Aiming at the lack of reactive power compensation resource and the ossified voltage regulation scheme of medium voltage distribution network

a voltage quality regulation and evaluation method of medium voltage busbar which considered the regulation benefit is proposed. Firstly

the differences of each user with the same busbar are fully considered by voltage quality

power consumption and electrical stability

the user priority evaluation indexes are determined

the index weights by improved entropy value method are determined

and the user priority calculation method is designed. Secondly

weighted summation by using the priorities of all users and the improved values of voltage quality after regulation

as a regulation benefit

is used to evaluate the improvement of the users overall voltage quality by a certain control scheme. According to the regulation benefit

many kinds of regulation schemes can be sorted. The example shows that the medium voltage busbar voltage regulation scheme based on this method can utilize the limited regulation resources and means to maximize the overall voltage quality of the users.