The ITER reactive power compensation and harmonic filtering (RPC & HF) system: Stability & performance

2011 ◽  
Author(s):  
Ashok D. Mankani ◽  
I. Benfatto ◽  
J. Tao ◽  
J. K. Goff ◽  
J. Hourtoule ◽  
...  
Keyword(s):  
Reactive Power ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Harmonic Filtering

scholarly journals The Performance of the BTB-VSC for Active Power Balancing, Reactive Power Compensation and Current Harmonic Filtering in the Interconnected Systems

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 831 ◽  
Author(s):  
Janeth Alcalá ◽  
Víctor Cárdenas ◽  
Alejandro Aganza ◽  
Jorge Gudiño-Lau ◽  
Saida Charre
Keyword(s):  
Reactive Power ◽  
Harmonic Distortion ◽  
Reactive Power Compensation ◽  
Active Power ◽  
Performance Criteria ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Current Harmonics ◽  
Current Harmonic ◽  
Harmonic Filtering

Nowadays, the use of power converters to control active and reactive power in AC–AC grid-connected systems has increased. With respect to indirect AC–AC converters, the tendency is to enable the back-to-back (BTB) voltage source converter (VSC) as an active power filter (APF) to compensate current harmonics. Most of the reported works use the BTB-VSC as an auxiliary topology that, combined with other topologies, is capable of active power regulation, reactive power compensation and current harmonic filtering. With the analysis presented in this work, the framework of the dynamics associated with the control loops is established and it is demonstrated that BTB-VSC can perform the three tasks for which, in the reviewed literature, at least two different topologies are reported. The proposed analysis works to support the performance criteria of the BTB-VSC when it executes the three control actions simultaneously and the total current harmonic distortion is reduced from 27.21% to 6.16% with the selected control strategy.

Development of a Soft Starter with Current-Limiting, Reactive Power Compensation and Harmonic Filtering

2013 ◽  
Vol 462-463 ◽  
pp. 658-661 ◽  
Author(s):  
Yi Fei Wang ◽  
You Xin Yuan
Keyword(s):  
Topological Structure ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
Experimental Result ◽  
Cost Performance ◽  
Reactive Compensation ◽  
Soft Starter ◽  
Current Limiting ◽  
Save Energy ◽  
Harmonic Filtering

Aimed at the high starting current, low power factor and low running efficiency, a novel soft starter with current-limiting, reactive power compensation and harmonic filtering is developed in this paper. The following works have been done in the study: the research of topological structure, the design of hardware and software of the control system, the validation of experimental result. It has been successfully applied to the fans load of 10kV, 19000kW, and got better effects, and satisfies the characteristics of the current-limiting and reactive compensation during this motor starting. It can also realize the power harmonic filtering after the motor soft starting, improve the whole starting performance, save energy and keep the grid voltage stable, with easy engineering implementation and high cost performance.

Application of Static Reactive Power Compensation Device in Power System Stability

2014 ◽  
Vol 494-495 ◽  
pp. 1651-1655
Author(s):  
Yu Jie Pei ◽  
Qing Hao Wang ◽  
Jian Guo Xu ◽  
Zhi Gang Li ◽  
Bo Liu ◽  
...  
Keyword(s):  
Reactive Power ◽  
Power System Stability ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Liaoning Province ◽  
Voltage Fluctuation ◽  
Electricity Load ◽  
Design Requirements ◽  
Compensation Device ◽  
Quality Status

With the rapid economic development in Liaoning Province, very rapid growth in electricity load, especially steel and fused magnesium commercial power. After the implementation of TOU price, Liaoning power grid voltage fluctuation is increased by that some enterprises were concentrated in low hours of electricity. Some power users were affected by lacking the means of dynamic reactive power. To point the necessity of application of the SVC, the existing of 66kV and 220kV grid power quality status are analyzed and simulated. The SVC compensation capacity and filter parameters are systematically design, after the transformation of the system and the simulation proved that the grid can achieve the design requirements.

