。本文针对三电平高压变频器控制要 求的特点，设计了基于DSP 和FPGA 的控制电路。利用DSP 进行高速浮点计算，满足实时控制的要求；FPGA 并行执行 程序，实现了多路触发信号的同时控制，而且由于采用了硬 件电路完成计算，提高了控制系统的可靠性-. In this paper, three-level voltage inverter control requirements of the features, design and FPGA-based DSP control

本书从应用和设计的角度，详细论述了现代逆变技术，逆变开关器件，逆变系统结构及电路形式等-Book from the perspective of application and design, discusses in detail the modern inverter technology, inverter switching devices, the inverter system architecture and circuit form, etc.

The eight voltage vectors U0 - U7 correspond to the possible states of the inverter (Fig. 2.13). Each of these states can be composed by a different equivalent electrical circuit. In Fig 2.19 the circuit for the vector U1 is presented.