A Computationally Efficient Quasi-Centralized DMPC for Back-to-Back Converter PMSG Wind Turbine Systems Without DC-Link Tracking Errors
A Computationally Efficient Quasi-Centralized DMPC for Back-to-Back Converter PMSG Wind Turbine Systems Without DC-Link Tracking Errors
复制标题
用于无直流链路跟踪误差的背靠背变流器 PMSG 风力涡轮机系统的计算高效的准集中式 DMPC
DOI：
10.1109/tie.2016.2573768
复制
发表时间：
2016-05
影响因子：
7.7
通讯作者：
R. Kennel
中科院分区：
文献类型：
--
作者：
J.-Z. Zhang;汪凤翔;T. Sun;J. Rodriguez;R. Kennel
准集中式直接模型预测控制(QC-DMPC)方案可作为永磁同步发电机(PMSG)风力发电系统背靠背功率变流器的有效替代方案。然而，模型误差和不理想的功率效率导致直流侧电压跟踪偏差明显。针对背靠背换流型PMSG风力发电系统，提出了一种改进的准集中式直接模型预测控制(RQC-DMPC)方案，该方案采用修正的动态参考生成概念，由网侧预测控制器直接控制直流侧电压，该控制器具有灵活设计的代价函数。消除了直流侧电压稳态跟踪误差。为了减少经典格式的计算量，在该方法中引入了计算效率的概念。该方案在基于全现场可编程门阵列的平台上实现。通过实验数据验证了该方法的有效性。并在不同场景下与基于经典比例积分控制器的方法和QC-DMPC方案进行了直流环节控制性能的实验比较。结果强调了所提出的RQC-DMPC方案的改进。
Quasi-centralized direct model predictive control (QC-DMPC) scheme may serve as an effective alternative for back-to-back power converter in permanent magnet synchronous generator (PMSG) wind turbine systems. However, model errors and imperfect power efficiency lead to evident dc-link voltage tracking offset. This paper proposes a revised quasi-centralized direct model predictive control (RQC-DMPC) scheme for back-to-back converter PMSG wind turbine systems, within which, the dc-link voltage is directly controlled by a grid side predictive controller with a flexibly designed cost function using a revised dynamic reference generation concept. The dc-link voltage steady status tracking errors are eliminated. To reduce the computational efforts of the classical scheme, a computational efficient concept is incorporated into the proposed method. The proposed scheme is implemented on an entirely field programmable gate array-based platform. The effectiveness of the proposed method is verified through experimental data. The dc-link control performance comparison with classical proportional-integration controller-based methods and the QC-DMPC scheme under different scenarios are also experimentally investigated. The results emphasize the improvement of the proposed RQC-DMPC scheme.
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DOI：
10.1109/jestpe.2013.2294920
发表时间：
2014-03
影响因子：
5.5
作者：
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DOI：
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发表时间：
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期刊：
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DOI：
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发表时间：
2016-05
期刊：
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影响因子：
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作者：
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