基于双DSP硬件架构的固态开关控制系统设计

为解决电网供电电压跌落及短时断电的问题,实现了对负载的不间断供电,设计了基于双DSP和FPGA的固态转换开关(SSTS)控制系统.介绍了SSTS设备的工作原理,通过仿真论证了强制切换(MBB)控制策略及单相电压跌落检测算法的有效性和必要性.根据改进后的SSTS系统控制算法,通过对功能的层次化解析,建立了双DSP+FPGA控制系统架构,并简单介绍了各系统模块的实现方法.最后给出了380 V SSTS装置部分运行结果.实验结果表明,所采用的控制系统架构及控制策略是正确可行的.

Design of a Controlling System for Solid State Transfer Switch Based on Dual-DSP

A high-performance controlling system for solid state transfer switching(SSTS) is developed based on dual-DSP plus field programmable gate array(FPGA).The controlling system for SSTS can be used to solve voltage-sag and short-term power outage.The make before break(MBB) switching strategy and voltage-sag detection algorithm are verified through simulations.After that the system function is comprehensively analyzed.Then a dual-DSP plus FPGA architecture controlling scheme is built to meet the reqirment of which presents the control system higher computing speed and better reliability.The experimental results of 380 V SSTS prototype machine based on this control system platform are given which prove the control system is feasible and successful.