全电压等级电压质量诊断分析策略研究

Research on Power Quality Diagnosis and Analysis of All Classifications of Voltage

通过研究电压调整的基本原理,得出影响电压质量的主要因素,重点分析了变压器无功消耗与线路无功消耗对电压偏差的影响的量化计算。研究地区220k V层级、110k V层级、10k V层级、低压层级的电压质量分析方法,建立全电压诊断分析策略,得出分析电力设备电压越限主要原因的方法。最后通过实例分析,说明如何通过分析电压监测数据,找出造成电力设备电压越限的主要因素。

According to the voltage modulation theory, the influence factors of voltage quality are found. The reactive power consumption of transformers and lines that thought to be related to the voltage is considered. The methods of all classifications voltage quality is researched, including 220 k V, 110 kV, 10 kV and low voltage. Moreover, the analysis reasons caused the voltages off-limit is established. At last, the real data of some power supply bureau is analyzed to explain how to find the reasons of voltage off-limit transformers.