A novel integrated optimization method is proposed to combine both generation and transmission line expansion problem considering bus voltage limit. Most of the existing researches on the combined generation and transmission expansion planning cannot consider bus voltages and reactive power flow limits because they are mostly based on the DC power flow model. In this paper the AC power flow mod...

Most of the wind power plants currently installed at North Sea are near to shore connected with the onshore grid through AC cable. AC transmission technology is proven and reliable, but there will be a need to switch from AC to DC transmission since large number of offshore power plants at longer distance to shore are expected to be installed by the end of 2020. Furthermore, to enhance the inte...

This paper presents a multi-year scenario-based methodology for transmission expansion planning (TEP) in order to enhance the available transfer capability (ATC). The ATC is an important factor for all players of electricity market who participate in power transaction activities and can support the competition and nondiscriminatory access to transmission lines among all market participants. The...

Voltage Source Converter (VSC) based HVDC is the most recent HVDC technology with extruded DC cables in small and medium power transmission. VSC-HVDC converters include Insulated Gate Bipolar Transistors (IGBT’S) and operated with high frequency Pulse Width Modulation (PWM) in order to get high speed control of both active and reactive power. With VSCHVDC there is an addition degree of freedom....

Voltage Source Converter (VSC) based HVDC is the most recent HVDC technology with extruded DC cables in small and medium power transmission. VSC-HVDC converters include Insulated Gate Bipolar Transistors (IGBT’S) and operated with high frequency Pulse Width Modulation (PWM) in order to get high speed control of both active and reactive power. With VSC-HVDC there is an addition degree of freedom...

Three-phase induction motors are widely used in electric traction systems. Impacts of the traction vehicle equipped by three-phase induction motors on power quality are much different from the impacts of vehicles with DC traction motors. In this paper, the effects of the traction vehicle operation with threephase induction motors on power quality in 110 kV transmission network are investigated....

Deregulation and privatization as well as the increase use of renewable energy are posing new challenges on high voltage transmission systems. Environmental constraints, such as energy saving, loss minimization and CO2 reduction, will also play an important role. The loading of existing power systems will further increase, leading to bottlenecks and reliability problems. High voltage power elec...

For long distance and high power transmission, high-voltage direct current (HVDC) transmission is a preferred solution due to its technical and economic advantages. A multi-terminal HVDC (MTDC) transmission system either based on voltage source converters (VSC) or line-commutated converters (LCC) has also been introduced recently. With the development of fast and high breaking capability HVDC c...

1. Theoretical Background It is known that electromagnetic energy also associated with the propagation of the electromagnetic waves. We can use theoretically all electromagnetic waves for a wireless power transmission (WPT). The difference between the WPT and communication systems is only efficiency. The Maxwell's Equations indicate that the electromagnetic field and its power diffuse to all di...