An adaptive model-based real-time voltage control process for Active Distribution Networks using Battery Energy Storage Systems

Bahramipanah, Maryam; Torregrossa, Dimitri; Cherkaoui, Rachid; Paolone, Mario

doi:10.1109/pscc.2016.7540862

Cited by 5 publications

(4 citation statements)

References 13 publications

(20 reference statements)

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“…This optimization problem is nonconvex due to the nonconvex constraints ( 9), (10) and (11). To efficiently find a local optimal solution, constraint ( 9) is firstly convexified to:…”

Section: Proposed Methodologymentioning

confidence: 99%

“…Another contribution proposed in this work is the design of a real-time control algorithm with time resolution ≤ 1s, capable of computing the maximum grid support from the BESS for different battery and AC grid conditions. This is done by solving in real time an optimization problem that includes constraints based on battery status predictions, given a three-time-constant (TTC) equivalent model whose parameters have been experimentally estimated via a series of model identification tests [10], [11]. We propose a computationallyefficient algorithm to find an optimal solution of the power set points.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal Provision of Concurrent Primary Frequency and Local Voltage Control from a BESS Considering Variable Capability Curves: Modelling and Experimental Assessment

Zecchino¹,

Zhao²,

Sossan³

et al. 2019

Preprint

Self Cite

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This paper proposes a control method for battery energy storage systems (BESSs) to provide concurrent primary frequency and local voltage regulation services. The actual variable active and reactive power capability of the converter, along with the state-of-energy of the battery in the BESS, are jointly considered by the optimal operating point calculation process within the real-time control operation. The controller optimizes the provision of grid services, considering the measured grid and battery statuses and predicting the battery DC voltage as a function of the current trajectory using a three-time-constant model (TTC). A computationally-efficient algorithm is proposed to solve the formulated optimal control problem. Experimental tests validate the proposed concepts and show the effectiveness of the employed control framework on a commercial utility-scale 720 kVA/560 kWh BESS.

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“…This optimization problem is nonconvex due to the nonconvex constraints ( 9), (10) and (11). To efficiently find a local optimal solution, constraint ( 9) is firstly convexified to:…”

Section: Proposed Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Provision of Concurrent Primary Frequency and Local Voltage Control from a BESS Considering Variable Capability Curves: Modelling and Experimental Assessment

Zecchino¹,

Zhao²,

Sossan³

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Compared to the dual structure of 'grid-load' in a traditional distribution network, ADN is the three-dimensional structure 'DG-grid-load', which can analyze and predict the performance of DGs more actively, that is, eliminate the impact of DERs on the power grid as soon as possible [15][16][17].…”

Section: Evaluation Index Definitionmentioning

confidence: 99%

Evaluation and sensitivity analysis for economical operation of active distribution network

Zhu

Gao

et al. 2018

IEEJ Transactions Elec Engng

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memberWith the connection of a large number of distributed energy resources to the power grid, the problem of economical operation of an active distribution network (ADN) has restricted its application. According to the economics of ADN operation, an innovative evaluation index system is proposed and a cloud model is established for evaluating the economical operation of an ADN. In addition, a sensitivity analysis is carried out on the value and weight of the index value. First, the ADN accommodation profit rate, ADN loss contribution rate, etc. are defined. In addition, an evaluation index system is established for the economical operation of ADNs. Index weight cloud model, evaluation grade boundary cloud model, correlation evaluation matrix cloud model, and final evaluation results cloud model are proposed based on the three numeric characteristics of the cloud model, namely expectation value (Ex), entropy (En), and hyper entropy (He). Our evaluation results are close to the actual ones considering uncertainty. Besides, a method for analyzing the the index value and index weight is proposed, which provides a basis for improving the economical operation of ADNs. Finally, simulation results demonstrate the rationale and validity of the index system and the evaluation method of the cloud model, as well as the practicability of sensitive analysis.

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“…Considering that -from the system's point of viewthe storage DC-side limits represent time-dependant activepower limits, an alternative solution can be considered [7]. To tackle this issue, a method for ranking resources in real-time according to their suitability for becoming slack was proposed in [8].…”

Section: Introductionmentioning

confidence: 99%

Slack Selection for Unintentional Islanding: Practical Validation in a Benchmark Microgrid

Reyes-Chamorro¹,

Saab

Rudnik

et al. 2018

2018 Power Systems Computation Conference (PSCC)

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Upon an intentional or emergency disconnection from the main grid, a microgrid is expected to continue working in islanded mode. Thus, (at least) one resource needs to act as slack and compensate for power variations to keep the power balance, and ensure the security of supply. Although several resources might be eligible to become slack, some are more suitable than others (energy storage systems in particular) depending on the state of both the resources and the grid before the islanding transition. In this paper, we validate a recently proposed method to select in real-time the best slack-candidate using an abstract representation of the internal state of the available resources. The same method can be used to actively switch the slack during islanded operation to accommodate the intrinsic stochastic nature of the microgrid's resources. Our main contribution is the validation of the method in a realscale microgrid, including a discussion of implementation and deployment aspects. To support our findings, we present extensive experimental results in different operating conditions.

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An adaptive model-based real-time voltage control process for Active Distribution Networks using Battery Energy Storage Systems

Abstract: Abstract-

Cited by 5 publications

References 13 publications

Optimal Provision of Concurrent Primary Frequency and Local Voltage Control from a BESS Considering Variable Capability Curves: Modelling and Experimental Assessment

Optimal Provision of Concurrent Primary Frequency and Local Voltage Control from a BESS Considering Variable Capability Curves: Modelling and Experimental Assessment

Evaluation and sensitivity analysis for economical operation of active distribution network

Slack Selection for Unintentional Islanding: Practical Validation in a Benchmark Microgrid

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