Study Based On The Power Fluctuation Of Wind Power Feed-in Tariff Model And Impact

The paper first studied the background of wind power industry of the development of domestic and foreign policies or regulations in recent years,based on wind power price. Then analyzes the advantages and disadvantages of the various pricing mechanisms, and proposed to use storage system to stabilize wind power energy, introduce the feature of some kinds of energy storage systems, and tell their benefits for the environment and the effect on the power system peak load and scheduling.Analyzed the economy of wind farms, from an investor’s point of view to explore the economics of wind power companies, with a new wind benchmark NDRC July 1, 2015 to develop a tariff basis, then to assess the investment rate of being established of wind power projects in the four wind resource areas,combined with typical wind farm economic models and data, to do the economic evaluation of wind power projects, calculate the internal rate of which is called capital FIRR, combined with sensitivity analysis, to determine if wind power companies can achieve considerable investment return under the current benchmark price or not.We proposed a new tariff pricing mechanism- based power fluctuation factor of wind power tariff model. According to industry 1min and 10 min of wind power and net power fluctuation maximum rate of change and requirements and proposed the concept of power fluctuation factor, and analyze its impact indicators one by one, was established to the factor of wind power online pricing model considering the power fluctuations based on the power fluctuation. At the same time outlined a method to improve the power fluctuation factor, namely the wind farm output power stability can be improved through the use of energy storage technologies. For various reasons of their own technical and financial aspects, the small and medium wind power companies in the current is difficult to obtain profitability benchmark price.Based on the volatility characteristic of wind power and intermittent, proposed a new concept called power fluctuation factor, and elaborated on the main indices, use the index calculate the standard, and completed the establishment of new wind power electricity price model. They were analyzed single lead-acid batteries and super capacitors as energy storage systems, and hybrid stabilizing effect of the energy storage system, and to obtain a mixed storagesystem not only more economical, but also wind power optimization stronger.Taking into account the characteristics of lead-acid batteries and energy storage super capacitor, a combination of both advantages in building a hybrid energy storage system smoothing wind power fluctuations, and seek their tariff curve when working together under stabilize wind power waveform, and integrated storage Plant cost and tariff model, we get a wind farm, although bear the cost of storage, but you can still achieve a reasonable return by obtaining a higher tariff conclusions.And participation in the power system model peak through the establishment of wind farms based on the power of the wind farm under the optimal tariff fluctuation state of maximum benefit is obtained under various constraints, the optimal value of the objective function.Then created a Bayesian game model wind power companies and grid companies based tariff to obtain tariff formulation not only the cost of electricity generation companies, power companies estimated price, but also closely related to their uniform area. According to the final conclusion, on tariff regulation of a number of recommendations to policy makers.