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Data-driven stochastic unit commitment considering commercial air conditioning aggregators to provide multi-function demand response
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DOI：10.1016/j.ijepes.2021.106790.png)
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This paper proposes a two-stage data-driven unit commitment dispatching scheme, which coordinates the multifunction demand response of commercial air conditioning aggregators with thermal units to encounter the variations of load and wind power. In the proposed dispatching scheme, the flexible ramping capability of the thermal units is reflected in the coupling constraints between the ramping capacity and reserve capacity. To improve the flexibility of the whole system, multi-function demand response of commercial air conditioning aggregators is incorporated into the scheduling in both stages. In the day-ahead stage, load-shifting demand response reduces the ramping requirements by reshaping the load profile. In the real-time stage, reserve-capacity demand response releases the ramping capability by providing reserve for the rebalance of wind power fluctuation, which is represented by a data-driven uncertainty set. Since the dispatching scheme is formulated as a min?max-min problem, an accelerating solution method is developed to improve the computational efficiency, which combines the column-and-constraints generation algorithm and the specific property of the model. The simulation results tested on the modified IEEE 118-bus system and Henan power grid in China validate the effectiveness of the dispatching scheme and solution method in increasing flexible ramping capability, reducing wind power curtailment and load shedding, improving economic efficiency, and accelerating computation.
Keyword:
Stochastic unit commitment
Data-driven uncertainty set
Load-shifting demand response
Reserve-capacity demand response
Flexible ramping capability
Accelerating solution method
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IF:
5
论文数:
1.1W
被引数:
3.1W
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