Modern Reactive Power Generators

L Chubraeva,S Timofeev

doi:10.1088/1757-899x/313/1/012006

L Chubraeva, S Timofeev

Open Access

https://doi.org/10.1088/1757-899x/313/1/012006

Copy DOI

Abstract

The paper reviews main stages of development of reactive power generators, describes the 1-st and 2-nd generation of synchronous condensers with conventional cooling systems and a new generation – superconductive synchronous condensers. Asynchronous non- salient pole condensers expand the class of rotating compensating devices. Comparison of dynamic performance of conventional synchronous condensers, cryogenic condensers and SVC is presented. The variant of a model 5 MVA HTSC synchronous condenser intended for wind power plants is described.

Highlights

Reactive power is the power of AC circuits utilized for supporting magnetic fields in inductive loads or electric fields for capacitors, cables, etc
Reactive power compensation is defined as reactive power management with the aim of improving the performance of AC power [1, 2]
Reactive power compensation is considered in two aspects: load compensation and voltage support

Summary

INTRODUCTION

Reactive power is the power of AC circuits utilized for supporting magnetic fields in inductive loads (transformers, electrical motors, inductive stoves, etc.) or electric fields for capacitors, cables, etc. Synchronous condensers allow to increase the throughout transmission capacity of individual transmission lines, intersystem or interstate long distance transmission lines. They are responsible for correction of electrical power flow along the circuits with different voltage values in multicontour electrical grids to obtain positive technical or commercial effect [2]. As reactive power compensation is an effective way to improve the electric power network, there is an urgent need for controlled reactive power generation. Reactive power generators and synchronous condensers were synonyms. They represented a multi-pole synchronous machine without mechanical load on the shaft, operating with variable excitation and armature currents in accordance with U-curves [3]. 200 kV transmission lines reactive power is practically not compensated [2]

FIRST GENERATION OF CONVENTIONAL SYNCHRONOUS

SECOND GENERATION OF CONVENTIONAL

ASYNCHRONOUS CONDENSERS

SUPERCONDUCTIVE SYNCHRONOUS CONDENSERS

COMPARISON OF DYNAMIC PERFORMANCE OF

VIII. CONCLUSIONS