电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2014年
15期
8-12
,共5页
分布式%无功补偿%快速傅里叶变换(FFT)%RS485
分佈式%無功補償%快速傅裏葉變換(FFT)%RS485
분포식%무공보상%쾌속부리협변환(FFT)%RS485
distributed system%reactive power compensation%fast Fourier transform(FFT)%RS485
针对基于 RS485总线的功率因数分布式补偿系统设计,阐述了无功补偿控制的原理以及分布式补偿的工作原理,进行了基于单片机控制的主从机软硬件设计。按照适补原则,采用一定比例配置的电容器组,控制器检测每只电容器的网络地址、容量大小,根据需要补偿的无功功率,在所有电容器组组合方式中选一组最接近但补偿容量不超过的补偿方式进行补偿。实现了投切电容的智能化控制。
針對基于 RS485總線的功率因數分佈式補償繫統設計,闡述瞭無功補償控製的原理以及分佈式補償的工作原理,進行瞭基于單片機控製的主從機軟硬件設計。按照適補原則,採用一定比例配置的電容器組,控製器檢測每隻電容器的網絡地阯、容量大小,根據需要補償的無功功率,在所有電容器組組閤方式中選一組最接近但補償容量不超過的補償方式進行補償。實現瞭投切電容的智能化控製。
침대기우 RS485총선적공솔인수분포식보상계통설계,천술료무공보상공제적원리이급분포식보상적공작원리,진행료기우단편궤공제적주종궤연경건설계。안조괄보원칙,채용일정비례배치적전용기조,공제기검측매지전용기적망락지지、용량대소,근거수요보상적무공공솔,재소유전용기조조합방식중선일조최접근단보상용량불초과적보상방식진행보상。실현료투절전용적지능화공제。
According to the power factor distributed compensation system design based on the RS485 bus,this paper made an exposition of the principle of the reactive power compensation control and that of the distributed compensa-tion,and designed the hardware and software of the master - slave machine based on the single chip microcomputer. In accordance with the principle of optimal repair,a certain percentage of the capacitor banks were configurated,the network address and capacity of each capacitor were detected by the controller. According to the reactive power nee-ding compensating,a set of compensation mode,which was closest to but not more than the compensation capacity, was chosen among all groups of capacitor combinations to compensate. Thereby the intelligent switching on - off con-trol for capacitance was realized.