The concept of smart substations has been widely used in power systems. Since the variation in interfaces and communication manner, the operating& maintenance methods for smart stations have changed a lot compared with the traditional substations. In this paper , a training system based on virtual substation primary equipment combined with real secondary devices is developed for accident management and operating work in smart substations. The training system is also used to test the relay protection algorithms、Ethernet switch functions、fault recorder actions ,and so on.
This paper introduces the smart substation hardware-in-loop simulation training system structure based on the analysis of the smart substation simulation training requirements. The training system scheme has been designed according to the different training requirements to support training of staffs in smart substation for operating and maintenance in all possible ways. Combining with the practical solutions, the application of the training system will be introduced. This design scheme will take important effect in the development of smart substation and its operating and maintenance training.
In recent years, in order to achieve a stable and efficient output, the research about the method of efficient controlling has become a significant and popular research topic in the academic field. In this paper, a novel electromagnetic transient model of photovoltaic cells is proposed and established with the method of Maximum Power Point Tracking (MPPT) and forward-feed controll. Dynamic simulation proves that the model can reflect working situation of the photovoltaic systems correctly under different environment parameters.
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