Microgrid operation optimization with regulation of grid tie-line power fluctuations and risk management

Shen, Jingshuang; Jiang, Chuanwen; Liu, Yangyang; Wang, Xu; Qian, Jie

doi:10.1002/etep.2203

Cited by 11 publications

(8 citation statements)

References 20 publications

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“…In order to present the effectiveness of the proposed methodology, the introduced approach for energy management of CMGs in which CMGs are considered as energy hubs is compared with another method proposed in Shen et al The obtained results are reported in Table , where CMGs electric and thermal energies are optimized separately in “Case I”. Moreover, CMGs are considered as energy hubs in “Case II”.…”

Section: Resultsmentioning

confidence: 99%

“…In this manuscript, the optimal operation management of CMGs is investigated that is regarded as one of the main challenges for CMGs. Several research have been conducted to fix issues relevant to technical, economic, and environmental aspects of CMGs operation . In Xiang et al, a scenario‐based robust energy management strategy is proposed considering the worst‐case amount of demanded power and renewable generation.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, a distributed energy management approach is introduced in Olivares et al and a centralized energy management system is presented in Solanki et al and Marzband et al for grid‐connected and isolated MGs, respectively. In addition, a multi‐objective approach for energy management of MGs is introduced in Shen et al in which the regulation of grid tie‐line fluctuations is considered as one of the objectives of the proposed approach. Moreover, a multi‐agent energy storage system (ESS) aggregation is proposed in Morstyn et al to scale energy management in low voltage MGs through incorporating distributed ESSs.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimal energy management of community microgrids: A risk-based multi-criteria approach

Abniki

Taghvaei²,

Mohammadi‐Hosseininejad

2018

Int Trans Electr Energ Syst

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Summary Community microgrids (CMGs) have been developing nowadays as an initiative to operate modern electric distribution systems in a more economical, reliable, and environmentally friendly manner than the existing centralized electricity grid which benefited both distribution system operator and consumers. In this paper, the optimal energy management of CMGs is formulated considering distributed energy resources and thermal and electrical demands in CMGs. The objective function of the proposed methodology consists of the total cost of CMGs operation, the total cost of energy not supplied in CMGs, and total cost of emission produced in CMGs in order to comprehensively manage the CMG operation. Moreover, the uncertainty of renewable energy resources, electricity price, and demanded power of CMGs are considered in the proposed methodology. In addition, two risk evaluation measures are employed to cope with existing risks in the CMG operation. Furthermore, a number of sensitivity studies are accomplished to investigate the effects of important parameters on the performance of the proposed approach. The effectiveness of the proposed methodology is examined on a test system.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal energy management of community microgrids: A risk-based multi-criteria approach

Abniki

Taghvaei²,

Mohammadi‐Hosseininejad

2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

show abstract

“…From the perspective of the demand of side response, the tie-line power of micro-grid becomes smooth once combined with the energy storage system as shown in a previous study [14]. Taking reduction in the tie-line power fluctuation as the optimization goal, a previous study [15] also proposed a micro-grid energy management control strategy. However, most of these methods depend on the communication system to coordinate the operation of devices in a micro-grid, resulting in a high cost and complex control.…”

Section: Introductionmentioning

confidence: 98%

A Simplified Control Method for Tie-Line Power of DC Micro-Grid

et al. 2018

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Compared with the AC micro-grid, the DC micro-grid has low energy loss and no issues of frequency stability, which makes it more accessible for distributed energy. Thus, the DC micro-grid has good potential for development. A variety of renewable energy is included in the DC micro-grid, which is easily affected by the environment, causing fluctuation of the DC voltage. For grid-connected DC micro-grid with droop control strategy, the tie-line power is affected by fluctuations in the DC voltage, which sets higher requirements for coordinated control of the DC micro-grid. This paper presents a simplified control method to maintain a constant tie-line power that is suitable for the DC micro-grid with the droop control strategy. By coordinating the designs of the droop control characteristics of generators, energy storage units and grid-connected inverter, a dead band is introduced to the droop control to improve the system performance. The tie-line power in the steady state is constant. When a large disturbance occurs, the AC power grid can provide power support to the micro-grid in time. The simulation example verifies the effectiveness of the proposed control strategy.

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“…As the renewable energy in global develops rapidly, renewable energies in the grid have an increasing widespread application, 1 and the distributed accessing way for them is broadly deployed. 2,3 Integrating distributed generations (DGs) are connected to distribution networks through microgrids (MGs) to realize their effective function, for it can decrease the detrimental effects from DGs due to their intermittent and fluctuation. [4][5][6] Microgrids are the generation and distribution networks that integrate DGs, converters, energy storage devices, loads, monitors, and control devices.…”

Section: Introductionmentioning

confidence: 99%

Multi-timescale coordinated optimization of hybrid three-phase/single-phase multimicrogrids

Zhang

Liang

et al. 2017

Int Trans Electr Energ Syst

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Summary With the increasing amount and type of connected microgrids in the near‐term future power networks, how to optimize the operation of multimicrogrids efficiently and reliably has become essential for taking full advantage of the complex systems. In this paper, a multitimescale coordinated optimization strategy for hybrid three‐phase/single‐phase multimicrogrids is proposed. The multitimescale strategy is implemented for day‐ahead economic optimization on a long‐time scale and real‐time tracking optimization on a short‐time scale. With the consideration of the economy of microgrids and three‐phase unbalance constraints in multimicrogrids, a strategy of collecting‐distributing fuzzy modified adaptive particle swarm economic optimization is introduced. In this day‐ahead strategy, a bilayer rolling optimizing structure is designed, where the lower layer conducts economic optimization at all time slots and the upper layer balances the tie‐line power at each time slot based on the results obtained from the lower layer. On this basis, by taking a day‐ahead optimized tie‐line power as baseline values, the real‐time power of energy storage systems is obtained by adopting an improved nondominated sorting genetic algorithm, which achieves distributed real‐time optimization for the multimicrogrid. Simulation results verify that the proposed strategy is feasible.

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Microgrid operation optimization with regulation of grid tie-line power fluctuations and risk management

Cited by 11 publications

References 20 publications

Optimal energy management of community microgrids: A risk-based multi-criteria approach

Optimal energy management of community microgrids: A risk-based multi-criteria approach

A Simplified Control Method for Tie-Line Power of DC Micro-Grid

Multi-timescale coordinated optimization of hybrid three-phase/single-phase multimicrogrids

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