Therefore, the use of capacitor banks in any of their versions (single-phase, three-phase, scalable battery, SVC, etc.) is the most economical and sufficient solution. In this study, a calculation algorithm is proposed to obtain compensators for the inductive reactive power of the load, consisting only of single-phase capacitor banks.
The capacitive reactive power is generated through the capacitance producing devices serially or shunt connected to a load , , . A significant amount of studies was devoted to the methods to produce reactive power, such as DSTATCOMs , , , STATCOM , , , and real electrical capacitors .
This article presents an efficient voltage regulation method using capacitive reactive power. Simultaneous operation of photovoltaic power systems with the local grids induces voltage instabilities in the distribution lines. These voltage fluctuations cross the allowable limits on several occasions and cause economic losses.
In the first step, given power factor of each load node is predetermined and then capacitor at the load node is calculated based on the known power factor, active power, and reactive power of the load. In the second step, the total compensation power of all capacitors at electric loads is determined.
In this paper, reactive power compensation in radial distribution systems has been investigated in reducing total power loss. On the contrary to other previous studies, the study has used local compensation at each load for increasing power factor to 0.9 and then capacitors in distribution lines have been placed as other studies.
In summary, we implement compensation of reactive power twice. In the first stage, we compensate reactive power at loads by using equation (20) to increase their power factor and then we calculated the total compensation power Qtotal at loads by using equation (22).
Optimal Placement of Capacitor Bank in Reorganized …
current flow, which, with the increasing of the current flow, ... reactive power by capacitors, the effects of the reactive components reduce and the power factor increases, which will result in more favorable technical conditions for energy transfer [7-12]. ... for optimal placement of capacitors. 2. GENETIC ALGORITHM
(PDF) Dynamic Power Factor Correction in Industrial …
The optimised switching angles are computed off-line using gravitational search algorithm and stored in microcontroller memory for on-line applications. ... reactive power flexibility. Current ...
Optimal Size and Location of Capacitor Bank for Reactive Power ...
Most of the shunt capacitor banks (SCB) are mounted to provide capacitive reactive compensation for correction of the power factor. The use of SCBs has risen as they are comparatively cheap, simple and fast to install and can be deployed nearly anywhere in the …
Improved Reactive Current Detection Method of SVG
Therefore, the study of reactive current detection algorithms and the optimization of SVG control strategy are the important routes to improve the SVG reactive power compensation system [11,12]. At present, reactive power detection algorithms ... from the AC system to charge the DC bus capacitor C, without external power supply to maintain its ...
Capacitor Placement Optimization using Fuzzy Logic and Genetic …
Keyword: capacitor, fuzzy logic, genetic algorithm I. Introduction Load growth in the distribution system is increasing continuously. This load growth is followed by an ... generator so that the reactive current will flow in the line resulting in a decreased power factor, voltage drop, and large power losses. One way to improve the power and ...
Optimal Sizing and Placement of Capacitor …
In recent decades, the issue of independent reactive power services, including the optimal placement of capacitors in the grid due to the restructuring of the electricity …
Capacitive reactive power compensation to prevent voltage …
In the proposed method, the reactive power is applied at the load and generated using a capacitor bank. The capacitors are arranged in a binary order of capacitances to …
Reactive Power Optimization Dispatch …
After adding DG, the dynamic reactive power optimisation mathematical model and the system reactive power adjustment capacity will change. Hence, this paper analyses …
A Reactive Power Sharing Strategy of VSG Based on Virtual Capacitor …
The reactive power-sharing based on the virtual capacitor algorithm is proposed in [19, 20]. These methods adjust the Q-V droop control by employing additional control that corrects the change in ...
Optimum reactive power compensation for …
Optimum reactive power compensation for distribution system using dolphin algorithm considering different load models October 2020 International Journal of Electrical and Computer Engineering ...
Optimal capacitor placement in distribution networks using …
Keywords: Capacitor placement, Genetic algorithm, Optimization. Introduction The majority of the energy losses happen in the distribution and transmission systems. The losses in the power system are produced by reactive current in the transmission lines. The reactive power is manufactured in
An Effective Reactive Power Compensation Method and a Modern ...
An iterative algorithm was run to determine the most appropriate compensation nodes in the first step while a power loss minimization equation with respect to the current of the capacitor was solved for reaching the size of capacitors at each predetermined location.
