作　　者： ; ; ;

机构地区： 清华大学电机工程与应用电子技术系

出　　处： 《电力系统自动化》 2004年第10期29-33,44,共6页

摘　　要： 提出了考虑暂态稳定性约束的区域间极限传输容量(TTC)的计算方法。计及稳定性约束后,TTC的计算可描述为函数空间的非线性优化问题。在算法求解上,利用约束转换技术将函数空间的优化问题转换为常规的静态优化问题,并采用广义降维梯度方法求解转换后的问题。算法运用伴随方程方法处理暂态稳定约束,有效提高了计算效率。所提出的方法较好地解决了考虑暂态稳定性约束后,优化模型规模庞大、计算负担重等问题。这种方法在一个简化系统上进行了测试,测试结果证实了所提出方法的有效性。 This paper proposes a new method to assess the total transfer capability (TTC) with transient stability considered. The stability-related TTC problem is formulated as a nonlinear optimization problem in functional space and it is transformed into a conventional static optimization one via constraints transcript technique. Then an efficient penalty-based GRG (generalized reduced gradient) approach is used to solve the transformed problem, in which the adjoin equation method is applied to evaluate the gradient of the penalty term associated with the stability constraints. The implementation of the adjoin equation method significantly reduces the computation burden due to the stability constraints in solving TTC. Numerical test on a reduced real-world power system illustrates the effectiveness of the proposed approach. This work is supported by the National Key Basic Research Special Fund of China (No. G1998020315).

关 键 词： 极限传输容量 最优潮流 暂态稳定性 伴随方程方法

领　　域： [电气工程] [电气工程]