| 引用本文: | 李啸骢,郑 涛,梁志坚,徐俊华.水轮机水门、励磁与电气制动系统非线性综合控制[J].电力自动化设备,2016,36(7): |
| LI Xiaocong,ZHENG Tao,LIANG Zhijian,XU Junhua.hydroturbine governor；excitation；thyristor controlled braking resistor；differential algebraic model；nonlinear control[J].Electric Power Automation Equipment,2016,36(7): |
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| 摘要: |
| 针对混流式水轮机水门、励磁及电阻制动控制系统非线性时变、非最小相位的特性，建立了动态扩展的综合控制系统微分代数模型，采用微分代数多指标非线性控制方法求取反馈解耦控制律。通过哈特曼-格鲁勃曼定理，适当选择输出函数参数矩阵配置闭环控制系统特征根来使非线性系统渐近稳定，将扰动解耦，从而使系统得到优良控制性能。仿真结果表明该控制模型能很好地协调水轮机系统的动、静态性能，增强其抗强干扰的能力，有效地提高水电站输电系统的静态和暂态稳定性。 |
| 关键词: 水轮机调速 励磁 可控制动电阻 微分代数模型 非线性控制 |
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| 基金项目:国家自然科学基金资助项目（51267001）；广西科学研究与技术开发计划项目（桂科攻14122006 -29）；广西自然科学基金资助项目（2014GXNSFAA118338） |
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| hydroturbine governor；excitation；thyristor controlled braking resistor；differential algebraic model；nonlinear control |
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LI Xiaocong, ZHENG Tao, LIANG Zhijian, XU Junhua
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College of Electrical Engineering，Guangxi University，Nanning 530004，China
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| Abstract: |
| A dynamically expanded differential algebraic model of integrated control system for the mixed-flow hydroturbine governor and the excitation & TCBR （Thyristor Controlled Braking Resistor） system is established according to their characteristics of nonlinear time-varying and non-minimum phase，which applies the DASMINC （Differential Algebraic System Multi-Index Nonlinear Control） design method to obtain the feedback decoupling control law. Based on the Hartman-Grobman theorem，the output function parameter matrix is appropriately selected to configure the eigenvalues of closed-loop control system，which gradually stabilize the nonlinear system to decouple the disturbances and achieve the excellent control performance. Simulative results show that，the proposed control system model can well coordinate the dynamic and static performances of hydroturbine system，enhance its anti-interference ability，and effectively improve the transient and steady-state stability of the power transmission system of hydropower station. |
| Key words: hydroturbine governor excitation thyristor controlled braking resistor differential algebraic model nonlinear control |
