Realization of an Energy Magazine via Supply Side Sequencing
Abstract
Across future deployment, every sailor, vessel, vehicle, aircraft, weapons system, defense network and command post will require gre,at energy draw. Within the era of weaponized power, both tactical advantage and operational endurance are defined by access to relia,ble, robust and responsive energy. The NAVSEAs naval power & energy system technology development roadmap 2019 (NPES-TDR) reinforce,s this requirement, proclaiming power and energy as the foundation of the kill chain. Akin to the shift from guns to missiles, w,eaponized power technologies create both opportunity and challenge for the future Naval capability. Opportunities include the potent,ial for vessel electrification to untether defense operations from dependence on foreign oil. Yet significant and transformative tec,hnology, organizational and commercial barriers exist. As a first step to facilitating the required future technology transition, po,wer system applications and infrastructure must offer improved flexibility,range and autonomy. In addressing the failure of curren,t power system approaches to meet future Naval requirements, this proposal presents an innovative control architecture, able to sequ,ence performance of both existing and future generation technologies for improved integration, response, and efficiency. This innov,ative architecture provides flexible generation options by permitting units to connect to either the alternating current (AC) or dir,ect current (DC) side of the network. All large power systems contain some portion of both AC and DC load or supply, but very few ge,neration technologies offer the flexibility to transfer generation to either the AC or DC side of the system. Simplistically, legacy, generation can be considered as AC coupled, while future technologies can be considered as DC coupled (high-power DC storage/sensor,/weapons systems). Supply-side sequencing bridges the two approaches, sharing common system connections and components for improved,coordination. The approach permits synchronous (tied to AC network frequency/speed) generation to operate in either a fixed or varia,ble speed mode. The advantages of supply side sequencing extend to: Improved coordination of shared generation assets via centrali,zed control; Improved system survivability, via zonal modular autonomy; Improved peak power output, power density and machine ro,om utilization; Improved generator response, primarily dynamic load acceptance (augmented); Improved generator life via a reductio,n in mechanical stress/wear under load; Improved generation efficiency via improved combustion management; and, Improved renewable, pairing via responsive and dynamic load sharing;Supply side sequencing involves no new hardware, instead adopting a modular and ret,ro-fittable control solution supportive of future naval capability. The approach leverages the ability of actively switched semicond,uctor devices (power converter interfaces) to pair nonmatching parts of the system for finer control while providing faster and more, responsive load balancing, power routing and transient response.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 08, 2022
- Source ID
- N629092212018
Entities
People
- Michael Negnevitsky
Organizations
- Office of Naval Research
- United States Navy
- University of Tasmania