What is meant by line compensation?

Why is compensation used in transmission lines?

The main reason for reactive power compensation in a system is: 1) The voltage regulation 2) Increased system stability 3) Better utilization of machines connected to the system 4) Reduction in losses associated with the system 5) To prevent voltage swell as well as voltage sag.

What is compensation in power quality?

The series compensator compensates the power quality problems such as grid voltage sags/swells for the grid side. During sag and swell condition, the compensated voltage is injected by the series compensator in phase with the point of common coupling (PCC) or out of phase with PCC.

What do you mean by shunt compensation?

In shunt compensation, FACTS are connected in parallel with the power system transmission line. It works as a controllable current source. A reactive current is injected into the line to maintain constant voltage magnitude by varying shunt impedance.

What is series compensation?

Series compensation is the method of improving the system voltage by connecting a capacitor in series with the transmission line. In series compensation, reactive power is inserted in series with the transmission line for improving the impedance of the system. It improves the power transfer capability of the line.

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Which is used for line compensation?

Active voltage source (synchronous generator)

Capacitors and inductors as such are passive line compensators, while synchronous generator is an active compensator. When solid-state devices are used for switching off capacitors and inductors, this is regarded as active compensation.

Why is compensation needed?

One of these is the necessity of reactive power that needs to be supplied along with active power. Reactive power can be leading or lagging. … It is economical to supply this reactive power closer to the load in the distribution system. Reactive power compensation in power systems can be either shunt or series.

Which is most suited objective of line compensation?

Objectives of shunt compensation:

  • Midpoint Voltage Regulation for Line Segmentation.
  • End of Line Voltage Support to Prevent voltage Instability.
  • Improvement of Transient Stability.
  • Power Oscillation Damping. Questions of this topic.

What do you mean by compensation?

Typically, compensation refers to monetary payment given to an individual in exchange for their services. In the workplace, compensation is what is earned by employees. It includes salary or wages in addition to commission and any incentives or perks that come with the given employee’s position.

What is the compensating current?

The compensation currents adopted a synchronous reference frame detection method that gives good performances under ideal or non ideal voltage conditions. To maintain dc link voltage constant and compensate the power losses of the inverter a proportional-integral voltage controller is used in the outer control loop.

What is compensation control system?

Summary. Control system compensation is the strategy used by the control system designer to improve system dynamic performance through the addition of dynamic elements in order to mitigate some of the undesirable features of the control elements present in the system.

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