浅析220V直流系统纹波超标常见原因及防控对策

为防止直流系统纹波系数严重超标对电力系统安全运行造成影响，文章对直流系统纹波超标的危害进行了分析，探讨了引起纹波超标的常见原因主要是：负荷电源问题、测试方法不当、充电模块问题、输入交流电源不合格等，结合生产实际，重点介绍了负荷电源及测试方法不当引起纹波超标原因，针对常见原因提出了防控措施。推荐介绍了实用纹波测试方法和技巧供同行参考，以避免实际测试工作中因测试方法和技巧差异引起纹波波形失真，导致纹波系数超标的情况发生。直流装置投入运行前后均应测试直流电压纹波，以便及时发现问题和解决问题，将直流系统安全隐患消除在萌芽状态。

Analysis on Common Causes of 220V DC Ripple Coefficient Exceeding Standard and Its Countermeasures

To prevent the harmful influence of DC ripp system, the paper analyzes the common causes resulting load power, test method, charging module and AC power le coefficient exceeding standard on safe in ripple coefficient exceeding standard, operation of power including improper supply input etc., and proposes appropriate countermeasures based on the practical production of Dahua general hydropower plant. The practical ripple test methods and tech- niques are recommended for reference to prevent ripple coefficient by using of improper test methods and techniques. The DC voltage DC devices into operation so as to find out and solve the problems in the bud. exceeding standard resulting from wave distortion ripple must be tested before and after putting the timely and eliminate the potential safety problems