摘要
针对电力市场环境下最大传输能力(TTC)的计算问题,提出了一种新的基于最优潮流(OPF)的TTC计算方法.该方法建立了考虑发电机优化调度以及系统负荷变化模式的用于TTC计算的数学模型,并采用基于信赖域内点法的OPF算法求解,由多步中心校正原-对偶内点法连续求解线性规划子问题,通过信赖域决定线性化步长的选取.对IEEE30节点系统在不同数学模型下计算结果进行比较,验证了提出的TTC计算方法的有效性和实用性;与连续潮流(CPF)计算结果进行比较,结果表明OPF方法可以避免CPF计算TTC较为保守的缺点.
The calculation of total transfer capability (TTC) is a fundamental and important work in electricity market. To solve the problem, a novel method based on optimal power flow (OPF) was proposed for calculating the TTC. A mathematical model for the calculation of TTC, which considers the optimal generation dispatch and system load change, was established. The model is solved by the OF algorithm based on trust region interior point method. The algorithm successively solves linear programming subproblems. A primal-dual interior point method with multiple centrality corrections is applied to solving the linear programming subproblems. Linear step size is adjusted by using the trust region method. The numerical results of IEEE 30 bus system were compared with other mathematical models. The results show the effectiveness and practicability of the proposed method in calculating the TTC. Comparisons with the continuation power flow (CPF) method were also provided to demonstrate that the OPF method could avoid the conservative TTC results obtained from the CPF method.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2004年第8期1233-1237,共5页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(50079006)
