| 1. | The optimization of secondary power supply system in substation
变电所二次电源系统的优化 |
| 2. | The modularity of the second power supply is important to the power system ' s performance
本文研究dc dc二次电源的模块化。 |
| 3. | This dissertation is devoted to theoretical study and engineering practice on dc / dc converter of secondary power supply in hvdc power system
本文研究高压直流电源系统中的二次电源dc dc变换器。 |
| 4. | In assembled power - supply mode , a majority of equipments are supplied with power together by the power electric chest
在集中供电方式中,设计者将机载武器系统中各用电设备所需的二次电源集中到一起,成为电源电子箱。 |
| 5. | Most of the aeronautic ground convert power system is controlled by analog or partial digital . it ' s very difficult to upgrade or maintenance
在目前的航空地面二次电源系统中，大部分都是模拟电路控制或是部分数字电路控制的400hz逆变电源，系统的可维护性较差，系统升级困难。 |
| 6. | The performance of the static inverter has become more and more important since it is a basilic part of secondary power source in airplane which ensures the electron devices to work normally
作为飞机二次电源重要组成部分之一的静止变流器,是保证用电设备正常工作的基础,其性能的重要性也越来越突出。 |
| 7. | A 3kw prototype converter is built to verify the effectiveness of the improved converter and the best scheme for the blocking capacitor , and the experimental results are also included in this paper
本文将改进型零电压全桥变换器应用于高压直流二次电源dc dc变换器中，研制出一台3kw工程样机，并给出实验结果。 |
| 8. | There are two kinds of secondary power supply in high - voltage dc electric system , one is dc / dc converter that converts 270vdc to 28vdc , the other is static converter that converts 270vdc to 115vac / 400hz
它的二次电源有两种，一种是把270vdc变换为28vdc的直流变换器，另一种是把270vdc变换为115v 400hz交流电的静止变流器。 |
| 9. | High - voltage dc ( hvdc ) aeronautical power system has the advantages such as low weight , easiness to realize redundancy , uninterruptible power supply and high power density , it has been attracting more and more attentions
高压直流航空电源系统具有电网重量轻、易于实现冗余与不中断供电以及二次电源功率密度高等特点,近年来成为国内外研究的热点。 |
| 10. | Aeronautical static inverter ( asi ) is a kind of static converting device , which converts the dc ( 27v / 270v ) in the main power of aircraft into ac of constant - voltage and constant frequency by means of power semiconductor devices . with the development of the aircraft , all the electric equipment on the plane requires the power supply system with better performance
航空静止变流器( asi ? aeronauticalstaticinverter )是航空电源系统的二次电源，其作用是将飞机主电源直流电27v或270vdc变换成恒压恒频单相115v 400hz ，单相36v 400hz ，三相115v 200v ，或三相36v交流电，供飞机上负载使用。 |
