BWS-WG smart non negative pressure variable frequency water supply system is developed by Leo based on "Internet plus+Smart City Water Supply" with the purpose of "safety, efficiency, wisdom and friendship". The equipment is composed of intelligent current stabilizing controller, intelligent current stabilizing compensator, intelligent pump of the Internet of Things, intelligent control cabinet, etc., and integrates new generation technologies such as the Internet of Things, cloud computing and mobile Internet to achieve a highly intelligent and networked intelligent safe water supply scheme.