Energy management in unbalanced low voltage distribution networks with microgeneration and storage by using a multi-objective optimization algorithm

Camilo, Fernando M.; Castro, Rui; Almeida, M.E.; Pires, V. Fernão

doi:10.1016/j.est.2020.102100

Cited by 16 publications

(4 citation statements)

References 49 publications

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“…Addressing all of the possible power quality problems that can arise in DERs can be framed as a complex multi-objective optimisation. In this regard, several authors have proposed hierarchical control schemes based on advanced algorithms for constrained optimisation, such as genetic algorithms (GAs) [6, [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][91][92][93][94][95][96][98][99][100][101][102][103][104][105][106][107][108][109][110]. However, these are computationally intensive methods that require input data such as line and load parameters, inverter specifications, and information on the constraints and operating costs.…”

Section: Management Of Power Quality Problems (Pq Control)mentioning

confidence: 99%

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

Smith,

Robinson,

Elphick

2024

Energies

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It is widely recognised that improving the visibility and controllability of distributed energy resources (DERs) within electricity distribution networks will have significant benefits, particularly for the management of low-voltage (LV) and medium-voltage (MV) networks. Much work within the electricity distribution industry is currently focused on improving the visibility of DERs on LV networks. From a control-theoretic perspective, this enables closing the loop between the DER and the control room and enables a shift towards utilising data-driven model-based control strategies for DERs. The result is a system-wide performance that is closer to the theoretical optimal. In the Australian context, several jurisdictions are trialling techniques such as dynamic operating envelopes to enhance DER hosting capacity, using IEEE 2030.5-based architectures, with the implementation of distributed energy resource management (DERMS) systems at the enterprise level still quite limited. While there is significant activity focused on DER behaviour and control techniques by way of inverter grid codes and standards, the core issue of interoperability with distribution management systems (DMSs), market operators or participants, electric vehicles (EVs) or other DERs is still a work in progress. Importantly, this is also an impediment to realising distributed architectures for DER control in the grid. The unique characteristics of Australian distribution networks highlights several challenging problems for DER control and management. The objective of this paper is to provide a broad overview of DER control and management strategies in the Australian context, with an application focus on DER control in distribution network management.

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Section: Management Of Power Quality Problems (Pq Control)mentioning

confidence: 99%

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

Smith,

Robinson,

Elphick

2024

Energies

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“…In the first category, the uniform objective functions were used with the aim of minimizing the total operation cost [182][183][184], or maximizing the utilization of renewable energy [185]. On the other hand, the second category includes multi-objective optimization functions to improve the technical parameters of the distribution networks [186,187] and decrease environmental pollution [188,189] along with economic analysis.…”

Section: Mathematical Optimization For Scheduling Strategiesmentioning

confidence: 99%

A Critical Review on the Impacts of Energy Storage Systems and Demand-Side Management Strategies in the Economic Operation of Renewable-Based Distribution Network

et al. 2022

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Energy storage systems (ESSs) and demand-side management (DSM) strategies have significant potential in providing flexibility for renewable-based distribution networks. Therefore, combining ESSs and DSM strategies with renewable energy sources (RESs) to solve economic, operational, environmental, and power-related political issues has received special attention from power system planners around the world. In this regard, developed countries, which are pioneers in renewable technologies, have proposed various supportive policies and practices for the widespread use of ESSs and DSM strategies in the context of distribution networks. Hence, this paper performs a comprehensive review of the most recent actions taken to build the infrastructure necessary to achieve 100% renewable energy. On this basis, this paper firstly surveys the necessity of using ESSs and DSM strategies in renewable-based distribution networks. Then, the existing policies and incentive programs implemented in different countries for the development of RESs in optimal coordination with ESSs and DSM strategies are presented. The impacts of utilizing ESSs and DSM strategies in improving the economic performance of the renewable-based distribution networks are also investigated. Finally, prevalent energy management strategies, which are proposed to optimize utilization of ESSs and DSM strategies in renewable-based distribution networks, are investigated from the perspective of optimization approaches.

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“…Besides, the work in ref. [8] proposed a control approach to minimise the voltage unbalance, voltage deviation, active power losses and PV curtailment in the LV network as a multi‐objective optimisation problem in combination with the Backward/Forward Sweep unbalanced three‐phase power flow algorithm to drive a real‐time energy management system in a network with batteries and a high share of PV. However, similar to ref.…”

Section: Introductionmentioning

confidence: 99%

“…In general terms, the individual or combined analysis of EVs and PVs within a simulation framework are considered either as optimisation problems (e.g. linear [6], non-linear [2,3,7,12] and metaheuristic [5,8]) or deterministic approaches [4,[9][10][11][13][14][15]. However, to the knowledge of the authors, no paper considering a combined testbed for smart EV charging and PV curtailment is not found in the literature.…”

Section: Introductionmentioning

confidence: 99%

Optimal coordination of electric vehicle charging and photovoltaic power curtailment in unbalanced low voltage networks: An experimental case

Borray

Rauma

2022

IET Smart Grid

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This study introduces a quadratic programming-based optimisation method to coordinate electric vehicle (EV) charging and photovoltaic (PV) curtailment in unbalanced low voltage (LV) networks. The proposed model is defined as a convex model that guarantees the optimal global solution of the problem avoiding the complexity of non-linear models and surpassing the limitations of local solutions derived from meta-heuristics algorithms reported in the literature. The coordination is carried out through a centralised controller installed at the header of the LV feeder. The objective of the proposed strategy is to minimise the power curtailment of all PV systems and maximise the power delivered to all EVs by optimising at every time step a suitable setpoint for the PV units and the charging rate of each EV connected without surpassing network constraints. A new energy-boundary model is also proposed to meet the energy requirements of all EVs, which is based on a recurrent function that depends on the arrival-and-desired energy states of the vehicle to compute its charging trajectory optimally. The effectiveness of the proposed coordination strategy was successfully proven through three scenarios in a laboratory environment, making use of two commercial EVs and a PV inverter in a Power Hardware-in-the-Loop setup.

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Energy management in unbalanced low voltage distribution networks with microgeneration and storage by using a multi-objective optimization algorithm

Cited by 16 publications

References 49 publications

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

DER Control and Management Strategies for Distribution Networks: A Review of Current Practices and Future Directions

A Critical Review on the Impacts of Energy Storage Systems and Demand-Side Management Strategies in the Economic Operation of Renewable-Based Distribution Network

Optimal coordination of electric vehicle charging and photovoltaic power curtailment in unbalanced low voltage networks: An experimental case

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