论文部分内容阅读
JX1-1 CEPA平台电潜泵大量采用一对一施耐德低压变频器,每一台施耐德变频器均配置了同等容量的前置无源滤波器,这种传统的无源滤波器在滤除谐波的同时,会给电网注入容性无功功率,导致整个平台的电网电流偏高、无功功率偏大、功率因数很低、变压器出力下降及利用率低等多个问题。本文主要介绍了海上石油平台谐波的产生及危害,并对JX1-1 CEPA平台电潜泵供电系统的谐波及无功功率进行了分析,提出了增加模块化有源滤波器APF的治理方案,通过对有源滤波器APF使用前、后的谐波、电流、无功、温度、变压器档位等状况进行比对和分析,证明模块化有源滤波器的优越性及实用性。现场运行结果表明,有源滤波器投用后,A、B段的功率因数由容性0.56和0.46,均提高到感性0.97;无功功率明显减小,其中A段减小了900A、B段减小了1200A,变压器负荷降低近一半,大幅降低电网的线路损耗。
JX1-1 CEPA platform ESP a large number of one-to-one Schneider low-voltage inverter, each Schneider inverter are equipped with the same capacity of the front passive filter, the traditional passive filter in the filter harmonic At the same time, it will inject capacitive reactive power into the power grid, resulting in high grid current of the whole platform, large reactive power, low power factor, low output of the transformer and low utilization rate. This paper mainly introduces the generation and the harm of the offshore oil platform harmonics, and analyzes the harmonic and reactive power of the electric submersible pump power supply system of the JX1-1 CEPA platform, puts forward the plan to increase the modular active filter APF By comparing and analyzing the harmonic, current, reactive power, temperature, transformer gear and other conditions before and after the active filter APF, prove the superiority and practicability of the modular active filter. The field operation results show that after the active filter is put into operation, the power factor of A and B sections increases from capacitive 0.56 and 0.46 to inductive 0.97, reactive power decreases obviously, and A section decreases by 900A. Section B By reducing 1200A, the transformer load is reduced by nearly half and the line loss of the power grid is greatly reduced.