A survey on control issues in renewable energy integration and microgrid

Badal, Faisal R.; Das, Purnima; Sarker, Subrata; Das, Sajal K.

doi:10.1186/s41601-019-0122-8

Cited by 246 publications

(138 citation statements)

References 124 publications

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“…In order to ensure secure and stable operation of EGIES, it is very important for operators to quickly and accurately evaluate the operational risk of the system. At present, research on integrated energy systems has focused on energy flow analysis [7,8], optimized operation [9][10][11], and collaborative planning [12]. Most of the researches on system risk assessment have stayed in a single energy system, and there are few studies on risk assessment of multi-energy systems.…”

Section: Introductionmentioning

confidence: 99%

Operational Risk Assessment of Electric-Gas Integrated Energy Systems Considering N-1 Accidents

Liu

Cao

et al. 2020

Energies

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The reliability analysis method and risk assessment model for the traditional single network no longer meet the requirements of the risk analysis of coupled systems. This paper establishes a risk assessment system of electric-gas integrated energy system (EGIES) considering the risk security of components. According to the mathematical model of each component, the EGIES steady state analysis model considering the operation constraints is established to analyze the operation status of each component. Then the EGIES component accident set is established to simulate the accident consequences caused by the failure of each component to EGIES. Furthermore, EGIES risk assessment system is constructed to identify the vulnerability of EGIES components. Finally, the risk assessment of IEEE14-NG15 system is carried out. The simulation results verify the effectiveness of the proposed method.

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Section: Introductionmentioning

confidence: 99%

Operational Risk Assessment of Electric-Gas Integrated Energy Systems Considering N-1 Accidents

Liu

Cao

et al. 2020

Energies

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“…The minimizationin of norm may result in conservative controller and indicates the poor performance of the controller . Linear quadratic regulator (LQR) has been designed to achieve better regulation of islanded MG voltage . The function of LQR controller depends on the plant dynamics which may change due to the parameter variation or uncertainty.…”

Section: Introductionmentioning

confidence: 99%

Multivariable integral linear quadratic Gaussian robust control of islanded microgrid to mitigate voltage oscillation for improving transient response

Sarker

Badal

Das

et al. 2019

Asian Journal of Control

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A novel robust integral linear quadratic Gaussian (ILQG) controller is presented in this paper to control the voltage of islanded microgrid and improves its transient response. Microgrid is a small grid that consists of number of distributed generator units, power-electronic components with inductor-capacitor (LC) filters and loads. The loads are parametrically uncertain and unknown that produces the voltage or power oscillation. The ILQG controller is capable to compensate for the voltage oscillation and exhibits the tracking of grid voltage against the different load dynamics. The design of ILQG controller is carried out by augmenting the plant dynamics with an integrator. The robustness of the ILQG controller is studied by considering a number of uncertainties within the plant model. The performance of ILQG controller is compared with linear quadratic regulator (LQR) and linear quadratic Gaussian (LQG) controller in terms of rise time, settling time, bandwidth and tracking error. The comparison results ensure the high bandwidth and tracking performance of ILQG controller as compared to other controllers. KEYWORDS integral linear quadric Gaussian control, microgrid, voltage control

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“…To more flexibly accommodate an increasing number of inverter‐interfaced and synchronous distributed generators (DGs), active distribution networks (ADNs) have been introduced and attracted considerable attention . Currently, one of the most critical challenges regarding the development of ADNs is to enhance the robustness against short‐circuit faults, and there is an urgent demand to efficiently suppress the fault currents of ADNs …”

Section: Introductionmentioning

confidence: 99%

Pareto optimal allocation of resistive‐type fault current limiters in active distribution networks with inverter‐interfaced and synchronous distributed generators

Chen

Zhang

Chen

et al. 2019

Energy Science & Engineering

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To efficiently reduce the fault currents of active distribution networks (ADNs), this paper proposes a novel methodology for Pareto optimal allocation of resistive‐type fault current limiters (R‐FCLs). The proposed approach enables to simultaneously optimize the number, location, and size of the R‐FCLs in the ADNs with inverter‐interfaced and synchronous distributed generators (DGs). The sensitivity analysis is introduced to rank candidate locations, and a constrained multiobjective function is created to minimize the cost of the R‐FCLs and the fault currents of the ADNs. An improved multiobjective particle swarm optimization (MOPSO) algorithm and a multiobjective artificial bee colony (MOABC) algorithm are designed to obtain the Pareto optimal solution set. The proposed approach is verified using the modified IEEE 33‐node and 69‐node distribution systems, where both centralized and dispersed access of DGs are considered. The numerical results demonstrate that: (a) The fault currents in all nodes of the two testing systems are limited to the permissible levels using the least capital cost of the R‐FCLs, and (b) the improved MOPSO outperforms the MOABC to achieve a better Pareto front and decrease the number of iterative computation. In consequence, the feasibility and superiority of the proposed approach are well validated.

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A survey on control issues in renewable energy integration and microgrid

Cited by 246 publications

References 124 publications

Operational Risk Assessment of Electric-Gas Integrated Energy Systems Considering N-1 Accidents

Operational Risk Assessment of Electric-Gas Integrated Energy Systems Considering N-1 Accidents

Multivariable integral linear quadratic Gaussian robust control of islanded microgrid to mitigate voltage oscillation for improving transient response

Pareto optimal allocation of resistive‐type fault current limiters in active distribution networks with inverter‐interfaced and synchronous distributed generators

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