Simulation and Experimental Study of a Reactively Loaded PWM Converter as a Fast Source of Reactive Power

Wyk, J.D. van; Marshall, D.A.; Boshoff, S.

doi:10.1109/tia.1986.4504839

Cited by 37 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Static var generators (SVGs) using voltage-source inverters have been widely accepted as the next generation reactive power controllers of power systems to replace the conventional var compensators, such as thyristor switched capacitors (TSC's) and thyristor controlled reactors (TCR's) [7,[44][45][46][47][48][49][50][51]. Fig.…”

Section: Iia Motivations Of Cascade Multilevel Invertermentioning

confidence: 99%

Recent advances in multilevel converter/inverter topologies and applications

Peng

Qian

Cao

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

216

View full text Add to dashboard Cite

Multilevel converters and inverters have become the enabling power conversion technology for high voltage high power applications in today's power systems and large motor drives. Although the neutral-point clamped (NPC, a 3-level) inverter was invented in 1979, the multilevel concept was not formally established until the early 1990s when the diode-clamped multilevel inverter, the capacitor-clamped (or flying capacitor) multilevel inverter, and the cascade multilevel inverter were proposed and fully studied. In this paper, we will first focus on the research advances in developing the cascade multilevel inverter topologies and their system configurations for power system applications from reviewing the traditional power conversion technology and the needs to eliminate zigzag transformers required in the traditional technology, to how to configure the cascade multilevel inverters to deal with unbalance and real-power (or active-power) flow. These research breakthroughs have made the cascade multilevel inverters a perfect topology for power system applications such as FACTS devices. For example, the cascade multilevel inverter based 75 Mvar and 50 Mvar STATCOMs have been reported. Since the mid of 1990s, many contributors have made great effort in developing more multilevel inverter topologies because all the three multilevel topologies have certain limitations and are not operable in some applications. Then, we will review the generalized multilevel inverter topology, its topological advances to other multilevel inverters/ converters, and their potential applications. This paper also provides insights to how multilevel inverter topologies are related to each other and their pros and cons in practical applications.Index Terms-capacitor clamped multilevel, cascaded multilevel, diode clamped multilevel, modular multilevel converter.

show abstract

Section: Iia Motivations Of Cascade Multilevel Invertermentioning

confidence: 99%

Recent advances in multilevel converter/inverter topologies and applications

Peng

Qian

Cao

2010

The 2010 International Power Electronics Conference - ECCE ASIA -

216

View full text Add to dashboard Cite

show abstract

“…Power loss in the resistance is given by (12) Average rate of change of energy associated with the inductor Since is constant for a particular operating point (13) Average rate at which energy is being absorbed by the capacitor (14) where is the instantaneous dc-link voltage. Equating average rate of change of energy associated with ac link and dc link, the relation between and is obtained for a particular operating point, which is given by (15) If a small perturbation is applied in the inphase component of the compensator current, about a steady-state operating point , the average dc-link voltage will also get perturbed by a small amount about its steady-state operating point .…”

Section: Mathematical Modelmentioning

confidence: 99%

An instantaneous reactive volt-ampere compensator and harmonic suppressor system

Chatterjee

Fernandes

Dubey

1999

IEEE Trans. Power Electron.

122

View full text Add to dashboard Cite

Abstract-A novel control method for a reactive volt-ampere compensator and harmonic suppressor system is proposed. It operates without sensing the reactive volt-ampere demand and nonlinearities present in the load. The compensation process is instantaneous, which is achieved without employing any complicated and involved control logic. The compensator is operated in cycle-by-cycle reference-current-controlled mode to achieve the instantaneous compensating feature. A mathematical model of the scheme is developed. Detailed analysis and simulation results are presented. A laboratory prototype of the compensator is developed to validate the results.

show abstract

“…In the literature [6], Akagi et al proposed a strategy based on an algorithm called "P-Q theory". Since then, the P-Q theory has inspired many works dealing with active filter control strategies [6][7][8][9][10][11][12][13][14][15][16][17]. As well, control based sliding mode approach [18] and repetitive control [19] have been presented.…”

Section: Introductionmentioning

confidence: 99%

Predictive Approach for Power Quality Improvement Based Direct Power Control

Medouce¹,

Benalla²

2018

IJPEDS

View full text Add to dashboard Cite

The extensive use of non-linear loads in industry becomes increasingly a serious problem that affects the quality of energy delivered to customers. Therefore, the shunt active power filter (SAPF) has emerged as an important industrial tool to eliminate induced harmonic currents and compensating of reactive power. This paper proposes an improved control configuration for SAPF based on a modern technique called predictive direct power control (Predictive-DPC). The principle of this control is based on the direct regulation of the instantaneous active and reactive powers to guarantee a good energy quality on the grid side. For this purpose the appropriate average voltage vector which cancels power tracking errors is calculated by a simple predictive model at the bigining of each control period. This type of control includes various features such as the lack of look up table (LUTs) and closed current loops and the constant switching frequency is achieved through the use of PWM modulation. The results of the simulation process show a high performance in the steady and transient state function for predictive-DPC control that might be a reasonable alternative to conventional DPC in the field of active power filtering.

show abstract

Simulation and Experimental Study of a Reactively Loaded PWM Converter as a Fast Source of Reactive Power

Cited by 37 publications

References 9 publications

Recent advances in multilevel converter/inverter topologies and applications

Recent advances in multilevel converter/inverter topologies and applications

An instantaneous reactive volt-ampere compensator and harmonic suppressor system

Predictive Approach for Power Quality Improvement Based Direct Power Control

Contact Info

Product

Resources

About