Journal ArticleDOI
The Application of Microgrids Based on Droop Control With Coupling Compensation and Inertia
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TLDR
A novel droop control with coupling compensation and inertia is proposed for a microgrid to achieve high dynamic performance and stability of distributed generation units and the simulation and experimental results validate the excellent performance of the MMPSO and the effectiveness of the novelDroop control method.Abstract:
A novel droop control with coupling compensation and inertia is proposed for a microgrid to achieve high dynamic performance and stability of distributed generation units. The coupling compensation scheme consists of angular frequency deviation compensation and voltage deviation compensation. They can reduce the influence of uncontrolled power coupling. The inertia scheme consists of angular frequency inertia and voltage inertia. They can slow down the change rates of the angular frequency and voltage and reduce their fluctuation magnitudes. The combination of this novel droop control method and virtual impedance can help achieve accurate power sharing. An improved particle swarm optimization (PSO) algorithm with multiswarm and multivelocity (MMPSO) is also proposed to optimize the parameters of the coupling compensation and inertia with high precision and high reliability. A simulated model and experiment platform of a microgrid are set up for testing, and the simulation and experimental results validate the excellent performance of the MMPSO and the effectiveness of the novel droop control method.read more
Citations
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Journal ArticleDOI
A comprehensive review of virtual synchronous generator
TL;DR: An overview of different topologies to virtual inertia is presented along with a detailed description of the VSG structure, and VSG control defining active and reactive power control, and voltage and frequency control is explained in detail.
Journal ArticleDOI
Droop Control Strategy Incorporating Coupling Compensation and Virtual Impedance for Microgrid Application
TL;DR: An improved droop control strategy incorporating the coupling compensation and virtual impedance and an improved particle swarm optimization algorithm incorporating the multi-swarm and multi-velocity is proposed to improve the efficiency and stability of the microgrid.
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Modeling and Stability Analysis of Inverter-Based Microgrid Under Harmonic Conditions
TL;DR: The modeling and analysis of the inverter-based MGs under harmonic conditions and the dynamic behavior of the microgrid is investigated via small-signal analysis, observing that the virtual impedance for harmonic compensation brings inter-inverter oscillations on harmonic domain.
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Power Coupling Mechanism Analysis and Improved Decoupling Control for Virtual Synchronous Generator
TL;DR: A q-axis voltage-drop-based power decoupling control (QVPDC) is proposed to further reduce the power coupling, which does not consider the d- axis voltage drop when applying the virtual inductor.
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Grid-Supporting Battery Energy Storage Systems in Islanded Microgrids: A Data-Driven Control Approach
TL;DR: A data-driven grid-supporting control system for battery energy storage systems, which requires no changes to the inverters inner real and reactive power control loops compared with a conventional grid- supporting inverter, is proposed.
References
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Proceedings ArticleDOI
A modified particle swarm optimizer
Yuhui Shi,Russell C. Eberhart +1 more
TL;DR: A new parameter, called inertia weight, is introduced into the original particle swarm optimizer, which resembles a school of flying birds since it adjusts its flying according to its own flying experience and its companions' flying experience.
Journal ArticleDOI
Synchronverters: Inverters That Mimic Synchronous Generators
Qing-Chang Zhong,George Weiss +1 more
TL;DR: The idea of operating an inverter to mimic a synchronous generator (SG) is motivated and developed, and the inverters that are operated in this way are called synchronverters.
Journal ArticleDOI
Comparison of Dynamic Characteristics Between Virtual Synchronous Generator and Droop Control in Inverter-Based Distributed Generators
TL;DR: In this article, an inertial droop control method is proposed based on the comparison of dynamic characteristics of both control methods, in both stand-alone mode and synchronous-generator-connected mode, to understand the differences caused by swing equation.
Journal ArticleDOI
Power System Stabilization Using Virtual Synchronous Generator With Alternating Moment of Inertia
TL;DR: In this article, a virtual synchronous generator (VSG) with alternating moment of inertia (OMO) was proposed to enhance the response of the virtual machine in tracking the steady-state frequency.
Journal ArticleDOI
A novel control to actively damp resonance in input LC filter of a three-phase voltage source converter
V. Blasko,V. Kaura +1 more
TL;DR: In this paper, a control strategy for actively damping high-frequency resonance (above 1.5 kHz) in the input LC filter is presented, which prevents pollution of the utility by the current ripple due to the PWM switching.