电网

In addition, by contrast with the common Space Vector Modulation strategy, it has the capability of self-compensation when it comes to the situation of three-phase Grid Voltages Unbalance, as well as advantage of low tripper components.

与常规空间矢量调制算法(Space Vector Modulation ， SVM)相比较，该算法具有输入电流和输出电压谐波含量小的优点，且当三相电网电压失衡时，能够自动进行补偿。

The GIS gray intensity images were constructed based on mass discharge specimens gathered by the ultra-high frequency and high speeds systems.

1引言气体绝缘组合电器具有绝缘强度高、运行稳定、占地面积少和维护工作量小等优点，在大中城市电网中得到广泛应用。

In this paper, an analysis under the unbalanced power grids was introduced.

文中对电网不平衡的情况作出了分析。

Power is out across the state as a result, there are unconfirmed reports of injuries.

导致了整个州的电网中断，目前有尚未确切的人员伤亡报道。

In this paper ,a new approach developed for ground-fault localization on ungrounded and high-resistance grounded system is described .

从电能质量的角度来看，发生单相接地故障时，这两种接地方式的电网都可以带病运行较长时间，可在预定时间内有计划停电进行维修，这对企业的连续生产意义重大，减少了产品的损失、设备损耗以及停机时间。

ABSTRACT : A complete unidirectional equivalent method to evaluate the reliability of distribution network is presented.

提出了一种完整的单向等值的配电网可靠性评估方法。

Based on the mathematical model of three phase PWM high frequency rectifier, the theory of dual-close-loop controller and implementation of unit power factor of the supply-side rectifier in the doubly-fed generating system are analyzed.

基于三相PWM高频整流器的数学模型，详细分析了双馈发电系统中电网侧整流器的双闭环控制原理和单位功率因数的实现方法。

However, power system accident causedby electrical equipment fault load to more and more serious loss. Capacitive equipment isimportant power transmission and transformation unit, so the on-line monitoring and faultdiagnosis of their insulation is of great practical for realization of state maintenance.

随着电力工业的迅速发展，电网规模不断扩大，结构日益复杂，由电气设备故障引发的电力系统事故所造成的危害也越来越严重。

Based on fuzzy set theory, this paper presents a fuzzy linear programming model that is used calculating minimal unserved energy cost.

应用模糊集理论建立了电网规划中计算最小模糊缺电成本的模糊线性规划模型。

Electric power network planning ; fuzzy unserved energy cost ; linear programming

电网规划；模糊缺电成本；模糊线性规划

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。