Implementation of programmed modulated carrier HCC based on analytical solution for uniform switching of voltage source inverters
Implementation of programmed modulated carrier HCC based on analytical solution for uniform switching of voltage source inverters
复制标题
基于电压源逆变器统一切换解析解的编程调制载波HCC实现
DOI：
10.1109/tpel.2002.807199
复制
发表时间：
2003
影响因子：
6.7
通讯作者：
M. A. Choudhury
中科院分区：
文献类型：
--
作者：
K. Rahman;M. R. Khan;M. A. Choudhury
本文为在静止功率逆变器的滞环电流控制器的反馈通路中加入已知幅值的程控函数建立了分析基础。在调制载波中，载波波形的不适当的幅度和斜率经常会遇到高频突然切换的问题。虽然已经有直观的方法来实际解决这个问题，但到目前为止还没有建立适当的分析基础。本文对这一问题进行了解析求解，以便系统、准确地实现逆变器运行中的这种方案。提出了一种基于逆变器电源电压、负载参数和参考电流波形的载波波形可编程斜坡比较电路的理论模型。对于均匀的开关频率运行，可以确定地预测PRCHC的载波波形参数。仿真和实验结果突出了所提出的模型在所有运行条件下实现均匀切换的潜力。
An analytical basis is established in this paper for a programmed function of known amplitude to be added to the feedback path of a hysteresis current controller (HCC) in a static power inverter. Improper amplitude and slope of the carrier waveform in a modulated carrier HCC frequently encounter the problem of sudden high frequency switching. Though intuitive approaches exists to tackle the problem practically, proper analytical basis has not been established so far. This paper deals with solving the problem analytically, so that implementation of such scheme for an inverter operation can be done systematically and accurately. A theoretical model of programmed ramp comparison HCC (PRCHCC) is developed in this paper that defines a carrier waveform based on inverter supply voltage, load parameters and reference current waveform. The parameters of the carrier waveform of PRCHCC can be deterministically predicted for uniform switching frequency operation. Simulation and experimental results highlights the potential of the proposed model for uniform switching at all operating conditions.