Coordinated voltage control strategy for voltage regulators and voltage source converters integrated distribution system

Ahmed, Mahiuddin; Bhattarai, Rojan; Hossain, Sheikh Jakir; Abdelrazek, Sherif; Kamalasadan, Sukumar

doi:10.1109/ias.2017.8101780

Cited by 12 publications

(14 citation statements)

References 18 publications

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“…It is worth noting that the OLTC tap is only changed once in a long period, which is assumed to occur in the first short period, as in Equation (21). The PV active outputs and load conditions in Equations (22) and (23) are based on the current forecast.…”

Section: Voltage Constraintsmentioning

confidence: 99%

“…According to load and PV forecasts in the prediction and control horizon, the optimal operation sequence of PV power outputs can be obtained. The specific subproblem model solved by the k-th iteration is: (22,23) Equations(10), (11), (24) (27) where λ k is a dual variable generated by constraint (∆N of the k-th master problem is used as a parameter when the subproblem is solved.…”

Section: Model Decompositionmentioning

confidence: 99%

“…It follows that the reactive power and voltage optimization model of ADN is a complex mixed integer nonlinear programming (MINP) problem, not only dealing with continuous control variables such as of PV outputs, but also handling discrete variables such as OLTC tap changes. In [20][21][22], a control method for coordinating the operation of OLTC and distributed generations (DGs) based on the initial optimal power flow (OPF) calculation in order to maintain the load end voltage of the feeder within the allowed band. The authors of [23,24] incorporated a semi-definite power flow relaxation to tackle such complex problems, while [25,26] decomposed the problem into subproblems by Benders decomposition method and alternate direction method of multipliers respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Table 1 gathers the main features of ADN optimization methods found in the existing literature. A multi-mode adaptive local control method based on Q(P) characteristics [16] a combination of centralized remote control and local decentralized control DG, OLTC [20][21][22] Optimal power flow (OPF) calculation…”

Section: Introductionmentioning

confidence: 99%

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A Decoupling Rolling Multi-Period Power and Voltage Optimization Strategy in Active Distribution Networks

Shen

Zheng

et al. 2020

Energies

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With the increasing penetration of distributed photovoltaics (PVs) in active distribution networks (ADNs), the risk of voltage violations caused by PV uncertainties is significantly exacerbated. Since the conventional voltage regulation strategy is limited by its discrete devices and delay, ADN operators allow PVs to participate in voltage optimization by controlling their power outputs and cooperating with traditional regulation devices. This paper proposes a decoupling rolling multi-period reactive power and voltage optimization strategy considering the strong time coupling between different devices. The mixed-integer voltage optimization model is first decomposed into a long-period master problem for on-load tap changer (OLTC) and multiple short-period subproblems for PV power by Benders decomposition algorithm. Then, based on the high-precision PV and load forecasts, the model predictive control (MPC) method is utilized to modify the independent subproblems into a series of subproblems that roll with the time window, achieving a smooth transition from the current state to the ideal state. The estimated voltage variation in the prediction horizon of MPC is calculated by a simplified discrete equation for OLTC tap and a linearized sensitivity matrix between power and voltage for fast computation. The feasibility of the proposed optimization strategy is demonstrated by performing simulations on a distribution test system.

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Section: Voltage Constraintsmentioning

confidence: 99%

Section: Model Decompositionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Decoupling Rolling Multi-Period Power and Voltage Optimization Strategy in Active Distribution Networks

Shen

Zheng

et al. 2020

Energies

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“…Aiming at the voltage adjustment problems faced by feeder lines in distribution networks, traditional methods mostly adopt global control strategies [29]. However, in recent years, the distribution network has faced more and more challenges.…”

Section: Voltage-layered Control Architecturementioning

confidence: 99%

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

Zhang

Lyu

et al. 2020

IEEJ Transactions Elec Engng

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In recent years, with the large-scale access of distributed generation (DG), the line voltage of the distribution network will be offset, which will adversely affect users. This paper aims at the voltage adjustment of the distribution network. Firstly, the reactive power control methods of distributed static synchronous compensator (DSTATCOM) and electric spring (ES) are studied separately, and then a layered cooperative control strategy based on them is proposed, which combines centralized compensation and distributed compensation to stabilize the entire line voltage. The upper layer aims at optimizing the comprehensive factors including voltage offset, user comfort and cost, and applies the dynamic adaptive particle swarm optimization (DAPSO) algorithm to study the optimal scheme of voltage adjustment. The lower layer designs the control loops of the compensation devices in response to the reactive power instruction. Finally, simulation results show that the voltage of the distribution network is effectively controlled.

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RETRACTED ARTICLE: A comprehensive study on artificial intelligence in oil and gas sector

Gupta

Shah

2021

Environ Sci Pollut Res

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Coordinated voltage control strategy for voltage regulators and voltage source converters integrated distribution system

Cited by 12 publications

References 18 publications

A Decoupling Rolling Multi-Period Power and Voltage Optimization Strategy in Active Distribution Networks

A Decoupling Rolling Multi-Period Power and Voltage Optimization Strategy in Active Distribution Networks

A Cooperative Voltage Control Method for Distribution Network Based on DSTATCOM and ES

RETRACTED ARTICLE: A comprehensive study on artificial intelligence in oil and gas sector

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