| 1. | A new soft - switching push - pull three - level converter
一种新型软开关推挽三电平直流变换器 |
| 2. | Study of dual pwm three level converter drives system
变频调速系统研究 |
| 3. | Study of energy feedback snubber circuit in high power ipm three - level converter
大功率三电平变流器中的能量回馈型吸收电路 |
| 4. | Based on the small - signal model , the three - level converter is taken as the example to illustrate the design of the closed - loops
然后以buck三电平变换器为例,分别设计其输出电压闭环和飞跨电容电压闭环的补偿网络,最后进行了仿真和实验验证。 |
| 5. | A novel three - level ac chopper is proposed , which is a new multi - level converter applied to high voltage conversion , and utilizes more electric levels to form output voltage and decrease the harmonic content of output waveform
摘要提出一种用于高压电能变换的新型三电平交流斩波电路，该电路允许使用低电压等级的器件完成高压电能变换，并采用较多的电平数去逼近所希望的波形，使输出电压或电流的质量大大提高，谐波含量减少。 |
| 6. | A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper . zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances . the output rectifier diodes commutate naturally without voltage oscillation and voltage spike
针对传统(半桥)三电平直流变换器的一些不足，本文提出一种倍流整流方式pwm零电压开关三电平直流变换器，可以使开关管在全负载范围内实现零电压开关，副边整流二极管无电压尖峰，无占空比丢失。 |
| 7. | Also a prototype for the boost two - level converter is built . the experimental results show that the boost tl converter has lower input current harmonics than the boost two - level converter , and it can satisfy the limits specified in rtca do - 160d . so the boost tl converter has the potential to apply in the future variable frequency ac airborne system ranged from 360hz to 800hz
并完成一台boostpfc变换器进行实验对比,实验结果表明,相比于boostpfc变换器, boosttlpfc变换器能有效地减小电流谐波使其满足相应的谐波标准rtcado - 160d ,所以它适合于即将采用360hz - 800hz变频交流供电体制的航空电网。 |
| 8. | A lcc multi - resonant ( mr ) network is added to the traditional three - level converters to realize zvs . the unique arrangement of a multi - resonant network results in absorption of all major parasitic components hi the resonant circuit , such as transistor output capacitance , diode junction capacitance and transformer leakage inductance , which can eliminate parasitic oscillation in the converter
它的优点在于谐振电容吸收了开关管和续流二极管的结电容，谐振电感吸收了变压器的漏感，使得开关管和续流二极管都能在软开关的条件下完成导通和关断过程，消除了电路中的寄生振荡。 |
| 9. | Three - level converter is a novel technology that is produced and developed in 1980 ' s . three - level ladder output voltage is accomplished by dc - side division voltage and different switch combination , and the capacity of converter system and endure voltage are efficiently improved , and the output voltage harmonics and switch loss are reduced
三电平换流器是20世纪80年代产生并发展起来的一种新兴变流技术，它通过对直流侧的分压和开关动作的不同组合，实现三电平阶梯波输出电压，能有效地提高换流器系统地容量和耐压，减少输出电压谐波和开关损耗。 |
