CAJ | 학술논문

将风力发电(以下简称风电)分散式接入中低压配电网，采用就地消纳的模式是大规模风电集中并网、远距离输送供电模式的一种较好的补充方式。通过对高渗透率分布式风电功率进行小波包分解，确定了并入电网功率及能量型、功率型储能的充放电功率指令，并提出了一种确定小波包分解层数及频段的优化方法，即以分解层数和频段为控制变量，建立电网总电压偏差最小、总有功网损最小、总电压闪变裕度最大、能量型储能等效寿命损耗最小的多目标函数，进而解得最优分解下并入电网的低频功率及混合储能的中、高充放电功率指令。为使频繁充放电的功率型储能荷电状态(SOC)处于合理的状态，采用模糊理论对其进行自适应控制，并根据模糊控制器的输出修正风电功率最优分解。最后，通过对基于 IEEE 33节点算例的分析计算，验证了所提方法的正确性及有效性。
장풍력발전(이하간칭풍전)분산식접입중저압배전망，채용취지소납적모식시대규모풍전집중병망、원거리수송공전모식적일충교호적보충방식。통과대고삼투솔분포식풍전공솔진행소파포분해，학정료병입전망공솔급능량형、공솔형저능적충방전공솔지령，병제출료일충학정소파포분해층수급빈단적우화방법，즉이분해층수화빈단위공제변량，건립전망총전압편차최소、총유공망손최소、총전압섬변유도최대、능량형저능등효수명손모최소적다목표함수，진이해득최우분해하병입전망적저빈공솔급혼합저능적중、고충방전공솔지령。위사빈번충방전적공솔형저능하전상태(SOC)처우합리적상태，채용모호이론대기진행자괄응공제，병근거모호공제기적수출수정풍전공솔최우분해。최후，통과대기우 IEEE 33절점산례적분석계산，험증료소제방법적정학성급유효성。
Wind power scatteringly connected to distribution systems in which load power is balanced locally is generally considered as a compensation method for massively integrating wind power into the backbone of power grid.In order to ensure the low frequency component integrated in system and to determine the medium frequency and high frequency component which are charged and discharged by composite storage,a wavelet packet optimal decomposition method for wind power is proposed. The established multi-objective function includes minimum system loss,minimum system voltage deviation,maximal system voltage flicker margin and minimum battery equivalent life loss.The stage of charge adaptive control of power-type storage using fuzzy control method is applied to improve its ability of charge and discharge,and the fuzzy control output is used to correct the optimal wind power decomposition.In the end,the IEEE 33-bus numerical results are used to verify the correctness and effectiveness of the proposed method.