Results 21 to 30 of about 1,393,588 (288)
A microgrid frequency control method based on fuzzy single neuron adaptive PI control
电力工程技术, 2022 In traditional microgrid with droop control,the bus frequency decreases with the increase of load,and a corresponding frequency regulation control strategy is taken to keep frequency around the rated value.
LU Kaicheng, LIU Kaicheng, DONG Shufeng
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Generalized hierarchical control [PDF]
Autonomous Robots, 2015 Multi-objective control systems for complex robots usually have to handle multiple prioritized tasks. Most existing hierarchical control techniques handle either strict task priorities by using null-space projectors or a sequence of quadratic programs; or non strict task priorities by using a weighting strategy.
Liu, Mingxing +2 more
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A Diffie-Hellman based key management scheme for hierarchical access control [PDF]
, 2005 All organizations share data in a carefully managed fashion\ud by using access control mechanisms. We focus on enforcing access control by encrypting the data and managing the encryption keys.
Doumen, Jeroen +3 more
core +11 more sources
Multi-terminal dc grid overall control with modular multilevel converters
Записки Горного института, 2020 This paper presents a control philosophy for multiterminal DC grids, which are embedded in the main AC grid. DC transmission lines maintain higher power flow at longer distances compared with AC lines. The voltage losses are also much lower.
Miguel Jiménez Carrizosa +4 more
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, 2020 Theories of political accountability typically focus on voter-politician relationships. However, overall government performance depends on both elected politicians and unelected bureaucrats. Politicians are agents of voters while serving as principals to bureaucrats.
Greg Sasso, Ian R Turner, Christopher Li
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Coordinated active and reactive power control for overvoltage mitigation in physical LV microgrids
The Journal of Engineering, 2019 The share of photovoltaic (PV) systems in the distribution networks is rapidly growing, leading to the common issue of overvoltage at the end of distribution feeders during the periods when peak generation is surplus to consumption.
Tam T. Mai +3 more
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An error-controlled methodology for approximate hierarchical symbolic analysis [PDF]
, 2000 Limitations of existing approaches for symbolic analysis of large analog circuits are discussed. To address their solution, a new methodology for hierarchical symbolic analysis is introduced.
Fernández Fernández, Francisco Vidal +4 more
core +1 more source
Applied Sciences, 2020 The current paradigm in integrating intermittent renewable energy sources into microgrids presents various technical challenges in terms of reliable operation and control.
Ronald Jackson +6 more
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Control of hierarchical polymer mechanics with bioinspired metal-coordination dynamics. [PDF]
, 2015 In conventional polymer materials, mechanical performance is traditionally engineered via material structure, using motifs such as polymer molecular weight, polymer branching, or block copolymer design.
Barrett, Devin G +7 more
core +2 more sources
Energies, 2019 To improve the power grid adaptability and low voltage ride-through (LVRT) capability of hydraulic wind turbines (HWT), an LVRT control method based on hierarchical control is proposed for the energy regulation of HWT.
Chao Ai +4 more
doaj +1 more source