The Research Of Energy Management System In The Mic Grid

Solar photovoltaic power generation as one of the most main forms of clean energy, obtained the rapid development in recent years. Along with the development of the micro grid technology, the solar energy application in the micro grid technology is more and more mature, more and more research on micro photovoltaic(pv) grid, but the development of the micro grid energy management system is not perfect enough. Based on the above factors, the state actively encourage and support the photovoltaic power generation technology in the field of all kinds of the implementation of the demonstration application demonstration projects of golden sun. At a university in yunnan by yunnan kunming region good natural environment conditions, light ChuWei grid demonstration base for the construction of school zone. Was based on the above background, this paper studied the university micro photovoltaic(pv) grid project, electricity generation by using photovoltaic(pv) membrane and introduces the underground garage, supply load using the part of the garage. This paper studied the light ChuWei grid architecture, by comparing the dc bus structure, the structure of the ac bus and hybrid bus structure three structural system, determined the suitable for the structure of this paper. Second light ChuWei power grid and the distributed power generation process was analyzed, and laid a theoretical foundation for the following control system design, each characteristic of distributed power supply, the role in the power system of light ChuWei will have the very big difference, have different control strategy formulation, in order to better use of the distributed power, better control light ChuWei safe and stable operation of power grid, and the characteristic of the distributed power generating principle analysis is necessary. Again, in combination with the actual of time-sharing electricity energy is proposed based on economic optimization scheduling policy. According to the characteristics of each period and electricity prices, combined with the distributed power generating cost analysis, formulated the parallel operation condition and off-grid under the running condition of energy scheduling policy. Finally, combining with the scheduling strategy of energy, according to the established model, from the network operation state of the distributed power generation control are simulated, and through the analysis of curve, the correctness of the control method was verified.