Journal of Modern Power Systems and Clean Energy

ISSN 2196-5625 CN 32-1884/TK

A Two-stage Robust Optimal Allocation Model of Distributed Generation Considering Capacity Curve and Real-time Price Based Demand Response
Author:
Affiliation:

1.College of Electrical Engineering, Sichuan University, Chengdu 610065, China;2.Economic and Technology Research Institute, State Grid Chongqing Electric Power Company, Chongqing 201120, China;3.Department of Electrical Engineering and Computer Science, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA

Fund Project:

This work was supported by the National Key R&D Program of China (No. 2019YFE0111500),the National Natural Science Foundation of China (No.51807125), and Sichuan Science and Technology Program (No. 2020YFH0040).

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    Abstract:

    Demand response, the reactive power output of distributed generation (DG), and network reconfiguration have significant impacts on a DG allocation strategy. In this context, a novel real-time price-based demand response formulation is integrated into the allocation model of DG. The tariff is regulated by the difference between the load and active power of renewable energy. Meanwhile, network reconfiguration and the capacity curve describing the active and reactive power limits of DG are included in the optimization model for promoting the allocation of DG. With these measures, the optimal allocation model of DG is established with the goal of maximizing the net annual profit while guaranteeing the efficient utilization of renewable energy. In addition, the uncertainties of renewable energy are considered on the basis of a two-stage robust optimization method. Finally, the entire optimization model is solved by the column and constraint generation algorithm in the IEEE 33-bus distribution system and a practical 99-bus distribution system. Numerical simulations show that the proposed model is effective in terms of improving both the usage of renewable energy and net annual profit.

    表 5 Table 5
    表 8 Table 8
    表 6 Table 6
    表 2 Table 2
    表 7 Table 7
    图1 Capacity curves of DG. (a) WTG. (b) PVG. (c) MTG.Fig.1
    图2 Structure of two-stage robust optimal DG allocation model.Fig.2
    图3 Forecasting power of RDG.Fig.3
    图4 Load demand of different types of consumer.Fig.4
    图5 Transmission price during different periods.Fig.5
    图6 Variation of net annual profit and power curtailment rate of RDG with different price coefficients.Fig.6
    图7 RTP with P-DR model offered to different kinds of consumer.Fig.7
    图8 RTP with T-DR model offered to different kinds of consumer.Fig.8
    图9 Exactness of SOCR in different periods.Fig.9
    图10 Structure of 99-bus practical distribution system.Fig.10
    表 10 Table 10
    表 1 Table 1
    表 11 Table 11
    表 9 Table 9
    表 3 Table 3
    表 4 Table 4
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History
  • Received:November 27,2019
  • Online: January 22,2021