含聚采出液三相分离技术的研究与应用

为解决孤岛含聚采出液处理难题,提出污水处理首先从脱水站源头开始,通过应用含聚采出液三相分离器,降低脱水站出水(即污水站进水)中油的质量浓度,减轻污水站处理负荷,从而达到降低外输水中油的质量浓度为最终目的的技术思路。采用最新研制的含聚采出液三相分离器,开展现场试验研究,探索含聚采出液处理效果的工艺技术措施,取得了初步成效。

用两表法测三相功率的极性校准

为获得三相功率,有时可用一块功率表分别测出三个单相功率后再计算三相功率,也可用三块功率表同时测出三相功率。目前,对于三相三线制电路,人们常采用两块功率表测量三相功率,即“两表法”,如图1所示。

三相分离装置的理论计算方法

本文通过对三相分离装置的理论分析,推导出三相分离装置的几个特征参数方程,反射锥临界斜坡长度:AO′=1/(sinβ)(q/(L·n·U_p)+r)及污泥回流缝最小面积公式:S=q′(C_(mc)-C_(me))/N·γG(K(h_1-h_v+(γ_m-v_s/(v_w))h_2)\(1/2).等,从理论上建立了三相分离装置的设计方法。

Analysis and Control of a Three-Phase Switched Reluctance Wind Generator

This paper deals with various aspects of modeling, simulation, analysis, and control ofa SRG （switched reluctance generator） in different modes of operation. Excitation method of such a generator is shortly described. The output power of the SRG is controlled so that it can track the maximum output power of a wind turbine drive applications. Also, the output generator voltage is stabilized under either load or wind speed variations. Basic operational characteristics of a three-phase 6/4 SRG are developed through experimental observation. Meanwhile, the real-time operation was implemented in a DSP （digital signal processor） environment. The simulation of the complete system model has been obtained using the Matlab/Simulink software. A good agreement between experimental and simulation results has been observed which supports the validity of the proposed analysis.