NDLI: Model predictive control with constant switching frequency for four-leg DSTATCOM using three-dimensional space vector modulation

Content Provider	IET Digital Library
Author	Kumar, Alladi Pranay Kumar, Ganjikunta Siva Sreenivasarao, Dharmavarapu
Abstract	In this study, model predictive control (MPC) with constant switching frequency is proposed for four-leg distribution static compensator (FL-DSTATCOM) to compensate the current related power quality issues. MPC techniques having many advantages compared to conventional pulse width modulation and hysteresis control techniques. In MPC, the future behaviour of the controlled variable is predicted using the model of the system and a cost function is formed using reference and predicted variable. MPC for DSTATCOM applications consider the difference between the reference and actual DSTATCOM current as a cost function and selects the switching state which minimises the cost function. However, while using MPC, the switches of DSTATCOM operate in variable switching frequency and sometimes the values are also very high. Due to this reason higher switching losses, unequal stress appear across the inverter switches and it also reduces the lifetime of the switch. Therefore, in this study, the concept of three-dimensional space vector modulation is adopted to achieve a constant and user-defined switching frequency MPC for FL-DSTATCOM to conquer the limitations of conventional variable switching frequency MPC. The validation of the proposed work is achieved using simulation and experimental studies.
Starting Page	3571
Ending Page	3581
Page Count	11
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 17, Sep (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/17
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1775
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-06-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Actual DSTATCOM Current Constant Switching Frequency Constant User-defined Control of Electric Power System Controlled Variable Conventional Variable Switching Frequency MPC Cost Function Current Control Current Related Power Quality Issues Distribution Network DSTATCOM Application Electric Current Control FL-DSTATCOM Four-leg Distribution Static Compensator Four-leg DSTATCOM Hysteresis Control Technique Inverter Switches Invertors Model Predictive Control MPC Technique Optimal Control Other Power Apparatus And Electric Machine Power Converter Power Distribution Control Power Supplies to Apparatus Power Supply Quality Predictive Control Reason Higher Switching Loss Static VAr Compensators Switching State Three-dimensional Space Vector Modulation Voltage Control
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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