scholarly journals SIL Modeling of Shunt Harmonics Active Filter

2020 ◽  
Author(s):  
Shweta Dhiman ◽  
A. Gupta ◽  
J. Chandle
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Active Filter ◽  
Control Logic ◽  
Flexible Control ◽  
Instantaneous Power ◽  
Electrical Stress ◽  
Time Simulation ◽  
System Analyst ◽  
Industrial Standards

The evolution in semiconducting devices has introduced flexible control on a system but it has also penetrated harmonics in the grid, which results in extra electrical stress and load. Limiting the presence of harmonics in the grid and low power factor maintained by consumers has become of utmost priority to the power system analyst. Hence, the need for Active Filter emerges. Here, a real-time simulation, in dSPACE- Targetlink, of shunt harmonics active filter is propounded. The possible basic control strategy used in the simulation is ”Instantaneous Power Theory”. Control logic of two features of Active Filter viz., Global Harmonics Elimination, and Reactive Power Compensation are produced in the paper. The results obtained in ”Software In Loop Mode” of dSPACE are discussed and verified in detail. The richness of the code generated by the dSPACE- Target link can be reasoned by observing the results which are well aligned with the industrial standards regarding the harmonics.

The Fuzzy PI Control for the DSTATCOM Based on the Instantaneous Power Balance

2013 ◽  
Vol 648 ◽  
pp. 357-360
Author(s):  
Deng Xiang Yang ◽  
Guang Yao Zhu ◽  
Qun Feng Zhu
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Voltage Control ◽  
Access Point ◽  
Public Access ◽  
Power Balance ◽  
Pi Control ◽  
Voltage Control Strategy ◽  
Instantaneous Power ◽  
Direct Voltage

Distribution Static Synchronous Compensator (DSTATCOM) to the public through the connection point into the reactive power can adjust the voltage of public access point, so as to meet the voltage quality. First of all papers DSTATCOM system in accordance with the instantaneous power balance theory derived DSTATCOM voltage used to control the direct voltage control strategy. In the control strategy without current detection circuit with traditional cascade control, compared with the control is simple, the advantages of fast response. And voltage control strategy for the direct control of the controller by the system parameters impact the performance of larger defects, a direct voltage DSTATCOM fuzzy PI control strategy, so that the instantaneous power balance in accordance with the direct voltage control has better control performance.

Implementation of a New Hysteresis Control Strategy for Autonomous Parallel Active Filter

2005 ◽  
Vol 4 (1) ◽  
Author(s):  
Tarak Benslimane ◽  
Kamel Aliouane ◽  
Boukhmis Chetate
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Active Filter ◽  
Current Control ◽  
Dc Voltage ◽  
Hysteresis Current Control ◽  
Harmonic Currents ◽  
Data Acquisition Board ◽  
Hysteresis Control

The goal of this paper is to evaluate performances of a new hysteresis current control strategy for autonomous three phase parallel active filter in harmonic currents elimination (by simulation an experiment) as well as the reactive power compensation (by simulation). This strategy, called the Optimized Hysteresis Control Strategy, is based on currents errors and their derivatives calculation each time the zero voltage vector is set at the AC side of the inverter of the active filter. The harmonic currents are identified using the method of the instantaneous real and imaginary powers. A voltage regulation loop is used to regulate the condenser DC voltage which ensure a constant DC voltage to the inverter. A digital software C++ simulation program was developed and implemented via the data acquisition board (AT-MIO-16X DAQ from National Instruments). Simulation and experimental results are presented.