scholarly journals Modeling, Control and Placement of FACTS Devices: A Review

2020 ◽  
Vol 39 (4) ◽  
pp. 719-733
Author(s):  
Ayesha Haroon ◽  
Irfan Shafqat Javed ◽  
Huma Rehmat Baig ◽  
Ali Nasir
Keyword(s):  
Power Quality ◽  
Distribution Systems ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Transmission Systems ◽  
Facts Devices

Over the past two decades, developing distributed energy sources in electric power grid have created new challenges related to the power quality, voltage adjustment and proficient energy utilization. Power electronic converters are widely used to interface the emerging energy systems (without and with energy storage) and smart buildings with the transmission and distribution systems. Flexible Ac Transmission Systems (FACTS) and Voltage-Source Converters (VSC), with smart dynamic controllers, are emerging as stabilization and power filtering equipment to improve the power quality. FACTS devices are of vital significance for tackling the problem of voltage instability which is inevitable and leads to losses in transmission system networks. These devices provide fast voltage regulation, ensure system stability and reactive power compensation. In this regard, modeling, control and appropriate placement of these devices in the transmission lines have been of great importance for researchers of power transmission systems. By using high speed power electronic converters, FACTS perform many times faster than the conventional compensation techniques. FACTS not only provide fast voltage regulation but also damping of active power oscillations and reactive power compensation. Hence, they increase the availability and reliability of the power systems. But, the functioning of a FACTS device extremely reckons upon its parametric quantity, appropriate placement, and sizing in the power network. In this paper, an extensive literature survey is presented to discuss and investigate these parameters of FACTS devices.

scholarly journals Reactive Power Compensation and Power Factor Correction by using Static VAR Compensator (SVC)

2021 ◽  
Vol 9 (VI) ◽  
pp. 4034-4036
Author(s):  
Aafreen S. Sheikh
Keyword(s):  
Lead Time ◽  
Reactive Power ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Static Var Compensator ◽  
Circuit Breakers ◽  
Optical Isolation ◽  
Effective Voltage ◽  
Shunt Capacitors ◽  
Ac Transmission

In this paper, a reactive power compensation system using static VAR compensator is presented. To confine on system stability and reliability, the reactive power compensation is the fundamental way forflexible AC transmission systems (FACTS). The variations of reactive power have an effect on thegenerating units, lines, circuit breakers, transformers, relays, and isolators. It can also cause effective voltage sags and increase losses. In the proposed system, the lead time between voltage pulse and curren pulse is measured and fed to the interrupt pins of the microcontroller where the program takes over to bring the shunt capacitors to the circuit to get the reactive power compensated. Back-to-back SCRs interfaced through optical isolation from the microcontroller are used in parallel for controlling the capacitor.

Study on Application of STATCOM in Dynamic Reactive Power Compensation of Wind Farm Integration

2014 ◽  
Vol 672-674 ◽  
pp. 255-261
Author(s):  
Zhi Jian Liu ◽  
Zi Qi Zhao ◽  
Bo Li
Keyword(s):  
Wind Power ◽  
Large Scale ◽  
Wind Farm ◽  
Reactive Power ◽  
Power Grid ◽  
Reactive Power Compensation ◽  
System Stability ◽  
Static Synchronous Compensator ◽  
Wind Power Integration ◽  
Doubly Fed

As an increasing proportion of wind power in power grid, reactive power problem has become the most important problems in wind power integration. But as a result of wind power is a kind of intermittent energy sources, and put it into use in a large scale only just beginning. Many urgent problems which affect on system stability need to be resolved, such as voltage stability, reactive power compensation. This paper discussed the problems which around the reactive power compensation and angle stability issues while wind power integration. The reactive power compensation device named STATCOM instead of traditional capacitance. Establish the mathematical model of the Doubly-Fed Induction Generator (DFIG) and Static Synchronous Compensator (STATCOM) [3]. In order to meet the wind farm can transport reactive power quickly and continuously after fault. Establish the control strategy of DFIG combined with STATCOM [1]. Using the software MATLAB to simulate the wind power grid model and control system, verifies the rightness and effectiveness of model and STATCOM reactive power compensation effect for wind power integration.

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