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This paper proposes a general method of sizing the inverter for a PV system. The method evaluates effects of PV incentive policies, inverter efficiency curves, and inverter protection schemes on optimum inverter sizing through system-level cost analysis. Specifically, different scenarios of PV incentives are discussed and compared to show that the optimal inverter size varies notably by location and...
In this paper, we propose a novel min cut based algorithm for multiple supply voltage assignment under timing constraints. Different with the traditional sensitivity based methods which focus on how to make full use of the slacks of non-critical gates, the proposed algorithm concentrates on critical gates. The circuit is initialized in the lowest power level, then the length of critical paths is tried...
The technique of multiple supply voltages and dynamic frequency has been explored as a possible energy-efficient strategy in CMOS circuits. In this paper, we consider the technique in the scheduling process which is the keys of high level synthesis. Given a schedule, a novel method is presented for the frequency assignment. The objective is to decrease the energy consumption as much as possible without...
Scaling frequency and voltage in a coordinated manner is a promising way to reduce energy and power. we explore the use of dynamic frequency clocking within the datapath and datapath scheduling algorithms that can be incorporated into a datapath synthesis tool. Given a schedule, we propose a practical optimal frequency assignment algorithm based on dynamic programming. The algorithm run very fast...
State class methods are a fundamental and most widely applied technique for timing analysis of Time Petri Nets (TPNs). However, the existing state class methods are not suitable for the computation of global time delay, which is an important issue for real-time systems. This paper presents a state class method for the analysis and verification of global time properties in TPNs that addresses the problem...
This paper investigates the time behavior of over-irradiance events in which the photovoltaic (PV) array outputs more power than the rated power of the inverter. A new dynamic interpretation of such events is proposed and is compared to the conventional static viewpoint. Facts revealed under such dynamic view may lead to new guidelines for system integrators and inverter designers in both sizing and...
As technology advances, 3-D ICs can significantly alleviate the interconnect problem coming with the decreasing of feature size and are promising for heterogeneous integration. In 3-D ICs, one of the key challenges is the vertical technology, using through-silicon via (TSV) for different device layers connection. In this paper, by noticing the TSV assignment comes under the influence of the whitespace...
Implementation of floating-point arithmetic functions is an essential task in high-level synthesis (HLS). However, most of the existing HLS EDA tools cannot well synthesize floating-point functions. In this paper, we present an automatic method to implement general floating-point functions using piecewise polynomial approximation. Based on the proposed hardware architecture, our method achieves compact...
With the development of high rate data transmission technology via distribution line communication, the electric power, data, voice and video can be transferred in the same electric power distribution network, and the technology will be put in operation widely in the future. However the traditional technology of power line communication is not adaptable to the complex and harsh environment of distribution...
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