Optimal Control of Distribution Voltage with Coordination of Distribution Installations

Senjyu, Tomonobu; Miyazato, Y.; Yona, Atsushi; Urasaki, Naomitsu; Funabashi, Toshihisa

doi:10.1109/pes.2007.386251

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The only voltage-quality improvement expected to be made by smart grids in the near future would be a reduction in longer-term voltage-magnitude variations. In theory, both undervoltages and overvoltages might be mitigated by keeping the correct local balance between production and consumption [18] [19]. For rural networks, overvoltages and undervoltages are the main limitation for increasing consumption and production.…”

Section: Improving Voltage Qualitymentioning

confidence: 99%

Power Quality aspects of Smart Grids

Bollen¹,

Jin²,

Zavoda³

et al. 2024

RE&PQJ

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This paper gives an overview of the smart grids developments, seen from a power-quality viewpoint; describes the main relations between smart grids and power quality, and goes into some detail for some of the aspects. Different types of real and virtual energy storage are distinguished. Power-quality monitoring in the smart grid is discussed in detail. Further aspects discussed in the paper are: emission by new devices; interference between devices and power-line communication; allocation of emission limits; improving voltage quality; immunity of devices; and weakening of the transmission grid. Although the smart grid brings many new power-quality challenges, these should not result in the introduction of unnecessary barriers against the introduction of new technology.

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Section: Improving Voltage Qualitymentioning

confidence: 99%

Power Quality aspects of Smart Grids

Bollen¹,

Jin²,

Zavoda³

et al. 2024

RE&PQJ

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“…하지만 분산전원의 출력으로 인한 역조류와 인근 모선의 전압상승 문제를 해결하기 위해서는 분산전원을 고 려한 전압 제어 기기의 운영과 계획에 대한 새로운 해결책 이 마련되어야 한다 [6][7][8][9][10][11][12][13].…”

Section: 서 론unclassified

Optimal Allocation of Shunt Capacitor-Reactor Bank in Distribution System with Dispersed Generators Considering Installation and Maintenance Cost

Heo¹,

Lyu²,

Lee³

et al. 2013

The Transactions of The Korean Institute of Electrical Engineer

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-This paper proposes the allocation method for capacitor-reactor banks in a distribution system with dispersed generators to reduce the installation costs, the maintenance costs and minimize the loss of electrical energy. The expected lifetime and maintenance period of devices with moving parts depends on the total number of operations, which affects the replacement and maintenance period for aging equipment under a limited budget. In this paper, the expected device lifetimes and the maintenance period are included in the formulation, and the optimal operation status of the devices is determined using a genetic algorithm. The optimal numbers and locations for capacitor-reactor banks are determined based on the optimal operation status. Simulation results in a 69-bus distribution system with the dispersed generator show that the proposed technique performs better than conventional methods.

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“… Since the voltage is a local signal, the reactive power sharing is affected by the proximity of the source to the load in addition to the value of , [8].  As it allows the sources to share the load and regulate the voltage, the droop control satisfies the required reliability for islanded microgrid operation [9,10].…”

Section: Introductionmentioning

confidence: 99%

Construction of Nonlinear Droop Relations to Optimize Islanded Microgrid Operation

Elrayyah

Cingoz

Sözer

2015

IEEE Trans. on Ind. Applicat.

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In this paper, nonlinear droop relations are suggested to optimize the operation of islanded microgrids. By using nonlinear droop, many aspects of the microgrid operation can be optimized in addition to the inherent advantages of the droop control. In the proposed method, the droop relations are allowed to have any nonlinear shape as long as that shape satisfies certain characteristics required for the stability and proper microgrid operation. The procedure of constructing the nonlinear droop relations that minimize the operating cost of the microgrid and share the reactive power effectively among the sources is investigated and explained in detail. The selected droop structure is a combination of integer and fractional power functions whose parameters are selected using two-stage particle swarm optimization algorithm. The effectiveness of the proposed method is verified through simulation and experimental studies.

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Optimal Control of Distribution Voltage with Coordination of Distribution Installations

Cited by 5 publications

References 12 publications

Power Quality aspects of Smart Grids

Power Quality aspects of Smart Grids

Optimal Allocation of Shunt Capacitor-Reactor Bank in Distribution System with Dispersed Generators Considering Installation and Maintenance Cost

Construction of Nonlinear Droop Relations to Optimize Islanded Microgrid Operation

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