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Island operation possibility plays nowadays an important role in the view of preserving a part of the power system working during close-to-blackout emergency states such as collapsing power system divided in to smaller parts. Unfortunately following paper shows that not all regulation tools available for the transmission system operator (TSO) which are secured by the national grid code might be used...
A new control method based on PID for load frequency control in power systems is proposed in order to suppress frequency deviations due to load and generating power fluctuations occurring by increased penetration of renewable resources such as photovoltaics or wind farms. The variation of renewable resources can be considered to be a kind of load fluctuations. For the appropriate absorption of load...
Generators with a long time delay in output power response, such as large-capacity coal-fired generators, have seldom been used for load frequency control (LFC) in Japan. The electric power supply mix at some electric power companies is likely to be accompanied by a lack of capacity to regulate system frequency in the near future. The authors of this paper therefore have proposed a new LFC logic to...
Currently, there are several published reports on wind power detailing various researches based on such subjects as pitch angle control, variable speed wind turbines, energy storage systems, and so on. These reports propose output power leveling to reduce the adverse effects of power system frequency deviation. In this context, it is desirable to decrease frequency deviations of power systems by output...
Estimating load characteristics is very important from the viewpoints of voltage control of a distribution system with dispersed generators such as PV systems. This paper presents an identification method of distribution system characteristics with time series data. While one of the authors has proposed a system identification method that uses output of interruptible generators as an external disturbance,...
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