In the course of the design , critical technologies are applied , such as digital phase - locked loop , fast fourier transform algorithm , universal asynchronous receiver & transmitter , and so on . in the project , as a important component , the module of monitoring the buses " power quality takes a long time 在设计过程中，使用的关键技术有：使用cpld仿真多路sspc多种状态；在对汇流条电能质量的监测过程中采用频率跟踪技术? ?全数字锁相环；应用fpga技术使用fft运算进行谐波分析；通用异步收发器等技术。
Recurring to the technology of cpld / fpga , via the hardware description language , the equipment simulates some sspcs and the work - state of buses . besides , as a critical component in the system , owning to dsp ' s great task scheduling ability , dsp makes all the tasks work well . on the other hand , depending on the great communicational ability , a windows - based friendly intercommunicating interface is designed 论文从本装置的具体实现功能出发，采用自顶向下的设计思想，一方面使用硬件描述语言进行cpld fpga技术开发，完成多路sspc的多种工作状态的仿真以及配电系统中汇流条的电能质量监测：另一方面利用dsp强大的任务调度能力，完成整个装置各任务间的实时调度；此外dsp强大的通讯能力用来实现它与pc间的通讯，并设计了基于windows系统的友好的人机交互界面。
According to the system requirements , the dissertation analyses the demands on bc in details , and establishes a whole scheme , which divides my research into four parts : ert module , i / o module , bus communication module and power supply module . the sequent work is based on the design 论文首先根据系统要求，对汇流条控制器作了比较详细的需求分析，确立了总体方案，将课题划分为ert (电气远程终端)模块、总线通信模块、 i o模块和电源模块四大部分，然后分别进行设计实现。
