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With the increasing levels of distributed generation, the control of voltages within statutory limits across distribution networks becomes challenging. Further, the demand depends on the load busbar voltages to some extent and therefore the voltage control becomes an important means of load control especially at peak load periods. An electronically controlled series compensator based on a three winding...
Electromagnetic torque of a DC motor can be measured directly by a torque sensor attached to the shaft. However, this is an expensive solution requiring additional power, interfacing and sometimes such a torque sensor can be too bulky to be implemented in a compact environment. Alternatively, the armature current measurement can be used to derive the electromagnetic torque of the DC motor, provided...
A method for demand side voltage control, using a three winding smart transformer is investigated. The concept is to control the secondary side voltage of the transformer by injecting a voltage to the tertiary winding. This paper presents a design methodology for the proposed transformer, as well as for the controlling scheme, and validates the concept through simulation and hardware implementation...
It is anticipated that with increased penetration of micro scale renewable generation sources, electric vehicles and demand response initiatives the voltage of low voltage networks need to be controlled in real time. Commonly used method of voltage control is on-load tap changing. However as this has limitations, an electronically controlled Volt-Var Control (VVC) scheme based on a three winding transformer...
Unbalance in power system caused by the addition of single phase and dynamically varying loads are unavoidable. Due to this reason the load reactive power is no longer balanced, which causes voltage fluctuation, line overloading and high transmission line losses. Researchers have come up with technologies to compensate the load reactive power using mostly by CUSTOM power devices at distribution level...
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