scholarly journals Optimal Economic Operation of Islanded Microgrid by Using a Modified PSO Algorithm

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Yiwei Ma ◽  
Ping Yang ◽  
Zhuoli Zhao ◽  
Yuewu Wang
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Dynamic Optimization ◽  
Storage System ◽  
Optimization Strategy ◽  
Battery Storage ◽  
Diesel Generator ◽  
Economic Operation ◽  
Islanded Microgrid

An optimal economic operation method is presented to attain a joint-optimization of cost reduction and operation strategy for islanded microgrid, which includes renewable energy source, the diesel generator, and battery storage system. The optimization objective is to minimize the overall generating cost involving depreciation cost, operation cost, emission cost, and economic subsidy available for renewable energy source, while satisfying various equality and inequality constraints. A novel dynamic optimization process is proposed based on two different operation control modes where diesel generator or battery storage acts as the master unit to maintain the system frequency and voltage stability, and a modified particle swarm optimization algorithm is applied to get faster solution to the practical economic operation problem of islanded microgrid. With the example system of an actual islanded microgrid in Dongao Island, China, the proposed models, dynamic optimization strategy, and solution algorithm are verified and the influences of different operation strategies and optimization algorithms on the economic operation are discussed. The results achieved demonstrate the effectiveness and feasibility of the proposed method.

Techno-Economic Performance Evaluation and Enhancement for a PV – Diesel Hybrid System

2016 ◽  
Vol 839 ◽  
pp. 130-135
Author(s):  
Ivan Tendo ◽  
Chatchai Sirisamphanwong
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Energy Demand ◽  
Storage System ◽  
System Size ◽  
Performance Ratio ◽  
Optimal Size ◽  
Battery Storage ◽  
Diesel Generator ◽  
Energy Fraction

In this research paper, an illustration for system size optimization for a stand-alone PV – diesel hybrid system is obtained. The requirement is to obtain an optimal size that can meet energy demand at an optimized cost for a given lifetime period of the project, this will be achieved using HOMER software to further improve the system parameters like performance ratio, renewable energy fraction, MATLAB will be used. This research study will be done basing on a system currently installed at the School of Renewable Energy, Naresuan University (SERT), this system has a capacity of 120 kW, and it is a hybrid system with PV array, Diesel generator and battery storage system. The cost parameters that will be addressed are; - Net present cost (NPC), Cost of Energy (COE), Capital cost (CC). The initial size of the hybrid system is PV-120kW, Diesel generator -100kW and battery storage of 200kWh after modelling and simulation with HOMER software using special models to show the predicted performance of the final outcome, the optimal size created has a PV size of 100kW, diesel generator with a size of 100kW and battery storage of 100kWh and compared to the initial system COE od 1.01$/kWh, the optimal size has a COE of 0.934$/kWh.

scholarly journals DC-bus energy management of a converter-interfaced renewable energy source comprising an energy storage system

2021 ◽  
Author(s):  
Francisco Jesús Matas-Díaz ◽  
Umer Mushtaq ◽  
Andrei Mihai Gross ◽  
Alvaro Rodríguez del Noza ◽  
Milos Cvetkovic ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Energy Management ◽  
Storage System ◽  
Energy Storage System ◽  
Ancillary Services ◽  
Voltage Source ◽  
Dc Bus

The increasing penetration of renewable energy sources is strongly linked to the development of voltage source converters used in their connection to the grid. As a result, in the near future of an inverter-dominated power system it will be a requirement for renewable generation to provide ancillary services in order to compensate for the absence of synchronous generation. In this scenario, the use of energy storage systems along with advanced control algorithms mimicking the dynamic behaviour of the traditional generators will be of utmost importance. This paper deals with a renewable energy source interfaced with a voltage source converter and comprising an energy storage system in the DC bus. Particularly, a new energy management algorithm for the DC-bus based on a three levels hierarchical control is proposed, which is able to simultaneously provide ancillary services, maintain the state of charge of the storage system within the permissible limits and use it to control the DC bus voltage. The control strategy is validated experimentally using a prototype with results evidencing a reliable and stable operation.

scholarly journals DC-bus energy management of a converter-interfaced renewable energy source comprising an energy storage system

2021 ◽  
Author(s):  
Francisco Jesus Matas-Diaz ◽  
Umer Mushtaq ◽  
Andrei Mihai Gross ◽  
Alvaro Rodriguez del Nozal ◽  
Milos Cvetkovic ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Energy Management ◽  
Storage System ◽  
Energy Storage System ◽  
Dc Bus

scholarly journals DC-bus energy management of a converter-interfaced renewable energy source comprising an energy storage system

2021 ◽  
Author(s):  
Francisco Jesús Matas-Díaz ◽  
Umer Mushtaq ◽  
Andrei Mihai Gross ◽  
Alvaro Rodríguez del Noza ◽  
Milos Cvetkovic ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Energy Management ◽  
Storage System ◽  
Energy Storage System ◽  
Ancillary Services ◽  
Voltage Source ◽  
Dc Bus

The increasing penetration of renewable energy sources is strongly linked to the development of voltage source converters used in their connection to the grid. As a result, in the near future of an inverter-dominated power system it will be a requirement for renewable generation to provide ancillary services in order to compensate for the absence of synchronous generation. In this scenario, the use of energy storage systems along with advanced control algorithms mimicking the dynamic behaviour of the traditional generators will be of utmost importance. This paper deals with a renewable energy source interfaced with a voltage source converter and comprising an energy storage system in the DC bus. Particularly, a new energy management algorithm for the DC-bus based on a three levels hierarchical control is proposed, which is able to simultaneously provide ancillary services, maintain the state of charge of the storage system within the permissible limits and use it to control the DC bus voltage. The control strategy is validated experimentally using a prototype with results evidencing a reliable and stable operation.

Utilization of pomegranate waste-peel as a novel substrate for biodiesel production by Bacillus cereus (MF908505)

2020 ◽  
Vol 4 (3) ◽  
pp. 1199-1207
Author(s):  
Amruta P. Kanakdande ◽  
Chandrahasya N. Khobragade ◽  
Rajaram S. Mane
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Bacillus Cereus ◽  
Fossil Fuels ◽  
Biodiesel Production ◽  
Energy Needs

The continuous rising demands and fluctuations in the prices of fossil fuels warrant searching for an alternative renewable energy source to manage the energy needs.

Sign in / Sign up

Export Citation Format

Share Document