电网电压畸变下电流型PWM整流直流侧恒流控制

董砚; 郭贤朝; 荆锴; 郝正赫; 臧越

董砚,郭贤朝,荆锴,郝正赫,臧越.电网电压畸变下电流型PWM整流直流侧恒流控制[J].电测与仪表,2017,54(11):.
dongyan,guoxianchao,jingkai,haozhenghe,zangyue.Constant DC Current Control for Current Source Rectifier Under Distorted and Unbalanced Conditions[J].Electrical Measurement & Instrumentation,2017,54(11):.

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

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。

作者中文名	作者英文名	单位
董砚	dongyan	河北工业大学
郭贤朝	guoxianchao	河北工业大学
荆锴	jingkai	河北工业大学
郝正赫	haozhenghe	河北工业大学
臧越	zangyue	河北工业大学

摘要点击次数: 2039

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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