(PDF) A Two-Stage Approach to Shunt Capacitor-Based Optimal …
This article presents a two‐stage approach for sizing shunt capacitors and identifying the locations where their placement would be most beneficial within radial …
A TWO-STAGE APPROACH TO SHUNT CAPACITOR-BASED OPTIMAL REACTIVE …
A two-stage approach to shunt capacitor-based optimal reactive power compensation using loss sensitivity factor and cuckoo search algorithm Olakunle E. Olabode1 | Ignatius K. Okakwu2 | Akintunde S. Alayande3 | Titus O. Ajewole4 1Department of Electronic and Electrical Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
A two‐stage approach to shunt capacitor‐based …
A two‐stage approach to shunt capacitor‐based optimal reactive power compensation using loss sensitivity factor and cuckoo search algorithm ... reduces short circuit current fault ... by another author from Saudi Arabia. 30 …
A Topology for Reactive Power Compensation in Grid System
The device described in this publication is a thyristor-switched capacitor (TSC) device used in a 200 kV/11 kV, 200 MW grid system. In addition to the capacitor bank''s …
Impact of Optimal Placement and Sizing of Capacitors …
After running the algorithm, the simulation results gave percentage real and reactive power loss reduction of 34.28% and 28.94% as compared to the base case for the IEEE 33-bus system while the ...
(PDF) A Novel Single-Phase Reactive Current …
This paper developed a novel single-phase reactive current detection algorithm based on fast orthogonal signal generator (OSG) and enhanced moving average filter (MAF), overcoming the limitation ...
A Topology for Reactive Power Compensation in Grid System
Hingorani and Gyugyi [] described strategies for compensating reactive power, the operating principles, design features, and examples of applications for Var compensators that use thyristors and self-commutated converters.Huang et al. [] suggested the GSES algorithm as a means of quickly dampening interarea oscillations in the SVC.For minimizing power quality …
A consensus based adaptive virtual capacitor control strategy for ...
In this paper, an adaptive virtual capacitor control strategy (AVSSC) based on consensus is proposed to solve this problem. The strategy ensures the accurate sharing of …
Optimal Size and Location of Capacitor Bank for Reactive Power ...
The main reason of high amount of losses and reduce voltage is insufficient amount of reactive power which can be minimized by the capacitor, but the accurate size and proper allocation of capacitor is always a challenge thus the optimal capacitor placement problem is to determine the location and size of capacitors to be placed in distribution networks in an well-organized way …
A New Reactive Current Reference Algorithm for the STATCOM …
This paper presents a simple controller integrating a new reactive current reference algorithm for enhancing the transient performance of static synchronous compensator (STATCOM). A multilevel cascaded inverter with separated dc capacitors which is driven by carrier-based pulse width modulation is used to implement the STATCOM. The voltage across each dc-link …
Optimal Reactive Power Flow of AC-DC …
In this paper, it is proposed that a two-terminal high voltage direct current (HVDC) be integrated into the power system. Line-commutated converter (LCC)-HVDC is used …
Reactive circulating current injection of MMC-based multiport …
But for the mitigation of zero-sequence circulating current, reactive fundamental frequency circulating currents of three phases are set to [14.43A ... it is obvious that only using the sorting algorithm cannot guarantee the capacitor voltage balance and the proposed method can well maintain the balance of SM capacitor voltages under uneven ...
Design and implementation of a new adaptive energy management algorithm …
Other cases the capacitor acts as a compensator in the active filter. The adaptive energy management algorithm calculates the reactive power value demanded by the load. The modulation index of the inverter in the system produces current according to this reactive reference current value.
A Real-Time Optimization of Reactive Power for An Intelligent …
First, a mathematical model has been formulated for the proposed power factor correction system. The mathematical model can be employed to determine the optimal operational settings of the multi-step capacitor and the reactor value that optimize the reactive power while considering the desired PF value and restricting the harmonics.
A New Power Factor Improving Algorithm Under High
A new accurate computational method suitable for improving power factor of high-power AC-DC power supplies under high AC line voltage and light-load conditions is presented in this paper. The method is both adaptive and iterative and capable of maximizing power factor while total harmonic distortion is controlled within a pre-determined acceptable …
Configuration Strategies of Reactive Power Compensation in …
In this paper, a novel algorithm is introduced to determine the reference current which is more precise than the available algorithms; and it leads to a better mitigation of the oscillations in ...
AN IMPROVED CONTROL ALGORITHM FOR …
Proposed approach allows to provide smooth control of reactive power, isolate the capacitor bank from harmonic currents and use a more effective low-voltage power components. View Show abstract
Spotted hyena optimizer algorithm for capacitor allocation in …
In 13, a cuckoo search algorithm (CSA) is proposed for optimal placement of shunt static capacitors in distribution networks to minimize the cost of reactive power in different loading conditions and improve the voltage profile.
A Review of Various Techniques for Optimal Placement of …
An evolutionary algorithm called as bacteria foraging algorithm is utilized to solving objective multivariable optimization problem and optimal node for the capacitor placement is described.
OPTIMAL LOCATION OF CAPACITORS AND CAPACITOR SIZING …
technique, krillherd algorithm for solving capacitor placement problem in radial distribution system (RDS). The algorithm ... power is exhausted as ohmic losses caused by reactive current flowing in the network. Shunt capacitors are used for the reduction …
Algorithm for passive reactive power compensation of an …
In this study, a calculation algorithm is proposed to obtain compensators for the inductive reactive power of the load, consisting only of single-phase capacitor banks. These …