Interconnection Of Electric Power Systems Research Articles

Reduction of Damping Oscillations of Power Systems with Combinational Operation of LFC & AVR in Single Area

The main aim of this paper is to reduce the damping oscillations. In this paper a new model is proposed to show the interaction between load frequency oscillations and automatic voltage regulator loops and to achieve more accuracy in dynamic and steady state response. The major problem arising from large scale electric power system interconnection is the low frequency oscillation of interconnected system. In order to maintain all the scheduled power transactions to the constant value, automatic generation control of a power system with closed loop feedback is used. By using the data acquisition system which conducts the actual operating conditions of the systems and the errors are computed. In ordered to maintain the level of voltage and frequency automatic generation control method through LFC loops is used.

Economic Feasibility on the Interconnected Electric Power Systems in North-East Asia

The interstate electric power system, as an alternative for energy cooperation under regional economic block, was fervently debated prior to the restructuring of electric power industries and rapidly expanded in many regions since the 1990s. Especially, electric power system interconnection in the Northeast Asia region may bring considerable economic benefits since this region has strong supplementation in resource holdings, load shape, fuel mix, and etc. In this paper, we implement the ORIRES model, proposed by ESI of Russia, in order to analyze the economic feasibility on the Northeast Asia Region Electrical System Ties (NEAREST) project.

05/00186 The influence of interconnection of electric power systems on load characteristic and frequency regulation: Guo, Y. and Yu, D. Electric Power Systems Research, 2004, 70, (1), 23–29

05/00186 The influence of interconnection of electric power systems on load characteristic and frequency regulation: Guo, Y. and Yu, D. Electric Power Systems Research, 2004, 70, (1), 23–29

The influence of interconnection of electric power systems on load characteristic and frequency regulation

In China, national interconnected power system is a necessary trend for the development of electric power systems. Due to the time lag and temperature difference in different areas, the peak load discrepancy will influence the ratio of the regular components to stochastic components of system loads when power systems in different areas are connected. The power spectral densities of the regular loads and the stochastic ones were analyzed and compared in this paper, and how the load change works on the frequency regulation was also described with illustrations. The conclusion emphasized that primary frequency regulation is still relatively significant to the security of operating a huge interconnected power system, even if the system frequency could be controlled well through secondary regulation.

Interconnection of electric power systems in the Arab world

Economic and technical considerations are usually the underlying factors for interconnecting neighbouring electric power systems. Among some of the benefits that may be realised are plant capacity savings, interchange due to diversity, emergency power interchange, spinning reserve savings. However, planning of interconnections is a demanding task and must cover a wide range of technical aspects. This article presents the advantages, requirements and problems arising from the interconnection of electric power systems in the Arab world. It also presents the planning principles for grid systems, procedures for power system development planning, technical aspects of interconnection and possibilities of increasing interconnection capacity by limited means. The results of studies investigating the feasibility of interconnecting the power networks of the six countries which form the Gulf Go-operation Council (GCC) are presented. The article also shows existing and future interconnections of power systems in the Arab world.

North-South grid interconnection

Gas grid development offers a model for North-South cooperation in electric power system interconnection and growth. At this time, when most developing countries outside the new industrial countries are suffering their worst ever recession, attention must go to ‘recycling’ the vast capital surpluses that now exist in the North. A new ‘Marshall Plan’, on a North-South level, is called for. Investment should aim to reverse recession, then sustain economic growth: for this electric power is vital. The huge power potentials of many developing countries should logically be developed in a global, cooperative, multilateral framework.

Interconnection of electric power systems

Companies with adjacent power systems are showing an ever increasing tendency to interconnect their properties. Supplementing previously published information, the following (our articles classify and discuss the various interconnection services available.