Novel Compensation Methods Using Energy Storage System (ESS) in Islanded Unbalanced Single-/Three-Phase Multimicrogrids

Akdogan, Mehmet Emin; Ahmed, Sara

doi:10.1109/tia.2022.3175763

Cited by 10 publications

(4 citation statements)

References 33 publications

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“…Voltage stability is vital for efficiently transmitting active power in distribution networks [1,2]. However, with the large-scale access of non-linear loads, the reactive loads in the grid become more and more reactive, causing the low-voltage phenomenon to become more and more pronounced [3].…”

Section: Introductionmentioning

confidence: 99%

Multi‐layer and timescale optimal power flow control in capacitive coupling inverter‐based microgrids

Zhang,

Chen,

Deng

et al. 2024

IET Renewable Power Gen

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Compared with the traditional solution, the microgrid (MG) employed capacitive coupling inverters (CCIs) with higher reactive power capacity can effectively reduce the probability of low voltage. However, because of the special coupling structure, different power flow control methods will greatly affect the cost and operation efficiency of the CCI. A multi‐layer and timescale optimal power flow control considering inverter‐layer is therefore proposed in this paper. Firstly, the power output characteristics of CCI are analyzed, and the power flow control model of CCI with an energy storage unit is established. Secondly, an optimal control method on different timescales was proposed. By coordinating the active power output and the reserved charging state margin of the energy storage unit, the CCI‐MG reactive power regulation with the most economical and minimum loss was realized, so as to achieve long‐term voltage stability and dynamic satisfaction of load demands. Furthermore, the optimal power flow control of CCI is proposed. The simulation results show that the proposed method can effectively realize the optimal control of active and reactive power of MG, and also improve the voltage stability of AC bus under the economical operation of CCI.

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Section: Introductionmentioning

confidence: 99%

Multi‐layer and timescale optimal power flow control in capacitive coupling inverter‐based microgrids

Zhang,

Chen,

Deng

et al. 2024

IET Renewable Power Gen

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“…Three phase unbalance results in negative sequence voltage components in distribution networks. These negative sequence voltage components aggravate the energy loss, affecting the efficiency of motors and power electronic equipment such as frequency converters and shortening the service life of power electronics [5]. The flexible multi‐state switch (FMSS) is a latest power electronic device which can regulate the three‐phase power independently.…”

Section: Introductionmentioning

confidence: 99%

Three‐Phase Unbalance Reduction and Energy Optimization for Active Distribution Network Using Flexible Multi‐State Switch

Jin,

Yu,

Tai

et al. 2024

IEEJ Transactions Elec Engng

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Active distribution network is integrated with a large number of renewable energy sources and flexible loads such as electric vehicles(EVs). The unstable output of distributed generation and the random access to different phases cause three phase unbalance in the distribution network, which increase the energy loss and carbon emissions. Three phase unbalance reduction requires high real‐time dispatch and optimization of the power flow. This paper attempts to reduce the energy loss and carbon emission by using flexible multi‐state switch (FMSS) with optimal energy dispatch strategy. A multi‐objective optimization model is established based on second‐order cone relaxation to reduce the three‐phase unbalance and energy loss. EVs regulation strategy is proposed by analyzing their charging flexibility. A fast solution method is brought up based on second‐order cone model transformation. The effectiveness and rapidity of the method is verified by multiple cases. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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“…The energy storage converter has the four-quadrant high-efficiency operation characteristics of bidirectional active and reactive power regulation. In addition to the conventional application scenarios such as renewable energy consumption (Murty and Kumar, 2020) and peak-valley arbitrage (Das et al, 2018), the energy storage converter has significant economic and technical advantages in power quality control including the voltage deviation and voltage sag as well (Alshehri and Khalid, 2019;Guo et al, 2019;LI et al, 2019;Liu et al, 2021;Akdogan and Ahmed, 2022). Brenna et al (2009), LI et al (2019), and Akdogan and Ahmed (2022) reviewed the research status and development trend of energy storage system for solving steady-state and dynamic power quality problems of power grid, and analyzed the feasibility of energy storage to solve the voltage deviation, harmonic and three-phase unbalance problems.…”

Section: Introductionmentioning

confidence: 99%

“…In addition to the conventional application scenarios such as renewable energy consumption (Murty and Kumar, 2020) and peak-valley arbitrage (Das et al, 2018), the energy storage converter has significant economic and technical advantages in power quality control including the voltage deviation and voltage sag as well (Alshehri and Khalid, 2019;Guo et al, 2019;LI et al, 2019;Liu et al, 2021;Akdogan and Ahmed, 2022). Brenna et al (2009), LI et al (2019), and Akdogan and Ahmed (2022) reviewed the research status and development trend of energy storage system for solving steady-state and dynamic power quality problems of power grid, and analyzed the feasibility of energy storage to solve the voltage deviation, harmonic and three-phase unbalance problems. Liu et al (2021) proposed a day-ahead optimal scheduling model for integrated energy systems considering the potential economic benefits of energy storage, which can promote the active participation of energy storage in energy market scheduling for improving its profits.…”

Section: Introductionmentioning

confidence: 99%

Economic benefit evaluation model of distributed energy storage system considering custom power services

et al. 2023

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This paper proposes an economic benefit evaluation model of distributed energy storage system considering multi-type custom power services. Firstly, based on the four-quadrant operation characteristics of the energy storage converter, the control methods and revenue models of distributed energy storage system to provide reactive power compensation, new energy consumption, peak-valley arbitrage and other customized power services are analyzed. Secondly, an economic benefit evaluation model of custom power services is formulated, considering the life cycle degradation cost, investment payback period, net present value, and internal return rate of energy storage. Finally, demonstrate the effectiveness and superior performance of the proposed methodology through comparative studies on the economic benefits and practical value. The influence of reserve capacity ratio of energy storage converter, additional price for power quality management, peak-valley price difference, battery cost and project cycle on the annual return and internal rate of return is revealed through the sensitivity analysis, which provides the decision-making reference for battery selection and capacity allocation of distributed energy storage system participating in various custom power services.

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Novel Compensation Methods Using Energy Storage System (ESS) in Islanded Unbalanced Single-/Three-Phase Multimicrogrids

Cited by 10 publications

References 33 publications

Multi‐layer and timescale optimal power flow control in capacitive coupling inverter‐based microgrids

Multi‐layer and timescale optimal power flow control in capacitive coupling inverter‐based microgrids

Three‐Phase Unbalance Reduction and Energy Optimization for Active Distribution Network Using Flexible Multi‐State Switch

Economic benefit evaluation model of distributed energy storage system considering custom power services

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