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oe1(光电查) - 科学论文

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  • [IEEE 2019 IEEE Sustainable Power and Energy Conference (iSPEC) - Beijing, China (2019.11.21-2019.11.23)] 2019 IEEE Sustainable Power and Energy Conference (iSPEC) - Analysis on photovoltaic penetration in gridding distribution network considering the timing correlation between source and load

    摘要： The increased photovoltaic penetration has brought severe problems to the power grid. The penetration capacity of solar power should be calculated accurately so as to arrange the construction of power grid in a reasonable way. An improved clustering method considering the timing correlation between source and load is proposed to distinguish typical photovoltaic output scenes in this paper. A risk rating method based on SA-PSO algorithm is also designed to evaluate the risk level for the photovoltaic penetration of the whole region. Results from an actual gridding distribution network demonstrate the accuracy of the method.

    关键词： slope distance,gridding operation,SA-PSO algorithm,photovoltaic penetration,timing correlation

    更新于2025-09-23 15:21:01

  • A Demand Response Strategy in High Photovoltaic Penetration Power Systems Considering the Thermal Ramp Rate Limitation

    摘要： In high photovoltaic (PV) penetration power systems, thermal units may be unable to cope with the large-scale power imbalance caused by PV reduction due to their ramp rate limitation. This paper formulates a demand response (DR) strategy to compensate for the timing imbalance between load demand and generation while avoiding high scheduling and operational expenses. First, the concept of the equivalent slope (ES) is proposed to measure the ramping speed of the net load curve and accurately quantify the DR aggregate power. Then, a DR strategy is proposed based on the ES and the thermal ramp rate limitation, in which the dynamic factor adjustment (DFA) increases the aggregate power by directly controlling the DR strategies, and the leading adjustment (LA) transfers part of the peak demand to other times when PV generation is abundant. Finally, simulation results verify the validity of the proposed strategy in maintaining the power balance while ensuring the comfort level of consumers.

    关键词： ramp rate,high photovoltaic penetration,Demand response strategy

    更新于2025-09-16 10:30:52