This document provides updates to IEEE Std 802.16's MIB for the MAC, PHY and asso- ciated management procedures in order to accommodate recent extensions to the standard.

IEEE Standard for Local and Metropolitan Area Networks Part 16: Air Interface for Fixed Broadband Wireless Access Systems Draft Amendment: Management Information Base Extensions

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Power Electronics Converters Applications And Design

Clean and environment-friendly energy harvesting are of prime interest today as it is one of the key enablers in achieving the Sustainable Development Goals (SDGs) as well as accelerates social progress and enhances living standards. India, the second-most populous nation with a population of 1.353 billion, is one of the largest consumers of fossil fuels in the world which is responsible for global warming. An ever-increasing population is projected until 2050, and consequently, the energy demand in the upcoming decades will be co-accelerated by the rapid industrial growth. The Ministry of New and Renewable Energy (MNRE) with the support of National Institution for Transforming India (NITI) Aayog is working to achieve the Indian Government's target of attaining 175 GW through renewable energy resources. Many Indian states are currently increasing their renewable energy capacity in an objective to meet future energy demand. The review paper discusses in-depth about the three Indian states, namely Karnataka, Gujarat, Tamil Nadu, which pioneers the renewable energy production in India. The global energy scenario was discussed in detail with Indian contrast. Further, the barriers to the development of renewable energy generation and policies of the Indian government are discussed in detail to promote renewable energy generation throughout India as well as globally since the challenges are similar for other nations. This study analyzed various prospects of the country in renewable energy which has been done in a purpose to help the scholars, researchers, and policymakers of the nation, as it gives an insight into the present renewable energy scenario of the country.

/pdf/a-comprehensive-review-on-renewable-energy-development-1ec239x6fp.pdf

A Comprehensive Review on Renewable Energy Development, Challenges, and Policies of Leading Indian States With an International Perspective

https://vbn.aau.dk/ws/files/206009396/Correction.pdf

Practical operation strategies for pumped hydroelectric energy storage (PHES) utilising electricity price arbitrage

Experimental validation of a real time energy management system for microgrids in islanded mode using a local day-ahead electricity market and MINLP

The main challenge for DC distribution system is the lack of a good protection system. In this paper a ring type DC microgrid is considered. Upon fault in the grid, the existing system shut down the entire grid. A new protection algorithm is proposed which isolates only the faulted section, without the entire grid shut down. The algorithm senses the fault using differential current and then current derivative is taken for segment isolation. The proposed algorithm is verified using Simulink/MATLAB.

Protection of a low-voltage DC ring microgrid system

DC microgrid is gaining more prominence due to the development of renewable resources that generate DC output and also due to the increasing use of DC in end-user equipments. Also with DC system, connection of backup energy storage and small size generation is easier to realize. For any system, disconnecting a part of the system during temporary faults is uneconomical and might lead to network instabilities. To overcome this, the system must possess Fault Ride Through (FRT) capability. FRT is the ability of the system to remain connected during faults. In this paper, FRT for DC ring bus micro-grid system is achieved for temporary faults. After the occurrence of a fault, the system will ride through the fault until a predefined time period is exceeded. When the predefined time period is exceeded, the system classifies the fault as a permanent fault and the system is isolated. The FRT is achieved by supplying a limited amount of current to the fault using Fault Current Limiters (FCL) working with the proposed algorithm.

Fault Ride Through for a DC ring bus microgrid

This paper develops optimal bidding strategy for operating multi-unit pumped storage power plant in day-ahead electricity market. Based on forecasted hourly market clearing price, a multistage looping algorithm to maximize the profit of multi-unit pumped storage plant is developed considering both spinning and non-spinning reserve bids and meeting the technical operating constraints. The proposed model is adaptive for the nonlinear three-dimensional relationship between the power produced, the energy stored, and the head of the associated reservoir. Evolutionary tristate particle swarm optimization (ETPSO) based approach is also proposed to solve the same problem, combining basic particle swarm optimization (PSO) with tri-state coding technique and mutation operation. The discrete characteristic of a pumped storage plant is modeled using tri-state coding technique and genetics based mutation operation is used for faster convergence in getting global optimum. The proposed approaches are applied with an actual utility consisting of four units. Experimental results for different operating cycles of the storage plant indicate the attractive properties of the ETPSO approach in a practical application, namely, a highly optimal solution and robust convergence behaviour.

Optimal bidding strategy for multi-unit pumped storage plant in pool-based electricity market using evolutionary tristate PSO

This paper develops bidding strategy for operating pumped storage power plant in a combined pool-bilateral market. 1 / 0 /−1 mixed-integer programming model to account discrete tri-state operation of pumped storage plant is developed and multi-looping sequential optimization approach is used to solve the problem. Considering realistic case study, operating strategies for the pumped storage plant are evaluated. Operating pumped storage plant in an electricity market can lead to significant changes in the consumer and producer surplus, energy prices and market efficiency. This paper investigates how integration of pumped storage energy trade affects the net welfare of electricity market.

Pumped storage bidding and its impacts in combined pool-bilateral market

Maximum power point tracking is a method to trap maximum available power from a solar panel. Many algorithms have been developed based on the characteristics of solar panel in order to utilize maximum available power. But these algorithms do not consider local maxima and minima in the solar panel characteristics caused due to shading. In this paper an enhanced version of Perturb and Observe maximum power point tracking algorithm is explained which also considers local maxima and minima caused by shading and makes the solar panel to work at its peak maxima. This helps in improving the overall efficiency of the system. Algorithm is implemented on 50W solar panel using ATMega 8 microcontroller and a boost converter.

P. Kanakasabapathy

Papers

Protection of a low-voltage DC ring microgrid system

Fault Ride Through for a DC ring bus microgrid

Optimal bidding strategy for multi-unit pumped storage plant in pool-based electricity market using evolutionary tristate PSO

Pumped storage bidding and its impacts in combined pool-bilateral market

Implementation of enhanced perturb and observe maximum power point tracking algorithm to overcome partial shading losses