Reactive power compensation

Part 2 book "Electric power engineering handbook" includes content: Reactive power compensation, environmental impact of transmission lines, power system loads, distribution system modeling and analysis, power system operation and control, hard to find information (on distribution system characteristics and protection), real time control of distributed generation,... and other contents.

238p dianmotminh01 20-05-2024 5 3   Download

Part 2 book "Analysis and design of low voltage power systems" includes contents: Protection against electric shock, current carrying capacity of conductors and cables, calculation of short circuit currents in three phase networks, voltage drop calculations, lighting systems, compensation for reactive power, lightning protection systems, using the CD-ROM.

233p dianmotminh01 14-05-2024 0 0   Download

Part 1 book "Thyristor-based facts controllers for electrical transmission systems" includes content: Introduction, reactive power control in electrical power transmission systems, principles of conventional reactive power compensators, SVC control components and models, concepts of SVC voltage control

236p dianmotminh00 22-04-2024 4 3   Download

The reduction of losses in Distribution System (DS) is one of the main missions of power utilities. The method of economic compensation is often considered because here capacitors are used to compensate reactive power. With the growth of load and the expansion of topology, the existing capacitors in the network are not efficient, in terms of economy.

5p vispyker 16-11-2022 9 1   Download

This paper presents a method to determine the capacity and location of compensating capacitors to reduce power loss and improve voltage quality in the Microgrid. At each bus location, the compensating capacitor capacity is varied to determine the bus location and capacitor capacity.

9p vibentley 08-09-2022 13 4   Download

For a robust voltage control of the system, controllers of proportional and integral type have been incorporated for AVR of the excitation system of the synchronous generator and SVC. The controller parameters are optimized using firefly algorithm (FA). The dynamic response of the system has been tested for different degrees of load disturbances plus variable nature of the wind system.

13p phanngocminhtam 14-09-2021 9 1   Download

We present in this paper a control method of a novel hybrid parallel active power filter (HPAPF) used for harmonic currents elimination and reactive power compensation in the power system for threephase variable frequency drives (VFDs). The HPAPF configuration is built from two basically filter components including harmonics tuned passive filter and active power electronics filter.

11p vioregon2711 22-02-2021 16 3   Download

This paper proposes a distributed device that could compensate reactive power by centralized control. This device only manipulates a controller for a capacitor system and loads. The controller collects the data of current, voltage, and power in each of the load branches in order to adjust total reactive power in priority sequence.

13p vidoha2711 10-09-2020 8 1   Download

Active Power Filter (APF) is capable of changing the size and frequency of harmonics as well as changes in reactive power compensation. It is important to control the stability of the DC-link capacitor voltage stability for it. For DC voltage controls of APF, there are two important achievements.

15p vivalletta2711 11-01-2020 19 1   Download

For resolving the problem that power filter cannot work normally because TCR (thyristor controlled reactor) generates extra third harmonic current under asymmetrical voltage, the paper proposes the estimation method of current capacity that TCR generates extra third harmonic current under asymmetrical voltage.

9p vivalletta2711 11-01-2020 12 2   Download

In order to optimize the electric energy quality of HVDC access point, a modular multilevel selective harmonic elimination pulse-width modulation (MSHE-PWM) method is proposed. On the basis of keeping the minimum action frequency of the power device, MSHE-PWM method can meet the requirement for accurately eliminating low-order harmonics in the output PWM waveform.

7p vivalletta2711 11-01-2020 9 0   Download

About a Heuristic search methods for reactive power compensation for radial distribution networks, which receive cost savings is maximized. The method is a technique that is done from the technical concept of the present and Heuristic for better results. The method was developed and applied to three-phase system. The results of this method are compared with previous methods to show its advantages. New algorithm is implemented through technical change to obtain the position, the optimal capacitor size.

8p kethamoi1 20-11-2019 9 0   Download

Within this book the fundamental concepts associated with the topic of power electronic control are covered alongside the latest equipment and devices, new application areas and associated computer-assisted methods. *A practical guide to the control of reactive power systems

451p anplixfz 22-01-2013 138 56   Download

In practice, consumption devices are not only resistive but also reactive and this reactance varies with time. Therefore, grid voltage is not stable and coefficients always change in spite of using Automatic Reactive Power Regulator. To regulate voltage and cosφ in an expected range, it is necessary to change the parameters of regulators as the loads change.

6p tuanlocmuido 19-12-2012 48 2   Download

Power quality has become an important issue in recent times when many utilities around the world find very difficult to meet energy demands which leads to load shedding and power quality problems. This book on power quality written by experts in their fields will be of great benefit to professionals, engineers and researchers. This book comprises of 16 chapters which are arranged in two sections. Section one covers power quality monitoring, classification, and analysis aspects.

0p ktcn_1 10-07-2012 74 9   Download

Power amplifiers consist of an active device, biasing networks and input and output reactive filtering and transforming networks. These networks are effectively bandpass filters offering the required impedance transformation. They are also designed to offer some frequency shaping to compensate for the roll-off in the active device frequency response if broadband operation is required. However the function of each network is quite different. The input circuit usually provides impedance matching to achieve low input return loss and good power transfer. ...

26p doroxon 16-08-2010 113 16   Download