definition of the law of CSR control in the conditions of stochastic variability of the operation mode of high-voltage power transmission, are associated with numerous technical and economic factors. At the same time, such constraint conditions as ease of use, performance efficiency, purpose and location in the system, as well as the period of commissioning should be taken into account. In the proposed procedure these factors are considered as fuzzy constraints. The procedure of CSR placement in the 330 kV electrical network of Azerenergy system for control of reactive power flows taking into account the mentioned fuzzy constraints is proposed. The obtained simulation results confirm the advantage of the proposed procedure.
Highlights
In the modern period in the power systems of CIS and foreign countries, great importance is attached to the creation of controlled or flexible power lines, which are part of ‘smart” networks (Smart Grid) with FACTS facilities [1]
To control the voltage and reactive power regimes, in addition to the generators, synchronous and static compensators, switching reactors and capacitor banks, new facilities - controlled shunt reactors (CSR) - have been widely used in recent decades [2,3,4,5,6]
The economic analyses have shown that additional energy losses are at such a high level that despite the availability of expensive equipment, the CSR installation is self-supporting for a period of less than 5 years [7]
Summary
In the modern period in the power systems of CIS and foreign countries, great importance is attached to the creation of controlled or flexible power lines, which are part of ‘smart” networks (Smart Grid) with FACTS facilities [1]. To control the voltage and reactive power regimes, in addition to the generators, synchronous and static compensators, switching reactors and capacitor banks, new facilities - controlled shunt reactors (CSR) - have been widely used in recent decades [2,3,4,5,6]. During the selection of power and the CSR installation location, as well as changes in the operating mode of power transmission, the definition of the control mode is associated with numerous economic and technical factors.So, the installation location and the CSR characteristics affect the energy losses in the entire power transmission, the mode stability, ensuring voltage regulation within the predetermined limits during various power transmissions, the formation of excess voltages in individual elements of the power transmission. In the present paper the problems of selection and placement of 330 kV controlled shunt reactors on the basis of studies conducted on real perspective scheme of the power system are considered
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