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中文摘要：
提出一种基于参数化潮流模型的大型互联电网可用输电能力改进算法.该方法建立在重复潮流法的框架下,利用连续潮流模型改进原有计算过程,通过主从迭代解决潮流分析中的收敛性与稳定性问题,并计及功率增长方向对结果的影响;约束校验过程中将故障参数化,通过建立连续潮流模型来辨别潮流无解时系统是否真实失稳;多断面功率控制过程中将断面功率参数化,建立连续潮流模型改进功率调整过程.通过CEPRI 36节点系统与实际大型互联电网的算例验证了所提算法的有效性以及对潮流收敛性较差系统的适应性.
英文摘要：
In order to calculate the available transmission capability of large scale interconnected power grid,an improved algorithm based on the parameterized power flow model is proposed in the framework of repeated power flow algorithm,which adopts continuous power flow model to enhance the primal calculation process,improves the convergency and stability of power flow analysis by alternate iteration and considers the impact of power augment direction on the calculative results.The fault is parameterized during constraint check and the continuous power flow model is built to detect if the system is really instable when the power flow is unsolvable.The cross-section power is parameterized during multi-section power control process and the continuous power flow model is built to improve the control process.Case study is carried out for CEPRI 36-bus system and a practical large scale interconnected power grid,which shows the effectiveness of the proposed algorithm and its adaptability to system of poor power flow convergency.
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