Abstract
This paper presents the transient stability analysis of a photovoltaic (PV) system with account shading effects. Voltage and transient stability effect of PV system are assessed functions of an experimental study. The current advances in shading effect and temperature control of PV panels are studied. The study is performed on modeling and simulation of PV system with account shading effect. A shading effect system is introduced to reflect the transient response characteristics of PV generation model. An experimental setup is designed, constructed and assembled. The setup is provided with the necessary measuring instruments to carry out the required tests. A perspective on the other shading techniques for PV panels will be discussed in this paper.
Highlights
Due to the growing demand on electricity, the limited stock and the rising prices of conventional sources, PV energy becomes a promising alternative as it is universal, freely available, environment friendly and has less operational and maintenance cost
In response to an increase of PV capacity, the capacity of conventional synchronous generator needs to be reduced relatively. This leads to lower system inertia and higher generator reactance, and the power system transient stability may be negatively affected
The DC/DC converter, the circuit of solar cell of the PV module and their I-V characteristic are presented at various temperatures and irradiances
Summary
Due to the growing demand on electricity, the limited stock and the rising prices of conventional sources (such as coal and petroleum), PV energy becomes a promising alternative as it is universal, freely available, environment friendly and has less operational and maintenance cost. In response to an increase of PV capacity, the capacity of conventional synchronous generator needs to be reduced relatively This leads to lower system inertia and higher generator reactance, and the power system transient stability may be negatively affected. Authors in [2] presented the impact of grid-connected PV generator on dynamic voltage stability of the IEEE-13 bus power system by considering solar intermittency, PV penetration level, and contingencies such as line outage and load increase. Authors in [5] analyzed the effect of diversity in power sources, fault location, load characteristics, and low-voltage ride-through on transient stability of IEEE 9 bus system with connected high penetration PV system. With the variation of cell temperature and irradiation, there will be considerable change in voltage and current which
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