For the dead band in AC/AC converter controller,a design method of both software and hardware is presented. All the trigger pulses are created by DSP.The full digitalization of the system is completed.The self-commutation of the controller is achieved by intelligent utilization of two timers of DSP.The dead band of commutation is greatly reduced.The quality of output waveform is improved observably .The experimental result verify the outstanding effectiveness and precision of the controller.%针对AC/AC变频电路存在的换流死区问题,提出了一种AC/AC变频控制器软、硬件设计方法.该方法中6路触发脉冲均由DSP生成,完成对系统的全数字化控制.通过DSP中两个定时器的合理使用,实现了AC/AC变频器的自然换流,减小了换流死区对输出波形的影响.实验结果表明,所设计的AC/AC变频数字控制系统具有较高的控制精度和较好的控制效果.
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机译:制备ac ac ac转基因植物或其部分,c ac cu ac转基因植物,植物或其部分的种子,分子的分离核酸的方法。核酸构建体,载体,宿主c,制备polipept,抗体,植物组织,繁殖材料,收获的材料或植物的方法化合物的鉴定方法,农业组合物的生产方法,组合物,植物转基因产物的制备方法,以及编码SRP的分子核酸的用途