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Weak network characteristics make it difficult to maintain grid compliance which, in its turn, restricts photovoltaic (PV) installation capacity. An energy storage system (ESS) combined with an on-load tap changing (OLTC) transformer is proposed as a solution. PV power plants are often located at remote locations where the electric network is weak. A weak network model is defined and simulated, showing...
In this paper the row-spacing and tilt trade-off, east-west orientation and adjustable tilt methods are discussed and evaluated as module layout optimisation methods which can be used to navigate some of the common design constraints in the solar PV sector. Site-related constraints and advancements in the photovoltaic (PV) industry over the past couple of years have necessitated the need to review...
The parameter extraction method of De Soto is implemented in the single diode model and evaluated against measured data at varying temperatures and irradiances. The simulated current-voltage-curves (IV-curves) of the method can be seen as acceptable at reference conditions, but they result in a different IV-curve, not matching the measured IV-curve, at conditions that differ from the reference conditions...
The design choices that affect the performance and cost of non-overlapping concentrated-coil permanent magnet machines for EV hub drives are investigated. It is shown that the torque per I2R copper loss performance of the machine cannot be judged on the winding factor of the machine. Wide open stator slot machines with rectangular preformed coils and, thus, low manufacturing costs perform surprisingly...
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