Power router cluster system applied to AC and DC hybrid power systems

Abstract

The invention discloses an electric energy router cluster system applied to an alternating-current and direct-current hybrid power system. The electric energy router cluster system takes multiple electric energy router modules and a cluster controller as a core to realize networking connection with external equipment. Each electric energy router module is provided with at least three electric energy ports and has electric energy conversion and electric energy router functions. The external equipment comprises an alternating-current lightning-proof combiner box, a direct-current lightning-proofcombiner box, a plurality of alternating-current / direct-current contactors, an alternating-current power distribution cabinet, a direct-current power distribution cabinet, an alternating-current switch cabinet and a direct-current switch cabinet. The cluster system controller is in information interaction with a metering device, a protecting device and a control device of the electric energy router cluster system. The system can be taken as a virtual 'electric energy router', basic functions including electric energy conversion, transmission route controllable optimization, transmission capacity controllable distribution and the like of the electric energy router are achieved, equipment cost can be effectively reduced, equipment energy efficiency, networking flexibility and energy systemreliability are effectively improved, and simplicity and easiness in implementation are realized.

Description

technical field [0001] The invention relates to the technical field of power electronic equipment, in particular to a power router cluster system applied to an AC-DC hybrid power system. Background technique [0002] At present, because power electronics technology is still in the development stage, power routers based on power electronics conversion are at a disadvantage compared with traditional power equipment (such as industrial frequency transformers) in terms of cost, efficiency, and reliability. As far as the power router applied to the AC-DC hybrid power system is concerned, if a centralized solution is adopted, that is, a single high-power power router, its research and development difficulty and cost are often greater than that of multiple devices with the same total capacity; once the centralized solution is in When the equipment is overhauled or damaged, the entire power distribution system will not be able to operate normally, and the reliability cannot be guara...

AI Technical Summary

Problems solved by technology

As far as the power router applied to the AC-DC hybrid power system is concerned, if a centralized solution is adopted, that is, a single high-power power router, its research and development difficulty and cost are often greater than that of multiple devices with the same total capacity; once the centralized solution is in When the equipment is overhauled or damaged, the entire power distribution system will not be able to operate normally, and the reliability cannot be guaranteed; when the load rate of the power router is at a low level, in the centralized solution, the capacity of the power router cannot be effectively utilized, and other Steady-state loss has a negative impact on the high-efficiency operation of the system, and the networking flexibility of the power router cannot be fully utilized

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