Results 21 to 30 of about 19,341,979 (231)
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
doaj +1 more source
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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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
doaj +1 more source
, 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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Review of hierarchical control strategies for DC microgrid
IET Renewable Power Generation, 2020 This work presents an extensive review of hierarchical control strategies that provide effective and robust control for a DC microgrid. DC microgrid is an efficient, scalable and reliable solution for electrification in remote areas and needs a reliable ...
A. Abhishek +5 more
semanticscholar +1 more source
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
doaj +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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A field study of team working in a new human supervisory control system [PDF]
, 2000 This paper presents a case study of an investigation into team behaviour in an energy distribution company. The main aim was to investigate the impact of major changes in the company on system performance, comprising human and technical elements. A socio-
ACKOFF R. L. +25 more
core +1 more source
Hierarchical Control for Virtual Oscillator Based Grid-Connected and Islanded Microgrids
IEEE transactions on power electronics, 2020 Virtual oscillator control (VOC) is a nonlinear time domain controller that achieves significantly faster primary control response in islanded microgrids, compared to droop or virtual synchronous machine (VSM) control.
M. Awal +4 more
semanticscholar +1 more source
Enhanced Microgrid Power Flow Incorporating Hierarchical Control [PDF]
IEEE Transactions on Power Systems, 2020 An enhanced microgrid power flow (EMPF) is devised to incorporate hierarchical control effects. The new contributions are threefold: 1) an advanced-hierarchical-control-based Newton approach is established to accurately assess power sharing and voltage ...
Fei Feng, Peng Zhang
semanticscholar +1 more source