Precise current sharing and decentralized power management schemes based on virtual frequency droop method for LVDC microgrids

2022 ◽  
Vol 136 ◽  
pp. 107708
Author(s):  
Seyed Mohammad Taher ◽  
Seyed Abbas Taher ◽  
Zahra Dehghani Arani ◽  
Josep M. Guerrero
Keyword(s):  
Power Management ◽  
Current Sharing ◽  
Management Schemes

scholarly journals Capacity Limitation Control of Multiple Bi-directional DC-DC Converters for Micro Grid Application

2015 ◽  
Vol 2 (1) ◽  
pp. 61 ◽  
Author(s):  
S. J. Chiang ◽  
Yu-Min Liao ◽  
Ke-Chih Liu
Keyword(s):  
Power Management ◽  
Control Method ◽  
Droop Control ◽  
Control Methods ◽  
Power Capacity ◽  
Capacity Limitation ◽  
Current Sharing ◽  
Parallel Control ◽  
Micro Grid ◽  
Bus Voltage

The micro grid system requires battery for energy storage and power management. In which, the bi-directional DC to DC converter is the key component for maintaining the DC bus voltage and controlling the charge and discharge of the battery with or without grid support. Parallel control of multiple DC to DC converters is a critical technique to enlarge the power capacity. This paper presents two capacity limitation control methods that multiple DC to DC converters can be paralleled with distributed battery banks. The first method is the capacity limitation control with cascaded load current sense needing no control interconnection. The second method is the capacity limitation control with master-slave and cascaded current command limitation. Two methods are presented to solve the limitation of droop control method and active current sharing method respectively, and can be extended without converter number limitation theoretically. Three prototype 240W bidirectional half-bridge DC to DC converters are built and paralleled in this paper. The proposed method is confirmed with some measured results.

Resource Allocation and Power Management Schemes in an LTE-Advanced Femtocell Network

2012 ◽  
Vol E95-B (2) ◽  
pp. 611-614 ◽  
Author(s):  
Byung-Bog LEE ◽  
Jae-Hak YU ◽  
In-Hwan LEE ◽  
Cheol-Sig PYO ◽  
Se-Jin KIM
Keyword(s):  
Resource Allocation ◽  
Power Management ◽  
Lte Advanced ◽  
Femtocell Network ◽  
Management Schemes

scholarly journals Smart Power Management in OIC Countries: A Critical Overview using SWOT-AHP and Hybrid MCDM Analysis

2021 ◽  
Author(s):  
K. Habibul Kabir ◽  
Shafquat Yasar Aurko ◽  
Md. Saifur Rahman
Keyword(s):  
Renewable Energy ◽  
Power Management ◽  
Fossil Fuels ◽  
Developed Countries ◽  
High Tech ◽  
Smart Power ◽  
Energy Mix ◽  
Electrical Grid ◽  
The World ◽  
Management Schemes

A conventional electrical grid mostly depends on the electrical power generated from fossil fuels. However, the pollutants from fossil fuels are the key factors for adverse climate change. Most of the developed countries of the world have already recognized the fact that the energy mix requires to be diversified by incorporating renewable energy. This is especially relevant for many of the member countries of the Organization of Islamic Cooperation (OIC), consisting of 57 countries, whose abundance of fossil fuel reserve indicates that much of their electric power is still generated from fossil fuels. In order to integrate renewable energy sources into the hybrid energy mix, an existing conventional grid needs to undergo drastic changes. Alongside this, the population boom in the OIC member countries has caused higher demand for a steady supply of electricity that the conventional grids have long been struggling to cope with. With a view to solving this multifaceted problem, incorporation of the smart power management schemes is indispensable using a smart electrical grid, where information and communications technology is integrated into its major building blocks. This allows advanced applications of a grid, such as the formation of micro-grids, demand-side management, energy storage, high-tech power electronic converters, etc. As the smart grids are being adopted by many developed countries, it is high time for the OIC member countries to pay due attention to this development, if they have not already done so. This paper explains, with special focus on the OIC member countries, the various smart power management technologies, their operations and applications, and the benefits and challenges. Then it goes on to carry out the Strength-Weakness-Opportunity-Threat with Analytical-Heuristic-Procedure (SWOT-AHP) analysis to evaluate its feasibility of incorporation and the underlying strategies appropriate for its implementation. Furthermore, a Hybrid Multi-Criteria-Decision-Making (MCDM) analysis is performed to evaluate the sequence of the emphasis that should be given on each of the technologies from those available for the smart power management initiative. Finally, the study reinforces the stance by drawing parallels from the UN Sustainable Development Goals (SDG) and highlights the importance of the smart grid in line with the global vision of SDG. This paper aims at assisting the decision-makers in implementing smart power management schemes in the OIC member countries, in particular, and other countries of the world, in general.

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