Influence study of concentrated photovoltaic location on voltage stability

Abstract

Concentrated Photovoltaic modules (CPV) use optics, such as lenses to concentrate a large amount of sunlight onto a small area of solar photovoltaic materials to generate electricity. The solar irradiance level and landscape area are considered as main factors in CPV site on the network. These factors are not sufficient for improving the CPV performance and grid integration .The coupling point of CPV to the grid is an important role and affects the network stability. This paper focuses on the influence study of CPV location on voltage stability .PSS/E has been used as a tool for simulation and validation the integration of CPV to 14-IEEE network as benchmark test. Ac contingency analysis tool is used to study the voltage stability at different cases and locations of CPV. Results indicate that the distributed CPV improves the voltage stability of the network, rather than centralized CPV. Distributed CPV connects at different locations and near to the load. Therefore, the impact of distributed CPV is minimized with respect to voltage stability issue.

Optimum Placement of Distribution Generation Units in Power System with Fault Current Limiters Using Improved Coyote Optimization Algorithm

“…Here, denotes a three-phase short circuit current. The economical design of FCLs is the third main purpose and is written [ 18 , 19 ] as where SFCL describes the size of the FCL applied, while the total number of FCLs is denoted by N. Furthermore, the constraints of balancing active and reactive powers [ 20 , 21 , 22 , 23 ] are analyzed as …”

The Voltage Regulation Control Strategy with Distributed Photovoltaic Participation under Serious Failure Based on Transient Voltage Margin

“…For the HVDC receiving end system under distributed PV intensive access, the PV inverter has the same topology as SVG and STATCOM, and can also run at any power factor. If PV can provide reactive power support during the transient process, reduce its own grid-connected point voltage fluctuations, prevent itself from being disconnected, and provide reactive power support for weak voltage points(see reference [12][13] ), it will save investment in reactive power compensation devices and increase utilization rate of inverter capacity. To this end, this paper proposes a voltage regulation control strategy with distributed photovoltaic participation under serious failure based on transient voltage margin.…”