Contribution of Distribution Network Control to Voltage Stability: A Case Study

Aristidou, Petros; Valverde, Gustavo; Cutsem, Thierry Van

doi:10.1109/tsg.2015.2474815

Cited by 88 publications

(62 citation statements)

References 21 publications

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“…2). It allows assigning higher generation levels to the controllable units (feeders [1][2][3][4] or to the uncontrollable units (feeders 5-8). • Constant load: This parameter defines which possible vision of the future power grid is considered for the generated T&D system.…”

Section: Key Parametersmentioning

confidence: 99%

TDNetGen: An Open-Source, Parametrizable, Large-Scale, Transmission, and Distribution Test System

Pilatte

Aristidou

Hug

2019

IEEE Systems Journal

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Abstract-In this paper, an open-source MATLAB toolbox is presented that is able to generate synthetic, combined transmission and distribution network models. These can be used to analyse the interactions between transmission and multiple distribution systems, such as the provision of ancillary services by active distribution grids, the co-optimization of planning and operation, the development of emergency control and protection schemes spanning over different voltage levels, the analysis of combined market aspects, etc. The generated test-system models are highly customizable, providing the user with the flexibility to easily choose the desired characteristics, such as the level of renewable energy penetration, the size of the final system, etc.

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Section: Key Parametersmentioning

confidence: 99%

TDNetGen: An Open-Source, Parametrizable, Large-Scale, Transmission, and Distribution Test System

Pilatte

Aristidou

Hug

2019

IEEE Systems Journal

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“…In the present application, the droop is kept constant. Coefficients a 1,3,5 are found through polynomial fitting (least-mean-square approach) once the desired droop has been chosen. In Figure 4 we can see an example with 2% droop (a 1 = −91, a 3 = 1.42 × 10 5 , a 5 = −1 × 10 8 ).…”

Section: Wind Farm Control Modesmentioning

confidence: 99%

Optimal Control of Wind Farms for Coordinated TSO-DSO Reactive Power Management

et al. 2018

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Abstract:The growing importance of renewable generation connected to distribution grids requires an increased coordination between transmission system operators (TSOs) and distribution system operators (DSOs) for reactive power management. This work proposes a practical and effective interaction method based on sequential optimizations to evaluate the reactive flexibility potential of distribution networks and to dispatch them along with traditional synchronous generators, keeping to a minimum the information exchange. A modular optimal power flow (OPF) tool featuring multi-objective optimization is developed for this purpose. The proposed method is evaluated for a model of a real German 110 kV grid with 1.6 GW of installed wind power capacity and a reduced order model of the surrounding transmission system. Simulations show the benefit of involving wind farms in reactive power support reducing losses both at distribution and transmission level. Different types of setpoints are investigated, showing the feasibility for the DSO to fulfill also individual voltage and reactive power targets over multiple connection points. Finally, some suggestions are presented to achieve a fair coordination, combining both TSO and DSO requirements.

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“…CVR is essentially a distribution system phenomenon and needs to consider detailed distribution system models and solvers for analysis [4]. There have been several studies conducted to study CVR and its benefits [5]- [8], however, these are based on real power impact. CVR also affects reactive power and its impact has not been studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Relevant Distribution System Representation With DG for Voltage Stability Margin Assessment

Bharati

Ajjarapu

2020

IEEE Trans. Power Syst.

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This paper analyses the impact of conservation by voltage reduction (CVR) on voltage stability margin (VSM) considering transmission and distribution (T&D) systems. VSM is determined by P-V curve analysis using PSSE and GridLAB-D solvers to co-simulate the T&D systems under CVR and No CVR conditions. ZIP loads with profile [ZIP] = [0.4 0.3 0.3] are used to model the load. The paper discusses the counterintuitive result:under CVR, the VSM is reduced. Theoretical justification for the reduced VSM under CVR is the increase in the effective impedance between generation and load and this is proved using an extended 2-bus system. The paper shares T&D co-simulation results with IEEE 9-bus transmission system and a larger 123-bus distribution system and with distributed generation (DG) in unity power factor (UPF) and volt-VAR control (VVC) mode.

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Contribution of Distribution Network Control to Voltage Stability: A Case Study

Cited by 88 publications

References 21 publications

TDNetGen: An Open-Source, Parametrizable, Large-Scale, Transmission, and Distribution Test System

TDNetGen: An Open-Source, Parametrizable, Large-Scale, Transmission, and Distribution Test System

Optimal Control of Wind Farms for Coordinated TSO-DSO Reactive Power Management

Investigation of Relevant Distribution System Representation With DG for Voltage Stability Margin Assessment

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