| 引用本文: | 薛尚青,蔡金锭.基于执行依赖启发式动态规划的风电场电压协调控制[J].电力自动化设备,2013,33(1): |
| XUE Shangqing,CAI Jinding.Coordinated voltage control based on action-dependent heuristic dynamic programming for wind farm[J].Electric Power Automation Equipment,2013,33(1): |
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| 摘要: |
| 提出了一种变速恒频双馈电机风电场与静止同步补偿器的电压协调控制方法。介绍了执行依赖启发式动态规划（ADHDP）方法的原理，设计了基于ADHDP的电压协调控制器，控制器以风电场送端母线电压偏差为输入，采用神经网络模型构造执行网络和评价网络，通过最小化评价网络输出的代价函数来决定执行网络产生双馈风电场与静止同步补偿器的附加电压指令值。对不同风速、故障程度的各种故障情形进行仿真，仿真结果表明，ADHDP控制器可起到附加阻尼控制作用，能够协调双馈风电场与静止同步补偿器支撑电网电压，并对故障后的电压振荡有良好的抑制能力，验证了所提方法的有效性。 |
| 关键词: 风电场 静止同步补偿器 执行依赖启发式动态规划 电压控制 |
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| Coordinated voltage control based on action-dependent heuristic dynamic programming for wind farm |
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XUE Shangqing, CAI Jinding
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College of Electrical Engineering & Automation，Fuzhou University，Fuzhou 350108，China
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| Abstract: |
| A control strategy is proposed to coordinate the voltage control between DFIG-based wind farm and STATCOM. The principle of ADHDP（Action-Dependent Heuristic Dynamic Programming） is described and a voltage coordination controller is designed based on it，which takes the sending bus voltage deviation of wind farm as its input and adopts neural network model to construct its execution network and evaluation network. The additional voltage reference sent to DFIG-based wind farm and STATCOM is generated by the execution network through minimizing the cost function outputted by the evaluation network. Simulation is carried out for different wind speeds and voltage sags，which shows that，the ADHDP-based controller，as a supplementary damping controller，coordinates the grid-voltage control between DFIG-based wind farm and STATCOM，and suppresses the post-fault grid-voltage oscillation，verifying the effectiveness of the proposed control strategy. |
| Key words: wind farms STATCOM action-dependent heuristic dynamic programming voltage control |
