Design, Optimization and Experimental Verification of a Low Cost Two-Microcontroller Based Single-Phase STATCOM

Soodi, Hamed Atyia; Vural, Ahmet Mete

doi:10.1080/03772063.2021.1875270

Cited by 5 publications

(6 citation statements)

References 15 publications

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“…ZCD circuits are utilized in various applications involving AC source/load for synchronization. In [5], a ZCD circuit is utilized to synchronize the voltage source inverter with the grid in a static synchronous compensator system. In [6][7][8][9][10][11], ZCD circuits are used to control and synchronize various topologies of AC-AC converters.…”

Section: Motivation and Backgroundmentioning

confidence: 99%

“…They also got involved in frequency and phase angle measurement applications in [3,4]. ZCD circuits are usually built using optocouplers [5,11,19], operational amplifiers (op-amps) [19][20][21][22][23], or voltage sensors [6,10,24,25]. Optocoupler-based ZCD circuits provide the required level of isolation, however, they use diodes that lead to delayed ZCD due to the forward voltage drop.…”

Section: Motivation and Backgroundmentioning

confidence: 99%

“…Therefore, the hysteresis loop width can be calculated as per (5). 𝑉 𝐻𝐿𝑇𝑃 = 𝑉 𝐻𝑇𝑃 − 𝑉 𝐿𝑇𝑃 (5) The higher the noise in the input signal, the higher the hysteresis loop voltage 𝑉 𝐻𝐿𝑇𝑃 should be.…”

Section: Fig 2 a General Structure Of The Op-amp-based Zcd Circuit Wi...mentioning

confidence: 99%

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Experimental comparison of operational amplifier and voltage sensor-based zero-crossing detector circuits for power electronic converters

Al-Dori,

Vural

2023

Journal of Electrical Engineering

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Zero-crossing detection (ZCD) circuits are widely utilized to synchronize power electronics converters with the grid and measure frequency and phase angle. They are usually designed using an operational amplifier (op-amp) or a voltage sensor accompanied by a processing device. The performance profile of these circuits alters depending on many factors, including the input voltage level. An experimental comparison between the two ZCD circuits across various input voltage levels does not appear to be presented in the literature. This work experimentally compares the performance of an op-amp and an isolated voltage sensor-based ZCD circuits, considering their rise/fall latency and precision in detecting the zero-crossing points (ZCPs). The design process and the experimental results demonstrated that the op-amp-based ZCD circuit is susceptible to false and multiple detections of ZCPs and is best suited for relatively low-voltage applications. On the other hand, the voltage sensor-based ZCD circuit allows signal conditioning and is best suited for relatively high voltage applications.

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Section: Motivation and Backgroundmentioning

confidence: 99%

Section: Motivation and Backgroundmentioning

confidence: 99%

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Experimental comparison of operational amplifier and voltage sensor-based zero-crossing detector circuits for power electronic converters

Al-Dori,

Vural

2023

Journal of Electrical Engineering

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“…The most important thing in the solar PV integrated grid system is reactive power compensation. The real power only is supplied to the load by using a PV array system, and also excess real power is shared to the grid, and reactive power is not shared by the PV array system [8][9][10][11][12]. If the load requires any reactive power, then the grid has to provide reactive load power.…”

Section: Introductionmentioning

confidence: 99%

Compensation of Reactive Power in Grid- Connected Solar PV Array System Using STATCOM and Fixed Capacitor Bank

Ramesh¹,

Manjunatha²

2021

IJETT

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In this article, we propose reactive compensation for the PV integrated grid system using a STATCOM and a fixed capacitor bank. This paper presents a design calculation for a PV integrated grid system with a fixed capacitor and STATCOM. The proposed system is simulated and tested using the MATLAB Simulink software package. The suggested system has been evaluated under a variety of operating circumstances, including changing solar PV array irradiance and changing reactive load power. Detailed simulation and comparisons between the fixed capacitor and STATCOM represented.

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“…In [24], the authors have proposed a D-STATCOM based on CSC to enhance the power quality and consistency during step alter in load utilizing PI control. The CHBMC based D-STATCOM using PI control is proposed in [25] to enrich the DC voltage and reactive power control. The control parameters of the PI control are optimized by using the PSO.…”

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confidence: 99%

Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System

et al. 2021

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At present, the disturbances like the voltage fluctuations, resulting from the grid's complexities and unbalanced load conditions, create severe power quality concerns like total harmonic distortion (THD) and voltage unbalance factor (VUF) of the grid voltage. Though the custom power devices such as distribution-static compensators (D-STATCOMs) improve these power quality concerns, however, the accompanying controller plays the substantial role. Therefore, this paper proposes a fractional-order sliding mode control (FOSMC) for a D-STATCOM to compensate the low power distribution system by injecting/absorbing a specific extent of the reactive power under disturbances. FOSMC is a non-linear robust control in which the sliding surface is designed by using the Riemann-Liouville (RL) function and the chattering phenomenon is minimized by using the exponential reaching law. The stability of FOSMC is evidenced by employing the Lyapunov stability criteria. Moreover, the performance of the proposed FOSMC is further accessed while doing its parametric variations. The complete system is demonstrated with a model of 400V, 180kVA radial distributor along with D-STATCOM under two test scenarios in MATLAB/Simulink environment. The results of the proposed controller are compared with the fixed frequency sliding mode control (FFSMC) and conventional proportional-integral (PI) control. The results validate the superiority of the proposed controller in terms of rapid tracking, fast convergence, and overall damping with very low THD and VUF.

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Design, Optimization and Experimental Verification of a Low Cost Two-Microcontroller Based Single-Phase STATCOM

Cited by 5 publications

References 15 publications

Experimental comparison of operational amplifier and voltage sensor-based zero-crossing detector circuits for power electronic converters

Experimental comparison of operational amplifier and voltage sensor-based zero-crossing detector circuits for power electronic converters

Compensation of Reactive Power in Grid- Connected Solar PV Array System Using STATCOM and Fixed Capacitor Bank

Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System

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