Power Conversion

DTI's universal high frequency power converter architecture can be used for a wide range of applications requiring AC-to-DC and DC-to-DC power conversion. The higher control bandwidth provided by high frequency switching allows the output power to be highly regulated into nonlinear and transient loads. This technology can also be applied to variable frequency power converters, such as those needed for synchronous AC motor drives, where high reliability and low acoustic noise emission are of the utmost importance. Scaling this technology to higher voltage (tens of kV) and higher power (MWs) opens entirely new applications such as DC-to-DC converters for high voltage DC undersea networks, power conditioning systems for driving pulsed power systems, and high speed utility switching.

Below is a list of publications relating to DTI's Power Conversion technology and its applications.

Subsea MVDC Power Distribution - A two page color data sheet describing DTI's MVDC Conversion & Transmission System which allows high frequency switching directly at 10 kVDC levels, making MVDC transmission and integration onto the grid efficient and cost effective.

Power Conversion - A two page color data sheet describing DTI's high frequency weapons power converter, and hot-swappable modular power converter system.

Solid-State DC Circuit Breakers - A two page color data sheet describing DTI's solid-state opening and closing switches employed r DC circuit breakers.

Undersea Medium Voltage DC (MVDC) Power Distribution System (2016) - A five page paper describing DTI's design of a high frequency DC-to-DC converter which takes MVDC from a shore station and down converts it to 375 VDC to power low voltage electronics on the ocean floor. This paper was presented at the 2016 American Society of Naval Engineers Day. (790 kb)

Components of Heating and Fueling of Fusion Plasmas (2013) - A four page paper describing DTI's efforts to design a 'Buck Matrix' modulator, intended to power and protect gyrotrons from arcing in next generation fusion facilities. Presented at the 2013 IEEE International Pulsed Power & Plasma Science Conference. (1.06 MB)

Solid State Circuit Breakers for Medium Voltage DC (MVDC) Power (2011) - A four page paper describing DTI's design of a rugged, efficient and compact solid-state 10-20 kV Medium Voltage DC circuit breaker. This paper was presented at the 2011 Electric Ship Technologies Symposium. (402 kb)

Solid State High Frequency Power Converters (2003) - A five page paper describing DTI's design of a compact, high frequency (60 Hz -400 Hz) solid state power conversion switch for use in several defense applications. (108 kb). This paper was presented at PES 2003.

Solid State High Voltage DC Power Distribution & Control (1999)-An eight page technical paper describing how high power, solid-state DC switches can provide lower cost, more efficient power distribution than traditional methods. A scenario for large scale power distribution to klystrons is presented. (948 kb)

A Solid State Switch for 13.8 kV Power Distribution (1999) - A ten page paper describing the application of DTI's high voltage switching technology to utility power distribution. (289 kb)