Array (Dec 2022)
System and methods for wireless power transfer scheduling in a wireless power transfer network
Abstract
A transmitter in a wireless power transfer network (WPTN) needs to deliver wireless power to a number of wireless power receiver. There can be diverse set of wireless power receivers, for example, Internet of Things devices, smart phones, laptops, etc. The wireless power requirements for receivers vary depending upon their type and state. Commercially deployed WPTNs may also have different subscription plans for users, hence each user’s device should receive wireless power transfer (WPT) service based on the subscribed plan. Usually, a transmitter has to provide service to a number of receivers. Hence, the transmitter needs to have a WPT scheduling method for WPT service delivery. The challenges associated with WPT delivery in a WPTN require a scheduling method that possess the following characteristics: a generalized scheduling method that can work in a setting comprising of heterogeneous receivers, and a scheduling method that can deliver prioritize WPT service, however at the same time it should avoid starvation of lower priority WPT requests. Here, a system and methods for WPT service scheduling are presented. The presented methods possess the above stated characteristics. One of the methods focuses on enhancing a WPT system’s throughput and the other focuses on a receiver device’s remaining charging time. Moreover, both methods avoid starvation of low-priority requests. The presented methods are compared with an existing method, and simulation results demonstrate effectiveness and usefulness of the presented methods.
