Modeling, simulation and performance analysis of a grid-tied voltage source inverter based photovoltaic system under balanced and non-linear load conditions

2015 ◽  
Author(s):  
Deepak Kumar
Keyword(s):  
Performance Analysis ◽  
Photovoltaic System ◽  
Voltage Source ◽  
Voltage Source Inverter ◽  
Modeling Simulation ◽  
Linear Load ◽  
Non Linear ◽  
And Performance ◽  
Non Linear Load ◽  
Load Conditions

scholarly journals Solar System Analysis for Different LOADS in Stand-Alone Mode

2021 ◽  
pp. 10-18
Author(s):  
Sanyam Indurkhya ◽  
Shravan Vishwakarma
Keyword(s):  
System Analysis ◽  
Storage System ◽  
Photovoltaic System ◽  
Concept Design ◽  
Small Water ◽  
Distributed Generators ◽  
A Value ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

Distributed generators using environmentally friendly energy sources such as wind, small water and solar energy have become an important part of the future smart grid/micro grid concept. Design of an autonomous photovoltaic system to study the reaction of solar modules to variable irradiation conditions and their effect on loads. The autonomous system must include a battery storage system to handle non-linear load responses on the AC side. And improve the output power of the photovoltaic system using the MPPT algorithm specially designed to drive linear and non-linear loads on stand-alone systems. And causing the system to respond to varying levels of radiation in the environment and achieve an uninterrupted regulated output of the system. The system examined the behavior of linear and non-linear loads with constant irradiation of 1000 wb / m2 and then modified it to a value between 1000 wb / m2 and 200 wb/m2. The harmonic content in the line voltage increased to 3.34% with a non-linear load by 0.54% with a linear load.

scholarly journals Compensation of voltage Sag using STATCOM

2018 ◽  
Vol 7 (2.8) ◽  
pp. 673
Author(s):  
Savitha Venkatesan ◽  
Booma Nagarajan
Keyword(s):  
Transmission Line ◽  
Reactive Power ◽  
Sudden Change ◽  
Transmission System ◽  
Voltage Source ◽  
Voltage Sag ◽  
Voltage Source Converter ◽  
Linear Load ◽  
Non Linear ◽  
Non Linear Load

Due to unpredicted non-linear loads, power quality problems, a raise in the transmission system. One such problem is voltage sag. Voltage sag is caused by the non-linear load which demands reactive power, but the balanced 3F source provides required reactive power of the load with reduced voltage at the receiving end. In this paper, simulation study has been performed to reducethe voltage sag issue. A transmission system with generation source with different loading conditions is considered and study has been done. A 3F medium P model transmission line is designed with a power source of 11kV.  A shunt connected compensation unit called Static Synchronous Compensator (STATCOM) reduces the voltage sag in the transmission line. STATCOM provides the required reactive power demanded by the non-linear load along with the source for compensation of voltage sag. The STATCOM circuit comprises of Voltage source converter(VSC) unit and a DC source. Reactive power compensation is done by VSC unit firing angle control. The source of the STATCOM can also be from renewable energy system. This AC source is converted by a AC-DC-AC converter unit.The firing angle is controlled by the control unit which ensures the continuous and balanced power flow even under sudden change in load conditions. The simulation results depict the characteristics of the developed STATCOM.

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