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Study on PID Neural-Network-Based Inverter Space-Vector Pulse Width Modulation Strategy

机译:基于PID神经网络的逆变器空间矢量脉冲宽度调制策略研究

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A PID neural-network-based space-vector pulse width modulation (SVPWM) for a three-level inverter is proposed in this paper. A three-level inverter has lots of switching states about the vectors, and the implementation of modulation algorithm is considerably complex. In the proposed design, fast implementation of SVPWM algorithm is realized based on PID neural network instead of conventional neural network. A three-layer feedforward PID neural network takes command voltage and angle as input information and generates 12 symmetrical PWM waves for the three phases by means of a single timer and logic circuits. The measured data are used to test the proposed system by a backpropagation algorithm in the MATLAB Neural Network Toolbox. The result shows that performance is perfect in the whole linear modulation region.
机译:本文提出了一种用于三级逆变器的基于PID神经网络的空间矢量脉冲宽度调制(SVPWM)。三级逆变器有很多关于向量的切换状态,调制算法的实现相当复杂。在所提出的设计中,基于PID神经网络而不是传统神经网络实现SVPWM算法的快速实现。三层前馈PID神经网络采用命令电压和角度作为输入信息,通过单个计时器和逻辑电路为三个相位产生12个对称的PWM波。测量数据用于通过Matlab神经网络工具箱中的反向验证算法测试所提出的系统。结果表明,性能在整个线性调制区域中是完美的。

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