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With more and more photovoltaic (PV) power generation connected to power system, photovoltaic power plant will participate in peak regulation and frequency modulation, and then model structure of photovoltaic power plant need to be improved continually. In the paper, a multi-time scale model was proposed, including local controller module, fault ride through controller module, and plant level controller...
To tackle the active power control problems of large-scale photovoltaic(PV) power stations, a coordination control strategy for PV station clusters was developed in this paper. This method proposed concept of PV station clusters according to the substation in which they connect together. Meanwhile, the power dispatch order would be allocated to PV station clusters by considering ultra-short-term forecasting...
Traditional probabilistic production simulation method generally use the load duration curve, which is difficult to deal with the issue of intermittent renewable energy power generation. This paper proposed a new methodology for probabilistic production simulation of power system, which could consider the time correlation between the wind power, photovoltaic (PV) power and the load. In the method,...
Wind power predication is significant for the safety and stability of power system operation. Due to the power forecasting single model or combination model without considering the information fusion and the influence of forecasting error on power dispatching, forecasting results are not accurate enough. In the paper, a novel combination model for wind power forecasting with error evaluation parameter...
To tackle maximum wind power tracking problems, a fuzzy sliding mode control strategy was developed in this paper. This method established sliding mode surface based on state variable of generator rotational speed and electromagnetic torque, and equivalent control law and switch control law were obtained. Meanwhile, fuzzy rule inference method was proposed based on state of sliding surface to flexible...
The electricity demand and thus the amount of transmitted power are continuously growing in recent year while extensions of transmission systems have kept relatively slow. These results in larger stress of transmission systems that are operated much closer to stability boundaries than ever. This creates a demand for tools allowing very accurate and rapid monitoring of power system voltage stability...
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