CAJ | 학술논문

由于单相电压型PWM整流器比较难以实现交流电流的直接控制,为了使得系统控制达到期望的效果,根据反步法在多变量非线性系统的控制方面的诸多优点,设计了基于反步法的非线性控制算法.详细介绍了单相电压型PWM整流器的数学模型,根据电感电容的能量关系分别构造了电压、电流环的Lyapunov函数,通过Lyapunov函数导数的负定,推断出系统的稳定性.且进行了基于PSIM的电路仿真,并构建采用IGBT全控型开关管的单相H桥的整流电路进行了验证.实验结果显示该方案下能够保证跟踪误差渐近收敛,说明系统设计是正确有效的.
유우단상전압형PWM정류기비교난이실현교류전류적직접공제,위료사득계통공제체도기망적효과,근거반보법재다변량비선성계통적공제방면적제다우점,설계료기우반보법적비선성공제산법.상세개소료단상전압형PWM정류기적수학모형,근거전감전용적능량관계분별구조료전압、전류배적Lyapunov함수,통과Lyapunov함수도수적부정,추단출계통적은정성.차진행료기우PSIM적전로방진,병구건채용IGBT전공형개관관적단상H교적정류전로진행료험증.실험결과현시해방안하능구보증근종오차점근수렴,설명계통설계시정학유효적.
The direct control of alternating current is difficult to be realized by the single-phase PWM rectifier. In order to make the system have high control performance and take the many advantages in nonlinear system control aspects, a strategy based on back-stepping method is analyzed and the model of single-phase PWM rectifier is introduced. The Lyapunov functions of the voltage and current loop are designed respectively according to the energy relations of inductance and capacitance, by the negative definite of the function derivative so that the stability of system is deduced. The simulation based on the PSIM is carried out and the circuits of single-phase PWM full bridge rectifier with IGBT as switches are tested. The experimental results show that the scheme can guarantee the tracking error asymptotically converges, eventually make the system asymptotically stable and explain the system design is correct and effective.