10kw three-phase photovoltaic grid-connected inverter simulation

Can MATLAB Simulink be used for photovoltaic grid connected systems?

This paper deals with design and simulation of a three phase inverter in MATLAB SIMULINK environment which can be a part of photovoltaic grid connected systems. The converter used is a Voltage Source Inverter (VSI) which is controlled using synchronous d-q reference frame to inject a controlled current into the grid. Phase lock loop (PLL)

How does a grid connected photovoltaic system work?

Fig. 12. Output of the proposed grid connected photovoltaic system. Thus the active and reactive power follows quietly the reference signals. The grid voltage and current are in phases thereby the power factor at the grid connection is almost unity.

What is a grid connected inverter?

Grid is a voltage source of infinite capability. The output voltage and frequency of inverter should be same as that of grid frequency and voltage. The output of grid connected inverter can be controlled as a voltage or current source and pulse width modulated VSI are is used to lock grid frequency and phase.

How many PV systems are grid connected?

Around 75% of the PV systems installed in the world are grid connected . In the grid-connected PV system, DC-AC converters (inverters) need to realize the grid interconnection, inverting the dc current that comes from the PV array into a sinusoidal waveform synchronized with the utility grid [2, 3].

What are the components of a grid connected PV system?

MATLAB/Simulink. The proposed model consists of a PV array, Max imum power point tracker, Boost converter, Inverter and an LC f ilter. Modelling of these components has been described and demonstrated in detail. The impact of solar irradiance and temperature on the overall power generation of a grid connected PV system has been studied.

How does a grid connected dual-stage inverter work?

In the proposed grid-connected dual-stage inverter, the direct axis current, Id, is observed, which serves for the inverter stage to set Vdc. These actions define the DC-DC converter’s input characteristic behavior, which determines the PV array operation point . When Id is maximized, the PV array operates on MPOP.