【摘要】 提出了一种灵敏度关系求取的多变量摄动法。利用该方法，根据历史数据可方便地求取被研究系统中控制量和被控制量之间的灵敏度关系；利用冗余数据，根据最小二乘法推导出了可消除历史数据中随机干扰影响的计算公式。对不同规模电力系统的仿真试算证明，所提出的多变量摄动法正确。由于可利用历史数据，故所提算法较常规的单变量摄动法更具实用性。更多还原

【Abstract】 A new multi-variable method to get sensitivity is proposed. In this method, the sensitivity between control variables and state variables can be got conveniently using historical data. The equation which can delete the effects of the random disturbance is derived by using the least square method. The simulations to power systems of different dimension show that the proposed multi-variable method is correct. So the proposed method is more practical than the conventional single-variable method.更多还原