Research on Flexible Grid-Connection Control Strategy of Distributed Power in New Energy Micro-Grid

2013 ◽  
Vol 433-435 ◽  
pp. 1263-1270
Author(s):  
Guo Wen Hu ◽  
Lin Wang ◽  
Yin Jie Wang
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Control Method ◽  
Balance Of Power ◽  
Distributed Power ◽  
Flexible Control ◽  
Grid Connection ◽  
Micro Grid ◽  
The Impact ◽  
Flexible Grid

Abstract: The point of the micro-grid distributed power's control is grid-connected inverter. The flexible grid-connection control technology provided an optimizing control method between distributed power and micro-grid and between micro-grid and power system. The flexible grid-connection control strategy includes flexible grid-connection control and flexible islanding control. The flexible grid-connection control achieves the good performance by means of regulation of the active and reactive power of micro-grid, while inhibiting the impact of impulse current, smooth power output, forecasting load and micro-grid power capacity. Based on the flexible grid-connection technology research of distributed power in micro-grid, the flexible master-slave method was presented based on PQ control, and the balance of power and the flexible control in micro-grid has been reached by it. The emulation and experiment results verify that the flexible master-slave method is effective; the balance of power, the flexible control when micro-grid is in islanding mode has been reached; the feasibility of the flexible master-slave method to stabilize the system was showed.

scholarly journals Using Energy Storage Inverters of Prosumer Installations for Voltage Control in Low-Voltage Distribution Networks

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1121
Author(s):  
Rozmysław Mieński ◽  
Przemysław Urbanek ◽  
Irena Wasiak
Keyword(s):  
Energy Storage ◽  
Control Strategy ◽  
Reactive Power ◽  
Low Voltage ◽  
Storage System ◽  
Distribution Networks ◽  
Energy Storage System ◽  
Voltage Regulation ◽  
Active Power ◽  
Total Power

The paper includes the analysis of the operation of low-voltage prosumer installation consisting of receivers and electricity sources and equipped with a 3-phase energy storage system. The aim of the storage application is the management of active power within the installation to decrease the total power exchanged with the supplying network and thus reduce energy costs borne by the prosumer. A solution for the effective implementation of the storage system is presented. Apart from the active power management performed according to the prosumer’s needs, the storage inverter provides the ancillary service of voltage regulation in the network according to the requirements of the network operator. A control strategy involving algorithms for voltage regulation without prejudice to the prosumer’s interest is described in the paper. Reactive power is used first as a control signal and if the required voltage effect cannot be reached, then the active power in the controlled phase is additionally changed and the Energy Storage System (ESS) loading is redistributed in phases in such a way that the total active power set by the prosumer program remains unchanged. The efficiency of the control strategy was tested by means of a simulation model in the PSCAD/EMTDC program. The results of the simulations are presented.

scholarly journals Improved Coordinated Control Strategy for Hybrid STATCOM Using Required Reactive Power Estimation Method

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 84506-84515
Author(s):  
Sungyoon Song ◽  
Sungchul Hwang ◽  
Gilsoo Jang ◽  
Minhan Yoon
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Estimation Method ◽  
Coordinated Control ◽  
Power Estimation

A Feedback Control Strategy for Torque-Vectoring of IWM Vehicles

2014 ◽  
Author(s):  
Francesco Braghin ◽  
Edoardo Sabbioni ◽  
Gabriele Sironi ◽  
Michele Vignati
Keyword(s):  
Electric Vehicles ◽  
Automotive Industry ◽  
Control Strategy ◽  
Control Logic ◽  
Power Train ◽  
Vehicle Handling ◽  
Torque Vectoring ◽  
Feedback Control Strategy ◽  
Object Of Study ◽  
Yaw Moment

In last decades hybrid and electric vehicles have been one of the main object of study for automotive industry. Among the different layout of the electric power-train, four in-wheel motors appear to be one of the most attractive. This configuration in fact has several advantages in terms of inner room increase and mass distribution. Furthermore the possibility of independently distribute braking and driving torques on the wheels allows to generate a yaw moment able to improve vehicle handling (torque vectoring). In this paper a torque vectoring control strategy for an electric vehicle with four in-wheel motors is presented. The control strategy is constituted of a steady-state contribution to enhance vehicle handling performances and a transient contribution to increase vehicle lateral stability during limit manoeuvres. Performances of the control logic are evaluated by means of numerical simulations of open and closed loop manoeuvres. Robustness to friction coefficient changes is analysed.

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