逆电流

Mesium and high boltage, large capacitance, screw, high ropple current, Used in storing energy of electric welder and UPS, air conditioners etc.

中高压，大容量，螺栓结构，能承受大纹波电流，适用于电焊机贮能，UPS 不间断电源，空调逆变器等电子设备中。

When the voltage space vector is located within overmodulation mode I, the locus in the hexagon remain the circular, but the amplitude is larger than the modulus of voltage space vector to compensate the voltage distortion on the edge of hexagon; the reference voltage vector tracks the hexagon sides in the remaining.

实验结果表明，该算法简单易实现，能够有效的提高直流母线的电压利用率，具有在低频运行稳定，逆变器输出电流正弦度好等优点。

A novel and simple method is proposed to conquer overshoot problem during output current inverting instant.

还提出了一种新颖且简单的方法，克服了逆变电路换向瞬间的电流过冲问题，降低了灯工作电流的波峰系数。

A half-bridge bi-directional current mode high frequency inverter was proposed, and the problem of unequal voltage of capacitance in this circuit can be resolved by adding a balance coil.

提出了半桥双向电流源高频链逆变器的拓扑结构，并对电路固有的电容电压不平衡问题提出了解决方法，采用平衡绕组可以彻底解决电容电压不平衡。

Electrodeposition during brush plating could be changed at a broad area with the inverter by controlling wave, frequency pass arid close and average value of electric current. Electrocleposition process of metal ion was changed and brush plating coating with tine grain, high hardness and good wear resistance was obtained.

逆变焊镀充电多功能电源通过控制电流的波形、频率、通断和平均值，使刷镀过程的电沉积在很宽的范围内变化，改变了金属离子的电沉积过程，获得了晶粒细密、硬度高、耐磨性好的刷镀层。

Aiming to characteristic of 3-phase to 2-phase power supply based on balance transformer , a new current balance compensation method utilizing inverter is proposed, which is mainly used to compensate negative sequence current.

针对平衡变压器平衡供电的特点，提出了一种利用逆变器对三相变两相供电方式下的电流负序分量进行综合平衡补偿的新方法。

Wind power generation ; permanent-magnet direct-driven ; uncontrollable rectifier ; Boost chopper ; SPWM inverter ; direct-current control

风力发电；永磁直驱；不控整流；升压斩波； SPWM逆变器；直接电流控制

The transaxle is lighter in weight and reduces torque losses by as much as 20 percent compared to the previous model.The inverter, which converts direct current to alternating current, has a new direct cooling system to reduce size and weight.

在变速较轻的重量，降低转矩损失高达20亿美元，比以前的模型，逆变器，它直接转换成电流交流，有一个新的直接冷却系统，以减少尺寸和weight。

The methods to achieving balanced current are presented and simulated in this paper. Thirdly, the snubbers are designed to compress the switching voltage transient. When IGBT is abruptly turned off, trapped energy in the circuit stray inductance is dissipated in IGBT, causing a voltage overshoot and damaging IGBT.

针对IGBT工作过程中出现的电压尖峰、电流尖峰和大的开关损耗问题，本文首先从理论上详细分析了IGBT逆变桥缓冲电路的工作原理，推导出缓冲电路各元件的参数计算公式，讨论了缓冲电路各元件参数对关断电压波形的影响并进行了仿真分析。

Development of a Wireless Bi-directional Microactuator on Thermal Expansion of Paraffin;2. This paper presents a bi-directional current source high-frequency chain inverter.

提出了一种双向电流源高频链逆变器，详细介绍了电路的工作原理和控制原理，给出了控制方案和主要参数设计。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。