| 引用本文: | 谭涛亮,张 尧,钟 庆.交直流互联系统的多参数分岔分析[J].电力自动化设备,2012,32(2): |
| TAN Taoliang,ZHANG Yao,ZHONG Qing.Multi-parameter bifurcation analysis of AC／DC power system[J].Electric Power Automation Equipment,2012,32(2): |
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| 摘要: |
| 针对交直流系统的微分-代数模型，提出了一种多参数分岔分析方法。该方法虽然使系统方程的维数有所增加，但其雅可比矩阵具有很强的稀疏性，易于推广至大系统。在此基础上，对单馈入及多馈入交直流系统分别进行了多参数分岔分析。对单馈入交直流系统，分别以励磁参考电压、直流子系统各参数及逆变站换流变变比的极限值为控制参数，研究了这些参数对系统动态负荷裕度（DLM）和分岔点类型的影响。对多馈入交直流系统，重点研究了在直流典型控制方式下直流子系统之间的联络线电抗值及多个直流参考电压共同作用对系统分岔行为的影响。 |
| 关键词: 电力系统 交直流系统 动态负荷裕度 多参数 分岔 控制 |
| DOI： |
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| 基金项目:科技部“十一五”重大支撑项目（2006BAA02A17） |
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| Multi-parameter bifurcation analysis of AC／DC power system |
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TAN Taoliang, ZHANG Yao, ZHONG Qing
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School of Electric Power，South China University of Technology，Guangzhou 510640，China
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| Abstract: |
| Multi-parameter bifurcation analysis is introduced to the differential algebraic model of AC／DC power system，which makes the Jacobi matrix extremely sparse while increases the dimension of system equations，applicable to large systems. Multi-parameter bifurcation analysis is carried out for a single-infeed AC／DC power system and a multi-infeed AC／DC power system respectively. For the single-infeed AC／DC power system，the excitation reference voltage，DC subsystem parameters and converter transformer ratio limit are chosen as the controllable parameters to study respectively their influence on DLM（Dynamic Load Margin） and bifurcation type. For the multi-infeed AC／DC power system，the influence of the impedance of tie line between DC subsystems，together with multiple DC reference voltages，on system bifurcation is analyzed. |
| Key words: electric power systems AC／DC power system dynamic load margin multi-parameter bifurcation（mathematics） control |
