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Keywords

demand side energy hub, wind power consumption, energy storage, peak and valley filling

Abstract

In order to solve the problems in active distribution network which incorporates wind power and energy hub, including the escalating power peakvalley fluctuation and wind curtailment, a model for power peakvalley regulation, as well as the wind power accommodation enhancement, is proposed by adjusting both the energy hub and energy storage on the demand side. Through analyzing the model of the sourceload storage on the demand side, the influence of both the wind power accommodation and the power peakvalley difference is assessed, then the equivalent load curve is obtained. The wind powerbased combined coolingheatingandpower weight coefficient is proposed according to the load change and wind power penetration rate during each period. The coupling operation mode of cooling and thermoelectricity in energy hubs is improved, and the level of the wind power accommodation is enhanced through the multienergy complementarity. Meanwhile, the coupling operation mode can also be improved via the proposed model and the EH to determine the charge and discharge controlling strategy of energy storage adapting the operation state of active distribution network. The power peak and valley can be suppressed via the vertically transfer of power, and the accommodation level of wind power can be improved. Finally, an improved IEEE 33node distribution system is included to simulate the model. The results show that this model can effectively improve the wind power accommodation in the active distribution network, along with the peak reduction and valley filling in power load.

DOI

10.19781/j.issn.16739140.2021.01.005

First Page

42

Last Page

51

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