An efficient multilevel interconnect control algorithm in AC/DC micro-grids using hybrid energy storage system

Sepehrzad, Reza; Hassanzadeh, Mohammad Esmaeil; Seifi, Ali Reza; Mazinani, Mahnaz

doi:10.1016/j.epsr.2020.106869

Cited by 25 publications

(6 citation statements)

References 28 publications

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“…These methods cover system load and competitors' capacity. In [10], a control configuration in a hybrid AC/DC MG with hybrid energy storage system (HESS) units was presented to control the power, voltage and stability of the grid. By dividing the utility grid into downstream (including PV, converter, and battery) and upstream (including various three-phase and single-phase loads, distributed generators and HESS units) grids and applying the droop control structure and synchronization of injected power of HESS and SOC, power, voltage and grid stability were controlled effectively in different modes.…”

Section: B Literature Reviewmentioning

confidence: 99%

Game Theory-Based Bidding Strategy in the Three-Level Optimal Operation of an Aggregated Microgrid in an Oligopoly Market

et al. 2022

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This paper proposes a new framework for the optimal operation of a microgrid aggregator (MGA) that participates in an oligopoly electricity market. This aggregator obtains an optimal bidding (power and price) strategy for a multigrid (MG) system, i.e., a community MG. Consequently, the granted quantity, i.e., power in the electricity market, is deployed to optimally schedule the MG's resources to meet demand. As such, as per three-level optimization, the independent system operator (ISO) clears the market with the goal of maximizing the social welfare in the first stage and determining the hourly market price as well as players' credited power. In the second-level optimization process, the players select the optimal coefficient supply function equilibrium according to the power granted from the market. In third-level optimization, an optimal scheduling for MGs' resources and demand would be obtained according to the won power in the market to maximize the aggregator profit. In addition, a price-taker MGA is simulated for comparison with the price-maker MGA to highlight the advantage of the proposed technique. Furthermore, a bidding strategy based on game theory is proposed to obtain the optimal price and power of the oligopoly market players and maximize all players' profits. Finally, a test system including three generators is created to evaluate the performance of the devised bidding strategy. The results show that the proposed bidding strategy can optimally calculate the focal point of the Nash equilibrium (NE) in the oligopoly electricity market.INDEX TERMS game theory, microgrid operations, oligopoly, optimization, bidding I. INTRODUCTION A. OPERATION OF THE MICROGRID

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Section: B Literature Reviewmentioning

confidence: 99%

Game Theory-Based Bidding Strategy in the Three-Level Optimal Operation of an Aggregated Microgrid in an Oligopoly Market

et al. 2022

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“…Most commonly the demand for the MLIs is gradually increasing with the power conversion process i.e., from Direct Current (DC) -(AC) Alternating Current, DC-DC & AC-DC, and along with the applications like AC motor drives, active capacitive filters, electric vehicles, uninterrupted power supplies, etc. [2]. These types of MLIs provide a step voltage wave at the output and employ several DC sources with a power semiconductor interface, consisting of several switches [3].…”

Section: Introductionmentioning

confidence: 99%

Computerised Gate Firing Control for 17-Level MLI using Staircase PWM

Geetha¹,

Vijayabhasker²,

Suresh³

2023

Computer Systems Science and Engineering

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A basic 7-level MLI topology is developed and the same is extended to the 9-level then further increased to 17-levels. The developed structure minimizes the component's count and size to draw out the system economy. Despite the various advantages of MLIs, efficiency and reliability play a major role since the usage of components is higher for getting a low Total Harmonics Distortion (THD) value. This becomes a major challenge incorporated in boosting the efficiency without affecting the THD value. Various parametric observations are done and realized for the designed 9-level and 17-level MLI, being the Total Standing Voltage (TSV), efficiency, cost function per level count, and power loss. The respective parameters are compared with several existing and modern circuits and found to be effective in their performance. A novel single-phase 17-level asymmetrical Multi-Level Inverter (MLI) topology is developed to reduce the number of overall components. The developed topology generates 17-levels by using unequal DC sources. The developed MLI is proved under various tests conducted experimentally for the various loads like resistive, inductive, and combinational loads. A detailed comparison is done on several factors and represented graphically represented. Further, the proposed design provides a less TSV value is 6 V dc , efficiency is 94.21% and cost factor per level CF/L value for both values of α is 2.01 and 2.05 and devices count with a low THD value 41.4% with respectively.

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“…In order to deeply study and solve the problem of control strategy of hybrid energy storage system, one literature regarded the vehicle system as a micro-grid system, with fuel cell power system as the main power source and battery as the auxiliary power source, and the main role of the battery is to absorb the fluctuating power. The literature [2] studied the energy storage technology of micro-grid containing battery, but due to the simple structure of the battery in it, the storage system is single, which leads to the complicated control of charging and discharging. The literature [3][4][5] proposed new methods and ideas for the topology of hybrid energy storage system, which makes the PV power generation unit work in the most ideal state by changing the position and connection of the converter in the system.…”

Section: Introductionmentioning

confidence: 99%

A coordinated control strategy based on Photovoltaic-hybrid energy storage system

Wang

Zou

2021

E3S Web Conf.

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Photovoltaic power generation is changing day by day, but its system has drawbacks. To compensate for the shortcomings of PV power generation system, the micro-grid system of PV power generation with HES is constructed by using the complementary characteristics of battery and supercapacitor. On the basis of this, we introduce a fuzzy control to realize the fast response of hybrid energy system. A micro-grid model is built based on Matlab/Simulink to verify the feasibility and rationality of the proposed control strategy.

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An efficient multilevel interconnect control algorithm in AC/DC micro-grids using hybrid energy storage system

Cited by 25 publications

References 28 publications

Game Theory-Based Bidding Strategy in the Three-Level Optimal Operation of an Aggregated Microgrid in an Oligopoly Market

Game Theory-Based Bidding Strategy in the Three-Level Optimal Operation of an Aggregated Microgrid in an Oligopoly Market

Computerised Gate Firing Control for 17-Level MLI using Staircase PWM

A coordinated control strategy based on Photovoltaic-hybrid energy storage system

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