Voltage quality treatment method and device

The invention discloses a voltage quality treatment method and device, and the method comprises the steps: obtaining a first voltage amplitude and first data of N first treatment schemes, and calculating a first index corresponding to each first treatment scheme according to the first voltage amplitude and the first data; wherein the first treatment scheme is an alternative voltage quality treatment scheme of the to-be-treated power distribution network line, and the first indexes comprise a voltage amplitude improvement index, a unit load investment index and a treatment time index; n is a positive integer; according to the first index and the N first treatment schemes, generating an optimal treatment scheme; wherein the optimal treatment scheme is the optimal voltage quality treatment scheme of the to-be-treated power distribution network line; and performing voltage quality treatment on the to-be-treated power distribution network line according to the optimal treatment scheme. By adopting the embodiment o