Voltage Control for a Loop Distribution System with Renewable Energy Sources

This paper describes and verifies a voltage control for a loop distribution system. The proposed method adopts SCADA system based on voltage data from IT switches, which are sectionalizing switches with sensor installed at 6.6kV distribution line. The proposed voltage control combines centralized control of a LRT and autonomous control of decentrally-allocated RESs. The tap change control of LRT takes the major role of the proposed voltage control. It is the extended type of LDC method which is generally adopted, and minimizes voltage deviations based on voltage data from each IT switch. The output power control of RES additionally and autonomously supports the voltage control when the voltage violation from the upper limit is unavoidable. The reactive power control in the vacant capacity of RES's inverter mainly works, and the active power control works when not enough. In order to check the validity of the method, the experimental simulations using an analog distribution system simulator are carried out. This study is supported by a specially-promoted research grant of Power Academy in 2009 from the Federation of Electric Power Companies of Japan.

[1]  D. Karlsson,et al.  Voltage and Reactive Power Control in Systems With Synchronous Machine-Based Distributed Generation , 2008, IEEE Transactions on Power Delivery.

[2]  G.P. Harrison,et al.  Centralized and Distributed Voltage Control: Impact on Distributed Generation Penetration , 2007, IEEE Transactions on Power Systems.

[3]  D. Karlsson,et al.  Combined Local and Remote Voltage and Reactive Power Control in the Presence of Induction Machine Distributed Generation , 2007, IEEE Transactions on Power Systems.

[4]  Takaharu Takeshita,et al.  Construction Method of Loop Distribution System for Line Loss Minimization , 2008 .

[5]  Yushi Miura,et al.  A Method for Effective Utilization of Power Distribution Apparatus in Industrial Park by Looping Distribution Lines , 2007 .

[6]  L.A.F. Ferreira,et al.  Distributed Reactive Power Generation Control for Voltage Rise Mitigation in Distribution Networks , 2008, IEEE Transactions on Power Systems.

[7]  L. A. Kojovic,et al.  Advanced distribution system automation , 2003, 2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495).

[8]  Yushi Miura,et al.  A Series Type BTB Converter for Controlling Voltage Profile in Loop Distribution System with Distributed Generations , 2008 .

[9]  Y. Wada,et al.  The development of the advanced distribution automation system with optical fiber network of Tokyo electric power Co., Inc , 2004, IEEE Power Engineering Society General Meeting, 2004..

[10]  Yasuhiro Hayashi,et al.  Trend and future view of voltage control for distribution systems with distributed generators , 2009 .

[11]  M.E. Baran,et al.  A Multiagent-Based Dispatching Scheme for Distributed Generators for Voltage Support on Distribution Feeders , 2007, IEEE Transactions on Power Systems.

[12]  Keiichi Shimizu,et al.  Comparative Evaluation of Reliability by Monte Carlo Method among different Loop Distribution Systems , 2008 .

[13]  Shinji Wakao,et al.  Development of Distribution Network Equipment to Support the Solution of Problem of Connecting Distributed Generators (ANSWER) and Verification Experiment of Active Coordinated Operation of Distributed Generator and Distribution Network , 2010 .