摘要
针对风电变流器易损坏且难于维护的问题,提出一种新型的变流器智能模块化技术,将电力电子模块(power electronic building block,PEBB)模块化技术应用于风电变流器。该技术采用现场可编程门阵列(fieldprogrammable gate array,FPGA)构成底层控制的核心控制板,该芯片资源丰富、可靠性更高;且该控制系统具有在线智能故障诊断功能,能及时掌握变流器模块工作状况,在模块发生故障时可准确定位及时更换;通过PEBB模组并联的一致性和均流控制,有效抑制了模组间的环流。Matlab/Simulink仿真和实验验证该模块化技术的正确性和合理性。
A new converter intelligent modular technology was presented, which applies PEBB （power electronic building block） modularization technology to wind power converter. Thebottom control system of the modularization uses the FPGA （fieldprogrammable gate array） as its core control chip, this kind of chip is abundant and with higher reliability; besides, the system is equipped with a function of online intelligent fault diagnosis, the staff can know the running state of the module well at any time, it also makes the staff knows the damaged module＇ s exact location and replace it in time; The loop current between the modules can be restrained effectively by keeping the consistency of parallel PEBB module and conducting average-current control. At last, according to the virtual experimental platform of Matlab/Simulink software, validity and rationality of the modularization is verified.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第3期617-621,共5页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(11202078)
上海市教委科研创新重点项目(13ZZ145)
上海市自然科学基金(11ZR1413800)
