Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"differential power processing"”.
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Differential power processing for series-stacked processors
… architecture provides a method to increase power delivery efficiency to multiple processors. With a series-stack, differential power processing (DPP) is needed to ensure that processor voltages remain within design limits as the individual loads vary. This work demonstrates a …
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Sub-module differential power processing for photovoltaic applications
… prohibitive cost and low energy output. Advanced power electronics design plays a critical role in reducing the cost of PV energy systems and improving the power output. Conventional distributed power electronics solutions in a PV system such as DC optimizer and micro-inverters have been …
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Differential power processing for increased solar array energy harvest
The integration of power electronics in series-connected photovoltaics (PV) has provided a new approach to handling the well-known current mismatch problem. One such technique, known as differential power processing (DPP), has demonstrated high efficiency mismatch handling, as well as scalability, …
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Light-load power management in differential power processing systems
This Dissertation was approved for publication on 2020-04-03 at 15:58.
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Asynchronous differential power processing for true maximum power point tracking of photovoltaic sub-modules
This thesis examines maximum power point tracking (MPPT) at the photovoltaic (PV) sub-module level, but in the context of large arrays. Central communication carries large overheads, and neighbor-to-neighbor communication can have long propagation times in large arrays, so a communication-less …
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Voltage regulation of a series stacked system of digital loads by differential power processing
… multi-core microprocessor has very stringent power supply requirements. It can draw hundreds of amperes of current at supply voltages as low as 0.8 V. As the supply voltages keep decreasing, the power delivery to meet the supply requirements is becoming increasingly difficult and inefficient. …
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Improving performance, efficiency, and reliability of DC-DC conversion systems by differential power processing
… examines several circuit-based techniques and power conversion architectures that meet system objectives while only processing a small portion of the total energy. To take the performance capabilities of conventional dc-dc converters beyond their physical limits, the converters must be …
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Voltage regulation of a series stacked system of digital loads by differential power processing
… multi-core microprocessor has very stringent power supply requirements. It can draw hundreds of amperes of current at supply voltages as low as 0.8 V. As the supply voltages keep decreasing, the power delivery to meet the supply requirements is becoming increasingly difficult and inefficient. …
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Improving data center power delivery efficiency and power density with differential power processing and multilevel power converters
Existing data center power delivery architectures consist of many cascaded power conversion stages. The system-level power delivery efficiency decreases each time the requisite power is processed through the individual stages, and the total power converter footprint increases by each cascaded …
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Power management of series connected photovoltaic sub-modules using the element-to-virtual bus differential power processing architecture
State-of-the-art solutions to photovoltaic power management track the maximum power of a solar installation at the cost of processing 100% of this generated power. Differential power processing (DPP) has demonstrated maximum power point tracking (MPPT) of a photovoltaic system by processing a small …
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A regulated series-connected power delivery architecture for server clusters in highly efficient datacenters
The series-connected power delivery architecture is an essentially lossless way to deliver power directly from a high voltage bus to a number of low-voltage loads. The benefts of this architecture can be combined with voltage regulation of individual nodes through a technique known as differential …
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A series-stacked power delivery architecture with isolated converters for energy efficient data centers
… in our energy limited world and therefore both power distribution and conversion methods for future data centers need to be reconsidered. In this thesis, alternative methods to achieve more power efficient DC power distribution and voltage regulation for future data centers are investigated. The …
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A series-stacked architecture with isolated server-to-bus converters for high-efficiency data center power delivery
Series-stacked server power delivery architectures have been proposed recently that can achieve much higher energy efficiency than conventional power delivery architectures. When servers are connected in series, differential power processing (DPP) converters can be used to regulate the server …
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Power processing and active protection for photovoltaic energy extraction
Solar photovoltaic power generation is a promising clean and renewable energy technology that can draw upon the planet's most abundant power source - the sun. However, relatively high levelized cost of energy (LCOE), the ratio of the total cost of ownership to the total energy extracted over the …
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Fault detection and isolation in switched linear systems and applications
… applying it to a photovoltaic (PV) system with differential power processing (DPP) converters. Our simulation results confirmed the fact that an FDI filter can detect and pinpoint multiple faults which can simultaneously affect a system. Finally, we experimentally demonstrate the feasibility of …
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Engineering economic analysis of solar PV installations considering power conversion alternatives
Solar photovoltaic (PV) is increasing in capacity and availability throughout the United States each year. The value of solar, defined as the present value of future cash flows from a solar installation, is a useful metric which can help potential system owners understand the financial implications …