Photonic Voltage Transducer with Lightning Impulse Protection for Distributed Monitoring of MV Networks

Protection of Medium Voltage and Low Voltage Networks against Lightning Part 2: Lightning protection of Medium Voltage Networks

Characterisation at Low Voltage of Two Reference Lightning Impulse Dividers

An effort is pursued by several European National Measurement Institutes to lower the uncertainties in calibration of UHV measuring systems for lighting impulse. To this end, several reference dividers are investigated as regards their accuracy both for amplitude and for time parameters. At SP RISE Research Institutes of Sweden, a 500 kV resistive reference divider has been in use since 2000. A...

Model predictive control of voltage profiles in MV networks with distributed generation

network with two feeders, eight DGs, and thirty-one loads is used as case study. The model of the network is implemented in DIgSILENT PowerFactory®, while the control algorithm runs in Matlab®. A number of simulation results is reported to witness the main characteristics and limitations of the proposed approach.

Distributed Voltage Control in Distribution Networks with High Penetration of Photovoltaic Systems

In this paper, a distributed method for reactive power management in a distribution system has been presented. The proposed method focuses on the voltage rise where the distribution systems are equipped with a considerable number of photovoltaic units. This paper proposes the alternating direction method of multipliers (ADMMs) approach for solving the optimal voltage control problem in a distri...

Lightning Protection of Ehv Substations in Iran

Extra high voltage (EHV) substations are extremely vulnerable to the hazard of lightning strokes therefore, the shielding of these substations with a highly reliable protective scheme (shield wires) is an essential undertaking. In this paper an attempt is made to clarify the design procedure for shielding EHV substations against lightning with special reference to Iran.