Design, Simulation, and Analog Circuit Implementation of a Three-Phase Shunt Active Filter Using the ${\rm I}\cos\Phi$ Algorithm

Bhuvaneswari, G.; Nair, Manjula G.

doi:10.1109/tpwrd.2007.908789

Cited by 110 publications

(34 citation statements)

References 14 publications

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“…The outer voltage loop regulates the square of v c to a reference signal v 2 ref with a simple PI compensator [33], [34]. Using the square of v c instead of v c , the design of this loop is simpler, as discussed in Section III.…”

Section: A Indirect Current-control Methodsmentioning

confidence: 99%

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Selective Harmonic-Compensation Control for Single-Phase Active Power Filter With High Harmonic Rejection

Miret

Castilla

Matas

et al. 2009

IEEE Trans. Ind. Electron.

164

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Abstract-This paper presents a linear current control scheme for single-phase active power filters. The approach is based on an outer voltage loop, an inner current loop, and a resonant selective harmonic compensator. The design of the control parameters is carried out using conventional linear techniques (analysis of loop gain and other disturbance-rejection transfer functions). The performance of the proposed controller is evaluated and compared with two reference controllers: a basic control and an advanced repetitive control. In comparison with these controllers, the proposed control scheme provides additional attenuation to the harmonics coming from the load current, the grid voltage, and the reference signal, resulting in a grid current with lower harmonic distortion. Experimental results are reported in order to validate this paper.

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Section: A Indirect Current-control Methodsmentioning

confidence: 99%

“…From the Tellegen theorem, the energy balance of the APF system, assuming no losses and negligible energy stored in the inductor, can be expressed as [33], [34] d dt…”

Section: Appendix Small-signal Model Of the Outer Voltage Loopmentioning

confidence: 99%

Selective Harmonic-Compensation Control for Single-Phase Active Power Filter With High Harmonic Rejection

Miret

Castilla

Matas

et al. 2009

IEEE Trans. Ind. Electron.

164

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show abstract

“…On the other hand, when the load is unbalanced, there will be current in neutral wire. the total power of zero sequence component will be obtained from (14). To decrease the neutral current, the total zero sequence power must be supplied by shunt APF and this index must also be injected into main axis.…”

Section: Reference Current Signal Generation Of the Shunt Apfmentioning

confidence: 99%

“…In the past few years, several control strategies have been presented in literature for determining the voltage and current reference signals. Some of the most common strategies include p-q-r theory [10], improved single-phase p-q theory [11], synchronous reference frame (SRF) theory [12], symmetric component transformation [13], Icos theory [14,15] and some other innovative control methods [16,17]. In [18], the one-cycle control approach (without calculating the reference) is used for controlling a three-phase four-wire UPQC.…”

Section: Introductionmentioning

confidence: 99%

Improving the performance of UPQC under unbalanced and distortional load conditions: A new control method

Ghanizadeh

Ebadian²

2015

JAIDM

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This paper presents a new control method for a three-phase four-wire Unified Power Quality Conditioner (UPQC) to deal with the problems of power quality under distortional and unbalanced load conditions. The proposed control approach is the combination of instantaneous power theory and Synchronous Reference Frame (SRF) theory which is optimized by using a self-tuning filter (STF) and without using load or filter currents measurement. In this approach, load and source voltages are used to generate the reference voltages of series active power filter (APF) and source currents are used to generate the reference currents of shunt APF. Therefore, the number of current measurements is reduced and system performance is improved. The performance of proposed control system is tested for cases of power factor correction, reducing source neutral current, load balancing and current and voltage harmonics in a three-phase four-wire system for distortional and unbalanced loads. Results obtained through MATLAB/SIMULINK software show the effectiveness of proposed control technique in comparison to the conventional p-q method.

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“…To extract the fundamental source voltages as reference signals for series APF, a zero-crossing detector and sample-and-hold circuits are used. The control of shunt APF is based on I CosΦ theory [20,21].…”

Section: Introductionmentioning

confidence: 99%

A Novel Control Strategy of Three-phase, Four-wire UPQC for Power Quality Improvement

Pal¹,

Swarup²,

Singh³

2012

Journal of Electrical Engineering and Technology

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-The current paper presents a novel control strategy of a three-phase, four-wire Unified Power Quality (UPQC) to improve power quality. The UPQC is realized by the integration of series and shunt active power filters (APF) sharing a common dc bus capacitor. The realization of shunt APF is carried out using a three-phase, four-leg Voltage Source Inverter (VSI), and the series APF is realized using a three-phase, three-leg VSI. To extract the fundamental source voltages as reference signals for series APF, a zero-crossing detector and sample-and-hold circuits are used. For the control of shunt APF, a simple scheme based on the real component of fundamental load current (I CosΦ) with reduced numbers of current sensors is applied. The performance of the applied control algorithm is evaluated in terms of power-factor correction, source neutral current mitigation, load balancing, and mitigation of voltage and current harmonics in a three-phase, four-wire distribution system for different combinations of linear and non-linear loads. The reference signals and sensed signals are used in a hysteresis controller to generate switching signals for shunt and series APFs. In this proposed UPQC control scheme, the current/voltage control is applied to the fundamental supply currents/voltages instead of fast-changing APF currents/voltages, thus reducing the computational delay and the required sensors. MATLAB/Simulink-based simulations that support the functionality of the UPQC are obtained.

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Design, Simulation, and Analog Circuit Implementation of a Three-Phase Shunt Active Filter Using the ${\rm I}\cos\Phi$ Algorithm

Cited by 110 publications

References 14 publications

Selective Harmonic-Compensation Control for Single-Phase Active Power Filter With High Harmonic Rejection

Selective Harmonic-Compensation Control for Single-Phase Active Power Filter With High Harmonic Rejection

Improving the performance of UPQC under unbalanced and distortional load conditions: A new control method

A Novel Control Strategy of Three-phase, Four-wire UPQC for Power Quality Improvement

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