磁集成电压调整模块中磁路耦合的精确反馈线性化解耦控制  

An integrating magnetic voltage regulator module based on diffrential geometry nonliear control

作　　者：刘学超[1] 张波[1] 余建生[1] 邓卫华[1] 丘东元[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《国际电子变压器》2008年第6期117-122,149,共7页

摘　　要：磁集成巾磁路耦合的问题。一直影响着磁集成电压调整模块工作特性的提高。为此，本文试图利用微分儿何理论实现磁集成电压调整模块非线性解耦控制。文中首先分析集成磁芯磁路的耦和关系。由此建立了磁集成电压调整模块两输入州输出仿射非线性模型。并基于微分几何理论推导出对应的非线性坐标变换矩阵和非线性反馈规律表达式。仿真与样机实验研究表明，磁集成电压调整模块非线性控制策略。克服了磁集成中磁路耦合的影响。比现有非解耦PI控制有更好的动态。质和稳态特性。同时容易实现各相电流均流控制和磁路集成的控制解耦。研究成果为电压调整模块商性能运行，提供了一种新的非线性控制设计思路。A integrating magnetic Voltage Regulator Module（VRM）using nonlinear decoupled control is introduced. Based on differentlal geometry control strategy for integrating magnetic VRM in order to meet the load requirenlents of high current; low voltage and fast transient. Firstly. a mathematical calculation is introduced in order to get accurate value of integrating magnetics. Then, a nonlinear model is set up by applying impulse mode integral method. The corresponding nonlinear coordinate change matrix and the equation of nonlinear feedback principle are proposed, which can lead to thc state variable feedback accurate linearization mode. The research results show that the integrating magnetic VRM using differential geometry nonlinear control method can achieve better performaces on dynamic or steady state, compared with conventional Proportion Integral（PI） control strategy.

关 键 词：电压调整模块 非线性控制 磁集成 微分几何 

分 类 号：TM4[电气工程—电器]