The development of the advanced distribution automation system with optical fiber network of Tokyo electric power Co., Inc

Kasajima, T.; Endo, Rokuro; Wada, Yusuke; Kudo, Yoshihisa; Kanawa, H.

doi:10.1109/pes.2004.1373106

Cited by 21 publications

(5 citation statements)

References 2 publications

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“…It can be inferred that the deviation from the maximum voltage value occurs only by sending Optical-fiber use is widespread in Japan. Actually, advanced distribution automation systems using an optical-fiber network are developed in [15]. Therefore, the central coordination of voltage regulating devices is possible in the near future.…”

Section: Simulation Resultsmentioning

confidence: 99%

Optimal Distribution Voltage Control and Coordination With Distributed Generation

Senjyu

Miyazato

Yona

et al. 2008

IEEE Trans. Power Delivery

371

170

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In recent years, distributed generation, as clean natural energy generation and cogeneration system of high thermal efficiency, has increased due to the problems of global warming and exhaustion of fossil fuels. Many of the distributed generations are set up in the vicinity of the customer, with the advantage that this decreases transmission losses. However, output power generated from natural energy, such as wind power, photovoltaics, etc., which is distributed generation, is influenced by meteorological conditions. Therefore, when the distributed generation increases by conventional control techniques, it is expected that the voltage change of each node becomes a problem. Proposed in this paper is the optimal control of distribution voltage with coordination of distributed installations, such as the load ratio control transformer, step voltage regulator (SVR), shunt capacitor, shunt reactor, and static var compensator. In this research, SVR is assumed to be a model with tap changing where the signal is received from a central control unit. Moreover, the communication infrastructure in the supply of a distribution system is assumed to be widespread. The genetic algorithm is used to determine the operation of this control. In order to confirm the validity of the proposed method, simulations are carried out for a distribution network model with distributed generation (photovoltaic generation).Index Terms-Centralized control, coordinated control, distribution system, genetic algorithm (GA), voltage/reactive power control.

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Section: Simulation Resultsmentioning

confidence: 99%

Optimal Distribution Voltage Control and Coordination With Distributed Generation

Senjyu

Miyazato

Yona

et al. 2008

IEEE Trans. Power Delivery

371

170

View full text Add to dashboard Cite

show abstract

“…have been determined so as to minimize the deviation from the target voltage value by referring only to the measurement data in a distribution substation [1]. Recently, for realizing more accurate voltage management, IT switches are being installed to monitor the node voltage, active and reactive power, and line current in the whole distribution feeder [12]. Therefore, a new approach to determine the control parameters of the voltage regulator LRT/SVR by using measurement information obtained from the IT switches is used to enhance the accuracy of the control.…”

Section: Voltage Control By Ldc Methodsmentioning

confidence: 99%

Determination of the optimal control parameters of voltage regulators installed in a radial distribution network

Hayashi

Hanai

Matsuki

et al. 2008

IEEJ Transactions Elec Engng

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This paper presents a new computation method to determine simultaneously the optimal parameters of several voltage regulators such as the load-ratio control transformer (LRT) and step voltage regulator (SVR) installed in a radial distribution network. The proposed method determines a combination of their control parameters by minimizing the weighted sum of deviations of line voltage from the upper and lower voltage limits and the amounts of voltage violations by referring to the stored data measured by IT switches, which are sectionalizing switches with sensors installed in the distribution feeder. The optimization algorithm is based on particle swarm optimization (PSO), which is one of the nonlinear optimization methods, by using the concept of swarm intelligence. In order to confirm the validity of the proposed method, numerical simulations are carried out on a distribution network model. 

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“…2 shows the outline of our centralized load management system. In Japanese distribution system, IT switch which is sectionalizing switch with sensors has already been put to practical use, and the penetration is promoted [8] [9]. Consequently, distribution system state such as electric demand, voltage and current will be understood more accurately in each distribution section enclosed by sectionalizing switches.…”

Section: The Impact Of Residential Controllable Load Operation On Dismentioning

confidence: 99%

Load Management using Heat-Pump Water Heater and Electric Vehicle Battery Charger in Distribution System with PV

Hanai¹,

Yoshimura

Matsuki

et al. 2011

Journal of International Council on Electrical Engineering

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-This paper proposes a new load management method using Heat Pump Water Heater (HP-WH) and Electric Vehicle Battery Charger (EV-BC) in a distribution system with a high penetration of Photovoltaic generation system (PV). The proposed method implements a classification of the controllable loads (HP-WH, EV-BC) by distribution section and optimizes operation modes of the classified controllable loads. A distribution section enclosed with two or three IT switches, which are sectionalizing switches with sensors, is defined as a load management cluster, and a large number of controllable loads in a distribution feeder are classified into three clusters. All the customers with controllable loads determine beforehand two operation modes which achieve the satisfactory convenience and energy conservation; one is a nighttime consumption pattern and another is a daytime consumption pattern. Distribution System Operator (DSO) can collect the customers' information such as address codes and operation plans, and select either of the operation modes in each distribution section. The optimal combination of these operation modes is determined by Optimal Power Flow calculation (OPF). The objective is to improve load factor while keeping a power quality of a distribution system. The validity of the proposed method is verified through computer simulations using distribution network model.

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The development of the advanced distribution automation system with optical fiber network of Tokyo electric power Co., Inc

Cited by 21 publications

References 2 publications

Optimal Distribution Voltage Control and Coordination With Distributed Generation

Optimal Distribution Voltage Control and Coordination With Distributed Generation

Determination of the optimal control parameters of voltage regulators installed in a radial distribution network

Load Management using Heat-Pump Water Heater and Electric Vehicle Battery Charger in Distribution System with PV

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