Power Converter for Dual-Power PV-Grid Energy System Utilizing Cascaded Multilevel Inverter

2014 ◽  
Vol 925 ◽  
pp. 505-509 ◽  
Author(s):  
Intan Rahayu Ibrahim ◽  
Ahmad Maliki Omar ◽  
Zakaria Hussain
Keyword(s):  
Solar Energy ◽  
Electrical Energy ◽  
Energy System ◽  
Power Converter ◽  
Maximum Power ◽  
Multilevel Inverter ◽  
Grid System ◽  
Peak Period ◽  
Pv Grid ◽  
Dual Power

The dual-power PV-grid system was introduced to manipulate the lower tariff rate at off-peak period and to reduce the capital installation cost of PV energy system. The power converter in the PV energy system is used to process solar energy captured by PV modules into usable electrical energy. In the dual-power PV-grid system, the power converter component is consists of a boost regulator to boost and regulate PV outputs to fixed voltage of 240V, 50Hz, a maximum power point tracker (MPPT) to derive maximum power from PV panels and a three operation modes of the battery converter to regulate charging current/discharging current under various PV output and load variation. In this project, a reduced switch and increased level of cascaded H-bridge multilevel inverter was introduced to convert the direct current (DC) output of the solar energy to alternating current (AC) signal to supply an AC load or to be integrated to the grid system. By adapting selective harmonic elimination (SHE) switching strategy, the inverter produces 21 levels of stepped sinusoidal output signal with resultant total harmonics distortion (THD) of 3.90%.

Dual-Power PV-Grid Energy System - An Alternative to the Off-Grid PV Energy System

2014 ◽  
Vol 960-961 ◽  
pp. 1531-1535
Author(s):  
Intan Rahayu Ibrahim ◽  
Ahmad Maliki Omar ◽  
Zakaria Hussain ◽  
Mohd Najib Mohd Hussain ◽  
Siti Zaliha Mohammad Noor
Keyword(s):  
Energy System ◽  
Grid System ◽  
System Configuration ◽  
Peak Period ◽  
Electricity Bill ◽  
Cost Of Energy ◽  
Pv Grid ◽  
Installation Cost ◽  
Electrical Data ◽  
Dual Power

The Dual-power PV-grid energy system was initiated to reduce the capital installation cost of PV energy system and to make use the lower tariff rate offered at off-peak period. In this paper, the system configuration, architecture and operation of the system are described and discussed. The prototype has been developed and runs 24-hours to supply the load. Meteorological and electrical data collected prove the successful of such system. The system is expected to reduce 89% of electricity bill with estimated cost of energy (COE) of USD1.15/kWh. It is suggested that the dual-power PV-grid system is beneficial to serve as an alternative implementation of the off-grid PV energy system.

Dual-Power PV-Grid Energy System – An Alternative to the Off-Grid PV Energy System

2014 ◽  
Vol 925 ◽  
pp. 661-665
Author(s):  
Intan Rahayu Ibrahim ◽  
Ahmad Maliki Omar ◽  
Zakaria Hussain ◽  
Mohd Najib Mohd Hussain ◽  
Siti Zaliha Mohammad Noor
Keyword(s):  
Energy System ◽  
Grid System ◽  
System Configuration ◽  
Peak Period ◽  
Electricity Bill ◽  
Cost Of Energy ◽  
Pv Grid ◽  
Installation Cost ◽  
Electrical Data ◽  
Dual Power

The Dual-power PV-grid energy system was initiated to reduce the capital installation cost of PV energy system and to make use the lower tariff rate offered at off-peak period. In this paper, the system configuration, architecture and operation of the system are described and discussed. The prototype has been developed and runs 24-hours to supply the load. Meteorological and electrical data collected prove the successful of such system. The system is expected to reduce 89% of electricity bill with estimated cost of energy (COE) of USD1.15/kWh. It is suggested that the dual-power PV-grid system is beneficial to serve as an alternative implementation of the off-grid PV energy system.

scholarly journals Solar Energy System Based Impedance-Source Inverter for Grid Connected System

2018 ◽  
Vol 7 (2) ◽  
pp. 129
Author(s):  
S Kamalakkannan ◽  
D. Kirubakaran
Keyword(s):  
Solar System ◽  
Solar Energy ◽  
Rapid Change ◽  
Energy System ◽  
Boost Converter ◽  
Maximum Power ◽  
Grid System ◽  
Maximum Power Point ◽  
Point Tracking ◽  
Power Point

In this work, the fickleness of solar energy can be overcome by using Maximum Power Point Tracking algorithm (MPPT). Perturb and Observation (P&O) MPPT algorithm accomplish fast the maximum power point for rapid change of environmental conditions such as irradiance intensity and temperature. The MPPT algorithm applied to solar system keep the boost converter output constant. Output from boost converter is taken to three phase impedance-source inverter with RL load and grid system. Impedance-source inverter performs the transformation of variable DC output of the solar system in to near sinusoidal AC output. This near sinusoidal AC output consecutively is served to the RL load first and then to grid system. The simulation is carried out in matlab/simulink platform both for RL load and grid system and the simulation results are experimentally validated for RL load arrangement only.

scholarly journals A Research on Power Quality Enhancement and Energy Management of Solar-Wind Hybrid Smart Grid System

2019 ◽  
Vol 9 (1) ◽  
pp. 6868-6870
Keyword(s):  
Solar Wind ◽  
Smart Grid ◽  
Power System ◽  
Power Quality ◽  
Electrical Energy ◽  
Energy System ◽  
Grid System ◽  
Hybrid Renewable Energy System ◽  
Smart Grid System ◽  
Micro Grids

A solar-wind hybrid system plays a key role in power generation and becomes very important role to smart grid power systems. Also, the wind-solar hybrid energy storage control systems in coordination of energy markets, made economical to the electrical power system power system. Hybrid renewable energy system connected micro-grid consists of significant identification; in view of solve the rising electrical energy demand. In addition to this the problem of harmonic distortion in micro-grids due to the non-linear loads is an indispensable topic of study. Also, it is very significant for the better understanding of the power quality impacts in micro-grids. This paper presents detail analysis of different control techniques for optimization of harmonics in smart grid system and enhancement in power quality of the smart grid system. The performance of the control system is verified through the MATLAB simulation of the hybrid solar-wind electrical energy system.

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