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In the integration of photovoltaics (PV) with the power grids, battery energy storage systems (BESS) are often adopted to buffer the intermittent solar power. For the PV-battery combination, the capacity of the BESS increases with the scale of PV integration, which increases the cost. In this paper, a PV-embedded series DC electric spring (PVES), which is a new combination of non-critical load, PV,...
Reactive power optimization is a nonlinear, multivariable, multi-constrained programming problem, which makes the optimization process complicated. In this paper, based on the characteristics of reactive power optimization, a mathematical model of reactive power optimization, including comprehensive consideration of the practical constraints and reactive power regulation means for optimization, is...
This paper deals with lifetime maximization for energy constrained wireless networks with inter-session network coding. The problem of lifetime maximization is first formulated, and then transformed into a linear programming problem. Using Lagrangian dual decomposition, it is further converted into a dual problem that consists of two subproblems: lifetime optimization and network optimization, and...
When design complex product like electrohydrostatic actuator (EHA), all of the experts from different disciplines need to co-design and cooperate. Design variables in different disciplines couple together and affect the object functions, constraint condition. This article use multidisciplinary design optimization (MDO) method - collaborative optimization (CO) to design and optimize EHA. When performing...
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