三相四线变换器相位补偿控制策略研究

发布时间：2018-06-04 10:32

本文选题：内模控制 + 比例复数积分控制　；参考：《中国电机工程学报》2017年10期

【摘要】：比例复数积分(proportional complex integral,PCI)控制器作为一类基于内模原理控制器的最小构成单元,可用其构造同步坐标系下的比例积分控制器、比例谐振(proportional resonant,PR)控制器、重复控制器。但在上述构造过程中需将各PCI控制器增益取为相同值,此举将降低控制器增益的调节自由度,增大设计难度。该文在获取准PCI控制器的基础上,利用复数形式的增益系数,形成相位补偿准PCI(phase compensation quasi PCI,PCQPCI)控制器,将其与PCQPR相配合,对电压外环正/负序分量和零序分量进行控制,从而实现对三相四桥臂逆变器的恒压恒频控制。所提出的电压外环控制器方案能够独立地对任意次序分量进行相位补偿,提高控制系统的响应速度和稳定裕度。通过频域方法和线性二次型调节器完成对控制器参数的整定。最后通过仿真和实验,验证所提算法的可行性和有效性。
[Abstract]:As the minimum component of a class of controllers based on the internal model principle, the proportional complex integral controller can be used to construct a proportional integral controller in synchronous coordinate system, a proportional resonance controller and a repetitive controller. However, the gain of each PCI controller should be taken as the same value in the above construction process, which will reduce the degree of freedom of the controller gain and increase the design difficulty. On the basis of obtaining quasi PCI controller, a phase compensated quasi PCI(phase compensation quasi PCQPCI controller is formed by using the complex gain coefficient. The controller is matched with PCQPR to control the positive / negative sequence components and zero sequence components of the voltage outer loop. Thus, the constant voltage and constant frequency control of three-phase four-leg inverter is realized. The proposed voltage outer loop controller scheme can compensate the phase of any order components independently and improve the response speed and stability margin of the control system. The tuning of controller parameters is accomplished by frequency domain method and linear quadratic regulator. Finally, the feasibility and effectiveness of the proposed algorithm are verified by simulation and experiments.
【作者单位】：东南大学电气工程学院;国网福建省电力有限公司电力科学研究院;国网江苏省电力公司宿迁供电公司;
【基金】：国家自然科学基金项目(51177015) 新世纪优秀人才支持计划项目(NCET-13-0129) 江苏省产学研前瞻性联合研究项目(BY2015070-13)~~
【分类号】：TM46

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