Optimum Space Vector Computation Technique for Direct Power Control

Restrepo, José; Aller, J.M.; Viola, Julio; Bueno, Alexander; Habetler, T.G.

doi:10.1109/tpel.2009.2014953

Cited by 68 publications

(32 citation statements)

References 32 publications

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“…This subsystem will present also the possibility to emulate a distributed source, or act as an active filter. The capabilities of this subsystem are possible thanks to the use of direct power control with arbitrary active and reactive commands [44]. Figure 4 shows a diagram of voltage source converter operating with an optimal space vector selector for direct power control.…”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

“…Direct power control is based on the instantaneous apparent power [44,45]. Using the current and voltage space vectors definitions the instantaneous apparent power results in (1),…”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

“…A discrete time version of this equation can be obtained by applying a first order approximation, such as the approximation in (3) for the system current [44], …”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

“…After some mathematical manipulations, described in [44], for a given reference in active and reactive power, p ref and q ref , the required value in the following sampling period for the change in apparent power and its errors are given by (4) and (5),…”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

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Experimental framework for laboratory scale microgrids

Restrepo

2016

Rev. Fac. Ing. Univ. Antioquia

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Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

“…Direct power control is based on the instantaneous apparent power [44,45]. Using the current and voltage space vectors definitions the instantaneous apparent power results in (1),…”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

“…A discrete time version of this equation can be obtained by applying a first order approximation, such as the approximation in (3) for the system current [44], …”

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

Section: Controllable and Fixed Loads (Pq Subsystem)mentioning

confidence: 99%

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Experimental framework for laboratory scale microgrids

Restrepo

2016

Rev. Fac. Ing. Univ. Antioquia

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“…Meanwhile, this voltage oriented control divides alternating current into two parts, active and reactive segments, and then controls them separately with linear PI regulators, which achieves a good dynamic response by the inner current control loop with accurate decoupling calculations and proportional-integral regulating [9]. Some alternative control algorithms have been proposed such as instance predictive control [10], direct power control (DPC) [11], [12], deadbeat control [13]- [15], etc. The main principle of the DPC method is to directly regulate the instantaneous power instead of using the inner current loop, which will produce serious power ripples and a variable switching frequency along with pre-defined on-off forms and hysteresis comparators.…”

Section: Introductionmentioning

confidence: 99%

An Inductance Voltage Vector Control Strategy and Stability Study Based on Proportional Resonant Regulators under the Stationary αβ Frame for PWM Converters

Sun¹,

Wei²,

Gao³

et al. 2016

Journal of Power Electronics

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The mathematical model of a three phase PWM converter under the stationary αβ reference frame is deduced and constructed based on a Proportional-Resonant (PR) regulator, which can replace trigonometric function calculation, Park transformation, real-time detection of a Phase Locked Loop and feed-forward decoupling with the proposed accurate calculation of the inductance voltage vector. To avoid the parallel resonance of the LCL topology, the active damping method of the proportional capacitor-current feedback is employed. As to current vector error elimination, an optimized PR controller of the inner current loop is proposed with the zero-pole matching (ZPM) and cancellation method to configure the regulator. The impacts on system's characteristics and stability margin caused by the PR controller and control parameter variations in the inner-current loop are analyzed, and the correlations among active damping feedback coefficient, sampling and transport delay, and system robustness have been established. An equivalent model of the inner current loop is studied via the pole-zero locus along with the pole placement method and frequency response characteristics. Then, the parameter values of the control system are chosen according to their decisive roles and performance indicators. Finally, simulation and experimental results obtained while adopting the proposed method illustrated its feasibility and effectiveness, and the inner current loop achieved zero static error tracking with a good dynamic response and steady-state performance.

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Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

Eshkevari

Mosallanejad

Sepasian

2018

Circuit Theory & Apps

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This paper proposes a 1-kV single-phase neutral point clamped (NPC) PWM rectifier with a simple predictive power controller (PPC). It includes the three-level NPC converter and a simplified PPC. This system achieved to feature multi-level converters and the ability to provide high voltage gain, and a control with accurate and straightforward predictive strategy without the need of PLL and PI controller. It also takes advantages of a digital delay compensator unit, a user-friendly single-phase three-level space vector modulation (SVM) with neutral point balancing, and bidirectional active and reactive power flow. The proposed rectifier provides low input current harmonic distortion (THD < 2%), input sinusoidal current waveforms, zero or desired reactive power flow, fast dynamic response (=5 cycles), high stability, high efficiency, and the lower DC voltage ripple (<6%). Simulations have been carried out for a 1 kV/20 kW rectifier under different conditions. In this analysis, various practical conditions have been investigated and discussed in details. Furthermore, the proposed system was compared with the other literature and conventional methods.KEYWORDS direct power control, high voltage gain active rectifier, predictive power controller, single-phase PWM rectifier

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Optimum Space Vector Computation Technique for Direct Power Control

Cited by 68 publications

References 32 publications

Experimental framework for laboratory scale microgrids

Experimental framework for laboratory scale microgrids

An Inductance Voltage Vector Control Strategy and Stability Study Based on Proportional Resonant Regulators under the Stationary αβ Frame for PWM Converters

Design and analysis of a simple predictive power controller for a 1.0‐kV single‐phase NPC PWM rectifier

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