拓扑结构

The algorithm makes the discrete points sort in scan manner, and secondly it constructs convex hull and triangulates the sorted points by the optimal convex hull technology which is proved by the author, and optimizes triangles utilizing topological structures of directed edges.

该算法对离散点进行扫描线方式排序，利用最优凸壳技术进行凸壳的生成和三角网联结，最后利用有向边的拓扑结构进行三角网优化。

By removing a pole the same approach can be used for a DC switchboard, offering a "Universal" topology.

通过移除一个基点，在直流配电板上可以采用同样的方法，即提供了一个&通用的&拓扑结构。

By removing a pole the same approach can be used for a DC switchboard, offering a "Universal" topology.

通过移除一个基点，在直流配电板上能采用同样的办法，即提供了一个&通用的&拓扑结构。

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。

Cascade and diode-clamp voltage source converter has become increasingly popular in recent years due to their practicability.

级联多电平变换器和二极管箝位多电平变换器是现今研究较多并且实用性较强的两种多电平拓扑结构。

In addition, for the same power capability, the cascaded converter requires less number of main power components such as main valves and main diodes.In this paper, cascade H-bridge converter with CPS-SPWM technique has been proposed, which is the combination of cascade structure and CPS-SPWM technique.

本文提出了基于CPS-SPWM技术的级联H桥型多电平变流器，它是CPS-SPWM技术与级联H型变流器拓扑结构的结合，同时具备二者的优点，在大功率变流器领域具有很好的应用前景。

In this paper, a shunt APF topology with cascade multilevel converter based on Carrier Phase Shifted PWM is presented. The systematic analysis of the harmonic and reactive power detection, AC side and DC side control, system parameter design and so on is done. The simulation study is carried out.imulation shows the APF system is of fast dynamic response and good compensation. Theory analysis and experimental system is feasible..

因此，本文将二者结合起来，提出了基于载波相移PWM技术的级联型多电平变流器并联APF系统的电路拓扑结构，并在谐波及无功检测、交直流控制策略和系统参数设计等方面进行了系统的分析，在此基础上进行了仿真研究。

This approach has the advantages of simple circuit, accurate detection and good robustness. Two kinds of topologies in Active Power Filter have been proposed, including APF based on cascade converter with phase-shifted SPWM technique and APF based on current source multimodular converter with phase-shifted SPWM technique.

本文提出了两种基于相移SPWM技术的并联型有源电力滤波器的拓扑结构：基于相移SPWM级联型变流器的电压源型APF，基于电流型相移SPWM组合变流器的电流源型APF。

This paper will present a new diode-clamp cascade multilevel converter derived from these two topologies. The novel concept of the new diode-clamp cascade converter is based on the connection of multiple three-level diode-clamp converter modules.The multilevel waveform is synthesized by adding of each converter output voltage.

本文将结合这两种拓扑结构，研究了一种新型的二极管箝位级联多电平变换器，其思想是将数个二极管箝位变换器模型串联起来，其输出电压是通过合成每个二极管箝位变换器的输出电压而形成的。

In the investigation, non-equilibrium Al-based materials were prepared using rapid solidification techniques, including melt spinning and close-coupled inert gas atomization.

从原子拓扑结构角度对Al基合金所特有的极弱非晶形成能力进行了解释，并提出通过小原子的微合金化改善Al基合金的非晶形成能力的思路。

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。