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In recent years, the voltage rise at the end of distribution line and the increase of harmonic voltages has become to be greatly concerned because of extreme expansion of distributed generation (DG) systems and excessive amount of static capacitors (SCs) for improving power factor. For compensating leading current and harmonic currents from consumers, the hybrid type of power quality conditioner was...
According to recent target of the Japanese government, more than 50 GW photovoltaic (PV) power generation will be penetrated in the utility system until 2030. Current measures adopted to DG to keep power quality and safety of the grid may not be adapted any more in the large penetration. In advance of the declaration of the target, CRIEPI proposed the Autonomous Demand Area Power System (ADAPS) as...
The volume of distributed generation (DG) including renewable sources is growing. To keep the power quality of the distribution system with large volume of DG, a research project of "Demonstrative Project on Power Network Technology" regarding the new electric power system is carried out under the research contract with the NEDO. In the project, control devices such as static var compensator...
In 6.6 kV power distribution system of Japan, the introduction of many distributed power generations (DGs) is expected. Under such circumstances, power flow congestion and voltage fluctuation on distribution lines caused by varied output of the DGs will occur. This will result in a failure to maintain power quality and supply reliability by conventional power system management. In this paper, we have...
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