Linear and Sliding-Mode Control Design for Matrix Converter-Based Unified Power Flow Controllers
Linear and Sliding-Mode Control Design for Matrix Converter-Based Unified Power Flow Controllers
复制标题
DOI：
10.1109/tpel.2013.2282256
复制
发表时间：
2014-07
影响因子：
6.7
通讯作者：
J. Monteiro;J. F. Silva;S. Pinto;José Luis Palma
中科院分区：
文献类型：
--
作者：
J. Monteiro;J. F. Silva;S. Pinto;José Luis Palma
本文介绍了作为统一潮流控制器（UPFC）工作的三相矩阵变换器的线性、解耦和直接功率控制器（DPC）的设计和性能比较。基于矩阵变换器的UPFC的简化稳态模型首先用于设计传输线有功功率(P)和无功功率(Q)的线性控制器，该模型安装了改进的文丘里尼高频脉宽调制器。为了使P和Q功率控制器之间的交叉耦合最小化，采用逆动态线性化方法合成了解耦线性控制器。然后使用滑模控制技术开发DPC，以保证鲁棒性和解耦控制。通过仿真和实验结果对所设计的P功率控制器和Q功率控制器进行了比较。线性控制器表现出可接受的稳态行为，但在瞬态运行中仍然表现出P和Q功率之间的耦合。DLC没有交叉耦合，但对参数敏感。结果表明，该方法具有零误差跟踪、响应速度快、无超调和无稳态误差的解耦功率控制特性。所有设计的控制器都使用相同的数字信号处理硬件实现。
This paper presents the design and compares the performance of linear, decoupled and direct power controllers (DPC) for three-phase matrix converters operating as unified power flow controllers (UPFC). A simplified steady-state model of the matrix converter-based UPFC fitted with a modified Venturini high-frequency pulse width modulator is first used to design the linear controllers for the transmission line active (P) and reactive (Q) powers. In order to minimize the resulting cross coupling between P and Q power controllers, decoupled linear controllers (DLC) are synthesized using inverse dynamics linearization. DPC are then developed using sliding-mode control techniques, in order to guarantee both robustness and decoupled control. The designed P and Q power controllers are compared using simulations and experimental results. Linear controllers show acceptable steady-state behavior but still exhibit coupling between P and Q powers in transient operation. DLC are free from cross coupling but are parameter sensitive. Results obtained by DPC show decoupled power control with zero error tracking and faster responses with no overshoot and no steady-state error. All the designed controllers were implemented using the same digital signal processing hardware.