Application of Coordinated SOFC and SMES Robust Control for Stabilizing Tie-Line Power

Zhang, Ning; Gu, Wei; Yu, Haojun; Liu, Wei

doi:10.3390/en6041902

Cited by 13 publications

(6 citation statements)

References 25 publications

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“…In [11] the control strategy of power sharing between the utility grid and the micro-grid based on a back-to-back converter that suppresses the interference on the micro-grid caused by the frequency change at the PCC was proposed. In view of the energy storage problem in the micro-grid, Shi et al [12] proposed a novel extended-single-phase shift control strategy based on an efficient bidirectional full-bridge DC-DC converter; meanwhile, Zhang et al [13] presented a coordination control strategy of solid oxide fuel cells and superconducting energy storage.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a High Quality Power Supply Scheme for Distributed Generation in a Micro-Grid

Xia

2013

Energies

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A low carbon, high efficiency and high quality power supply scheme for Distributed Generation (DG) in a micro-grid is presented. A three-phase, four-leg DG grid-interfacing converter based on the improved structure of a Unified Power Quality Conditioner (UPQC, including a series converter and a parallel converter) is adopted, and improved indirect and direct control strategies are proposed. It can be observed that these strategies effectively compensate for voltage sags, voltage swells and voltage distortion, as well as voltage power quality problems resulting from the nonlinear and unbalanced loads in a micro-grid. While solving the coupling interference from series–parallel, the grid-interfacing converter can achieve proper load power sharing in a micro-grid. In particular, an improved minimum-energy compensation method is proposed that can overcome the conventional compensation algorithm defects, ensure the load voltage’s phase angle stability, improve the voltage compensating ability and range, reduce the capacity and cost of converters, and reduce the shock of micro-grid switching between grid-connected mode and islanded mode. Moreover, the advantages/disadvantages and application situation of the two improved control strategies are analyzed. Finally, the performance of the proposed control strategies has been verified through a MATLAB/Simulink simulation under various operating conditions

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Section: Introductionmentioning

confidence: 99%

Design and Implementation of a High Quality Power Supply Scheme for Distributed Generation in a Micro-Grid

Xia

2013

Energies

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“…In these references, fuel cells were regarded as the best partner for the utilization of hydrogen. In addition, there are some reports focusing on battery energy storage (BES), magnetic energy storage (SMES), and flywheel energy storage (FES) [21][22][23][24]. Their cooperation with renewable energy sources for the promotion of the system performance has been preliminarily confirmed.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Electric Energy Storages and Thermal Energy Auxiliaries for Improving Wind Power Integration in the Cogeneration System

Chen

Lei

2018

Energies

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Abstract:In regards to the cogeneration system in Northern China, mainly supported by combined heat and power (CHP) plants, it usually offers limited operation flexibility due to the joint production of electric and thermal power. For that large-scale wind farms included in the cogeneration system, a large amount of wind energy may have to be wasted. To solve this issue, the utilization of the electric energy storages and the thermal energy auxiliaries are recommended, including pumped hydro storage (PHS), compressed air energy storage (CAES), hydrogen-based energy storage (HES), heat storage (HS), electric boilers (EB), and heat pumps (HP). This paper proposes a general evaluation method to compare the performance of these six different approaches for promoting wind power integration. In consideration of saving coal consumption, reducing CO 2 emissions, and increasing investment cost, the comprehensive benefit is defined as the evaluation index. Specifically, a wind-thermal conflicting expression (WTCE) is put forward to simplify the formulation of the comprehensive benefit. Further, according to the cogeneration system of the West Inner Mongolia (WIM) power grid, a test system is modelled to perform the comparison of the six different approaches. The results show that introducing the electric energy storages and the thermal energy auxiliaries can both contribute to facilitating wind power integration, and the HP can provide the best comprehensive benefit.

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“…In 1981, the first SMES application in a power system was successfully tested by the Bonneville Power Administration (BPA) [5]. In recent years, experimental projects with new types of SMES devices for power quality and stability enhancement have been developed in East Asia [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Mechanism Analysis and Experimental Validation of Employing Superconducting Magnetic Energy Storage to Enhance Power System Stability

et al. 2015

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This paper investigates the mechanism analysis and the experimental validation of employing superconducting magnetic energy storage (SMES) to enhance power system stability. The models of the SMES device and the single-machine infinite-bus (SMIB) system with SMES are deduced. Based on the model of the SMIB system with SMES, the action mechanism of SMES on a generator is analyzed. The analysis takes the impact of SMES location and the system operating point into consideration, as well. Based on the mechanism analysis, the P-controller and Q-controller are designed utilizing the phase compensation method to improve the damping of the SMIB system. The influence of factors, such as SMES location, transmission system reactance, the dynamic characteristics of SMES and the system operating point, on the damping improvement of SMES, is investigated through root locus analysis. The simulation results of the SMIB test system verify the analysis conclusions and controller design method. The laboratory results of the 150-kJ/100-kW high-temperature SMES (HT-SMES) device validate that the SMES device can effectively enhance the damping, as well as the transient stability of the power system. OPEN ACCESSEnergies 2015, 8 657

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Application of Coordinated SOFC and SMES Robust Control for Stabilizing Tie-Line Power

Cited by 13 publications

References 25 publications

Design and Implementation of a High Quality Power Supply Scheme for Distributed Generation in a Micro-Grid

Design and Implementation of a High Quality Power Supply Scheme for Distributed Generation in a Micro-Grid

Comparative Study of Electric Energy Storages and Thermal Energy Auxiliaries for Improving Wind Power Integration in the Cogeneration System

Mechanism Analysis and Experimental Validation of Employing Superconducting Magnetic Energy Storage to Enhance Power System Stability

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