| 1. | Following the vector control technique , the quick development of dtc makes itself a new high - powered alternating current ( ac ) driving technique paralleling to the vector control
直接转矩控制技术是继矢量控制技术之后发展起来的又一种高性能的交流调速技术。 |
| 2. | Ac alternating current ( ac ) is electric current that alternates between a positive maximum value and a negative maximum value at a characteristic frequency , usually 50 or 60 cycles per second ( hertz )
交流交流是指电流在正负最大值之间以特定的频率变动，通常频率为50或60赫兹。 |
| 3. | The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320f240 are selected to form high performance alternating current ( ac ) adjusting - speed system in this dissertation after detail schemes argumentation
本论文在详细方案论证的基础上选择了交?直?交电压型主电路和数字信号处理器tms320f240构成交流调速系统。 |
| 4. | Electronic no - grade timing , automatic constant temperature , alternating current ( ac ) contactor controlling , direct spray cooling machine , hot air machine which can be adjusted 1 - 3 gear , and it is stabilization and reliable , long life and less noise
电子无级调速，自动恒温，交流接触器控制，直射冷却风机，热风机可调1 - 3挡，稳定可靠、寿命长、低噪音。 |
| 5. | The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320lf2407 are selected to form high performance alternating current ( ac ) excitation system of asg in this dissertation after detail schemes argumentation
本论文在详细方案论证的基础上选择了交直交电压型主电路和数字信号处理器tms320lf2407构成高性能的异步化同步发电机交流励磁系统。 |
| 6. | In the following decades , short superconducting cables were built and tested to carry alternating current ( ac ) in brookhaven , n . y . , and near graz , austria , with the latter operating connected to the local grid for several years
接下来的几十年，有人做出较短的超导电缆，在纽约布鲁克海文和奥地利格拉茨附近测试输送交流电，在奥地利还连接当地的电力网，运作了好几年。 |
| 7. | In the recent 20 years , with the appearance of the new power electron apparatus and microprocessor and the development of the control theory on the alternating current ( ac ) motor , the technology of variable frequency speed variation has improved rapidly
近20年来，随着新的电力电子器件和微处理器的推出以及交流电机控制理论的发展，交流变频调速技术取得了巨大的技术进步。 |
| 8. | While edison feuded with rival electrical pioneers over whether power should be distributed using a direct current ( dc ) or an alternating current ( ac ) , the issue dividing opinion today is climate change and regulation of greenhouse gases
当年爱迪生与同为电气先锋的竞争对手在配电应使用直流电( dc )还是交流电( ac )的问题上争执不下，而目前存在分歧的，是气候变化和温室气体监管问题。 |
| 9. | Electronic no - grade timing , automatic constant temperature , alternating current ( ac ) contactor controlling , direct spray cooling machine , hot air machine which can be adjusted 1 - 3 gear , and it is stabilization and reliable , long life and less noise
电子无级调速,自动、恒温,交流接触器控制,直射冷却风机,热风即可调1 - 3挡,稳定可靠,寿命长,低噪音.适用于轻工,食品,饮料,糖果,文化用品,工艺、美术五金工具,日用百货,化工用品等 |
| 10. | Hvdc is an abb innovation that transports large power loads over long distances with low losses and minimal environmental impact , requiring just two 500 kilovolt ( kv ) dc power lines to carry the same power load as five alternating current ( ac ) lines
Hvdc技术是abb的一项创新，在长距离的传输中，它传送大量的电量，而损失很低，而且对环境的影响也达到最小化，只需要两条500千伏的直流电线就可以运载相当于五条交流电线输送的电量。 |
