欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
在电压型三电平NPC整流器的控制策略中,直接功率控制（DPC）策略具有算法简单、动态性能好的优点。分析了电压型三电平NPC整流器DPC策略的基本原理,推导了三电平NPC整流器DPC策略数学模型,研究了各矢量对系统瞬时功率的影响,提出了一类新颖的无需交流电压传感器的三电平NPC整流器DPC策略。该新型策略在实现系统瞬时功率控制的同时,还兼具直流电容电压波动控制能力。仿真和实验验证了提出方法的正确性和有效性。
英文摘要：
Direct power control （DPC） strategy has the characteristics of simple algorithm and good dynamic performance in the control strategies of three-level NPC （neutral point clamped） voltage source rectifier. Analyzed the basic principle of DPC strategy used in three-level NPC rectifier and deduced the mathematical model of DPC strategy used in three-level NPC converter. On the basis of the analysis, a novel DPC strategy applied in three-level NPC voltage source rectifier was proposed. The new strategy has a good control effect of instantaneous power without AC voltage sensors. Moreover, the novel strategy solves the DC capacitor voltage imbalance problem of three-level NPC rectifier basing on the reasonable switching states selection. Simulation and experiment results verify the correctness of the analysis.
同期刊论文项目
同项目期刊论文
期刊信息
位置：