摘要
给出两种分流调节方法S3R(sequential switching shunt regulator)和S4R(sequential switching shunt series regulator)的系统结构及拓扑。对S3R的调节过程进行分析,给出滞环比较环节中各参考电压的确定方法;对S4R拓扑中的负载优先原则的实现过程及各开关管的控制逻辑进行了分析。给出S3R的仿真波形,S4R在轻载下的负载总线及蓄电池充电总线仿真波形,以及重载条件下负载和蓄电池充电总线的仿真波形。仿真结果表明这两种拓扑能有效地将负载电压稳定在要求的范围内,对于S4R采用分流调节方式向蓄电池充电,有效减少充电单元的重量,降低成本,提高效率。
The system structure and topology of two shunt regulating methods, S3R and S4R, are presented. The regulating process of S3R is analyzed, and the method of calculating the reference voltage of hysteretic comparator is given. In the S4R topology, the con- trol logic of MOSFETs is analyzed to realize the rule of load preferred. The simulating results of S3R, load of S4R on the condition of light-load, battery of S4R on the condition of light-load, and load and battery of S4R on the condition of heavy-load are presented. In short from the simulating results, these two topologies all can regulate the load voltage in the required range. For S4R, the use of shunt mode for battery charging effectively reduces the mass and cost of charging unit, and increases the efficiency of power.
出处
《测控技术》
CSCD
2007年第6期45-47,50,共4页
Measurement & Control Technology
