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文章摘要
电网电压畸变下电流型PWM整流直流侧恒流控制
Constant DC Current Control for Current Source Rectifier Under Distorted and Unbalanced Conditions
Received:May 03, 2016  Revised:May 03, 2016
DOI:
中文关键词: 电流型PWM整流  直流恒流控制  比例谐振控制  谐波补偿控制
英文关键词: current source PWM rectifier(CSR)  constant dc current control  proportional resonant(PR) control  harmonic compensation(HC) control
基金项目:河北省重大成果转化项目(13041709z),河北省自然科学基金(E2013202108),河北省发改委项目(2013)项目资助。
Author NameAffiliationE-mail
dongyan Hebei University Of Technology dangyan73@hebut.edu.cn 
guoxianchao* Hebei University Of Technology 848393328@qq.com 
jingkai Hebei University Of Technology 619163275@qq.com 
haozhenghe Hebei University Of Technology 974913818@qq.com 
zangyue Hebei University Of Technology 540013581@qq.com 
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中文摘要:
      针对电网电压畸变下电流型PWM整流器直流侧含有较大的低次谐波,传统的控制策略需要复杂正负序分解,坐标变换和解耦控制。本文提出了一种无需锁相环的电流型PWM整流直流侧恒流控制策略,推导出直流电流平方的功率外环控制,直流侧采用恒流控制,取代传统的PI控制;电流内环采用比例谐振和谐波补偿控制实现对网侧电流的无差跟踪。该控制算法基于静止坐标系下,无需锁相环、坐标旋转变换和解耦控制,简化了控制模型。仿真和实验也验证了该控制策略的正确性。
英文摘要:
      According to dc current has larger low-order harmonics with Current-Source PWM Rectifier under distorted and unblalanced condition, traditional control strategy needs complex separating positive and negative sequence components, rotating transition of coordinate and decoupling control. Constant dc current control strategy is put forward without PLL with Current Source PWM Rectifier in this paper. By using derived power outer-loop control with dc current square, constant dc current control substitute traditional PI control. In current inner-loop using proportion resonant and harmonic compensation realize grid current no error following. That control algorithms basing on the stationary frame simplify control without complex separating positive and negative sequence components, rotating transition of coordinate and decoupling control. Simulation and experiment show that proposed control method is correctness.
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