The Influence of Harmonics on Error Stability of Energy Meter Verification Device and Its Suppression MeasuresLei Song, Huan-jun Chen, Yi-na Chen, Yong-jin Xu, Yong-jia Zhou, Chenhui Zhou, Ran Lu, Hai-feng Wang, Li-xin Wang and Xiao-qiong HuangE3S Web Conf., 118 (2019) 02007DOI: https://doi.org/10.1051/e3sconf/201911802007