CAJ | 학술논문

针对采用预测-校正内点法求解可用输电能力时可能出现的校正方向错误的缺点，提出基于改进多中心-校正内点法的可用输电能力计算方法。该方法保留了多中心-校正内点法的校正步，解决了计算过程中因校正方向错误而产生的迭代发散问题。选择以预测校正方向作为预测步的仿射方向，并通过预设逻辑判断，有选择地对预测校正过程中校正方向进行加权优化，进一步提高了计算的收敛性。通过对 IEEE 标准测试系统和某省电网实际系统的仿真计算，验证了该算法的可行性。
침대채용예측-교정내점법구해가용수전능력시가능출현적교정방향착오적결점，제출기우개진다중심-교정내점법적가용수전능력계산방법。해방법보류료다중심-교정내점법적교정보，해결료계산과정중인교정방향착오이산생적질대발산문제。선택이예측교정방향작위예측보적방사방향，병통과예설라집판단，유선택지대예측교정과정중교정방향진행가권우화，진일보제고료계산적수렴성。통과대 IEEE 표준측시계통화모성전망실제계통적방진계산，험증료해산법적가행성。
In view of the adverse effect of the corrector in calculating available transfer capability with the predictor-corrector interior point method,an improved multiple-centrality-correction interior point algorithm is proposed for this purpose.The proposed algorithm retains the corrector step of the multiple-centrality-correction interior point algorithm,solving the iteration divergence problem due to the wrong corrector direction.In this algorithm,the predictor-corrector direction is selected as the affine direction for the centrality corrector,and the weighted corrector is selective to be added in the predictor corrector direction during each predictor-corrector step through pre-installed logic,thus further improving the convergence.Simulation results of an IEEE test system and a real power system are provided to verify the feasibility of the algorithm. This work is supported by National Natural Science Foundation of China(No.5 1277052,No.5 1 107032,No.61 104045).