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| 摘要: |
| 设计了一种基于广域测量的双模糊励磁控制器,其主模糊控制器采用发电机端电压和参考电压的偏差及其变化率作为输入,辅模糊控制器采用发电机角频率与惯性中心角频率的偏差及其变化率作为输入,从而使励磁控制器可以反映全局信息。基于Matlab的电力系统工具箱和模糊逻辑工具箱,对4机系统进行了数字仿真,其中励磁调节器采用的控制方法分别为PID、PID PSS和双模糊控制。仿真结果证明与常规的励磁控制方法相比,所提出的基于广域测量的双模糊励磁控制方法可以加强系统承受大扰动的能力,进一步提高系统的暂态稳定性。 |
| 关键词: 广域测量,模糊控制,励磁控制,电力系统,同步发电机 |
| DOI： |
| 分类号:TM761 .11 |
| 基金项目: |
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| Double fuzzy excitation controller based on wide-area measurement |
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LIU Xingjie MI Zengqiang YANG Qixun
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| Abstract: |
| A double fuzzy excitation controller based on WAMS(Wide - Area Measurement System) is developed. To reflect the whole information,the end voltage deviation and its change rate are used as the inputs of the main fuzzy controller of excitation,while the rotate speed deviation between generator and inertia center and its change rate are used as the inputs of its auxiliary controller. A 4 - machine system model is set up with Matlab / PST and Fuzzy Logic Toolbox,which applies PID,PID PSS and double fuzzy excitation controller respectively for digital simulation. Results show that the proposed controller can endure serious system disturbance and improve system transient stability. |
| Key words: WAMS,fuzzy control,excitation control,power system,synchronous generator |
