An analytical method of switching waveform design for selective harmonic elimination

Bhadra, Sraddhanjoli; Patangia, Hirak

doi:10.1016/j.matcom.2020.04.018

Cited by 5 publications

(7 citation statements)

References 19 publications

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“…The expression in generalized form for switching angles is shown in (36), and the values of various coefficients are given in Table 2. The fitted and actual switching angles plot for switching angles as function of modulation index are shown in Figure 14.…”

Section: Bipolar Waveformsmentioning

confidence: 99%

“…The modulation index thus obtained is used to determine the value of the switching angle patterns on-line using least square regression. The real time switching angle values corresponding to the modulation index obtained from PI controller are calculate using (36). For N ¼ 5, the value of switching angles are obtained from (37).…”

Section: Closed Loop Operation and Online Implementationmentioning

confidence: 99%

“…35 This technique is more efficient as it does not find the value of switching angles, which makes the coefficients zero but tries to locate those values of switching angles that minimize the function. 36 This technique is able to calculate the switching angles even after that point where other methods are not able to converge. In particular, overmodulation region, where harmonic elimination solutions do not exist, this technique is capable of locating the possible switching angles where the value of such harmonics is kept to a minimum.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A novel adaptive invasive weed optimization technique and least square regression for harmonics minimization in standalone PV applications

Ganie

Bhat

Ahmad

2022

Circuit Theory & Apps

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A novel adaptive invasive weed optimization technique is presented in this paper for harmonics minimization in standalone system based on three-phase two-level voltage source inverter. The low switching frequency techniques are preferred to produce good quality waveform and at the same time to reduce the switching losses and device stresses. Nonetheless, the challenging task is to compute the firing angles from the set of highly nonlinear transcendental system of equations. The proposed technique shows faster convergence and capability to compute in wide rage of modulation index. Moreover, multiple solutions also have been obtained in most of the range of modulation index. Various cases have been evaluated and simulation results have been given to validate conceptual results. The closed loop operation and the real-time implementation of the proposed technique under dynamic operating conditions have been verified for a three-phase induction motor load using PI controller.The least square regression is used for real-time implementation of the proposed technique. The TMS320F2812 digital signal processor (DSP) has been employed to generate the pulse width modulated pulses generated from the computational results. The experimental results obtained are in very close concurrence to the computational and simulation results.

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Section: Bipolar Waveformsmentioning

confidence: 99%

Section: Closed Loop Operation and Online Implementationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A novel adaptive invasive weed optimization technique and least square regression for harmonics minimization in standalone PV applications

Ganie

Bhat

Ahmad

2022

Circuit Theory & Apps

View full text Add to dashboard Cite

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“…This requires accurate tracking of the frequency and phase of the voltage in the power grid to ensure the accuracy of harmonic detection [6][7] . In order to obtain better phase-locked accuracy of phase-locked loop (PLL) [8,9] , the paper increases cascade harmonic cancellation modules (HCM) [10,11] to improve DSOGI-PLL. This paper first analyses the working principle of DSOGI-PLL, then describes the modified DSOGI-PLL in detail, and finally builds a simulation model to verify the feasibility of the modified DSOGI-PLL.…”

Section: Introductionmentioning

confidence: 99%

Simulation Research on Phase Locking Technology Based on Modified DSOGI-PLL

Huang

Zhang

Chen

et al. 2022

J. Phys.: Conf. Ser.

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For complex working conditions in power grid, it is easy to produce a large number of harmonics, and the double second-order generalized integrator phase-locked loop (DSOGI-PLL) cannot effectively suppress low-order harmonics, a new DSOGI-PLL based on modified sequential cascaded harmonic cancellation module is proposed in this paper. By designing a harmonic cancellation module that eliminates specific frequency harmonics, different frequency harmonic cancellation modules are cascaded in order from small to large to eliminate low frequency harmonics near the basic frequency. By building the simulation model, the comparison analysis verifies that the modified DSOGI-PLL has higher accuracy in tracking the frequency and phase of the voltage signal, and is more suitable for the power grid.

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“…[41][42][43][44] For the case in which EV chargers are used as APFs, [45][46][47][48] they success in reducing harmonic content but they also involve a high development cost, even more if they are designed for both reducing harmonics and giving grid support. 49,50 Many control strategies focus on selective harmonic elimination (SHE) algorithms, [51][52][53][54] but most are based on multilevel converters, which despite their better harmonic response are more expensive in cost, and require more volume and weight as they consist of more elements. 55 In this scenario, analyzing the above mentioned methods, it can be said that they are either too complicated to implement or require additional devices that make the installation more expensive, larger and heavier.…”

Section: Introductionmentioning

confidence: 99%

Vehicle‐to‐grid charging control strategy aimed at minimizing harmonic disturbances

et al. 2021

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This paper presents the design and implementation of a control for an electric vehicle charger to provide vehicle to grid (V2G) services while reducing the current total harmonic distortion (THD). The control is composed of two current loops. The main one controls the active and reactive powers in a decoupled way, and the second one, focuses on the reduction of the fifth order harmonic component. After explaining the mathematical modelling, the meth-

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An analytical method of switching waveform design for selective harmonic elimination

Cited by 5 publications

References 19 publications

A novel adaptive invasive weed optimization technique and least square regression for harmonics minimization in standalone PV applications

A novel adaptive invasive weed optimization technique and least square regression for harmonics minimization in standalone PV applications

Simulation Research on Phase Locking Technology Based on Modified DSOGI-PLL

Vehicle‐to‐grid charging control strategy aimed at minimizing harmonic disturbances

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