It is necessary to monitor and analyze PQ (Power Quality) firstly in order to solve the PQ problems in power system, then the possible reforming project can be put forward for improving power supply quality.

• 摘要解决电力系统的电能质量问题，首先需要对电能质量的各项指标进行全面的监测和分析，在此基础上才能有针对性地改善电能质量。