Research on Application of Electric Power Communication in the Smart Power Grids

Qianhui Gang 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.9

With the rapid development of science and technology in the respect of electric power, the smartness standard of the power grid improves faster and faster. However, the power grid in the past has failed to keep pace with the needs of the current production. Therefore, it is very necessary to run the real-time, two-way, integrated and high speed communication system for the creation of the smart power grid. The article discusses the new requirements of the smart power grid on the electric power communication and the use of electric power communication in the smart power grid. It also elaborates the meanings of the electric power communication and the smart power grid, analyzing the operation condition of the smart power grid at home and the key performance of electric power communication in the smart power grid. Meanwhile, the paper studies fundamentally the real application of the electric power communication in the smart power grid. With the development of the power industry, the communication network is playing an increasingly vital role in the power system as an important part of modern power system.

Smart Grid Cooperative Communication with Smart Relay

Ahmed, Mohammad Helal Uddin,Alam, Md. Golam Rabiul,Kamal, Rossi,Hong, Choong Seon,Lee, Sungwon The Korea Institute of Information and Commucation 2012 Journal of communications and networks Vol.14 No.6

Many studies have investigated the smart grid architecture and communication models in the past few years. However, the communication model and architecture for a smart grid still remain unclear. Today's electric power distribution is very complex and maladapted because of the lack of efficient and cost-effective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks, and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router, or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally, data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG) communication model improves the end-to-end packet delivery latency, throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.

Smart Grid Cooperative Communication with Smart Relay

Mohammad Helal Uddin Ahmed,Md. Golam Rabiul Alam,Rossi Kamal,홍충선,이성원 한국통신학회 2012 Journal of communications and networks Vol.14 No.6

Many studies have investigated the smart grid architecture and communication models in the past few years. However,the communication model and architecture for a smart grid still remain unclear. Today’s electric power distribution is very complex and maladapted because of the lack of efficient and costeffective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks,and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router,or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally,data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG)communication model improves the end-to-end packet delivery latency,throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.

State of the Art 3GPP M2M Communications toward Smart Grid

( Young Min Kwon ),( Jun Suk Kim ),( Min Young Chung ),( Hyunseung Choo ),( Tae-jin Lee ),( Mihui Kim ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.2

Recent advances in wireless communications and electronics has enabled the development of machine-to-machine (M2M) communications. This communication paradigm has been expected as an automated control and report solution for smart grid. The smart grid enables customers and operators to utilize the collected usage information from a large number of meters with transceivers for efficiency and safety. In this paper, we introduce architecture, requirements and challenges of M2M communications for smart grid. We extract technical issues that should be resolved in M2M communications to support the smart grid via third-generation partnership project (3GPP) cellular networks. We then present the current state of the art of research results to deal with such issues. Finally, we outline the open research issues.

IEEE 802.15.4 스마트 그리드 AMI MAC 프로토콜의 지연 성능 평가

구본진 ( Bon Jin Goo ),전용희 ( Yong Hee Jeon ) 대구가톨릭대학교 자연과학연구소 2012 자연과학연구논문집 Vol.10 No.1

A smart grid is a form of electricity network using digital communication technology. The smart grid communications system requires a high performance data delivery that enables reliable remote control systems. However, the communication systems used in the power industry today are too slow and too localized to support the integrated communications necessary for the modern power grid. AMI(Advanced Metering Infrastructure) is a two-way wireless or wired communications network overlaid on top of the power distribution system. This paper focuses on the delay characteristics of the AMI. The OPNET simulation was carried out for the performance evaluation. It is found that real-time data transmission is possible if the total offered load is restricted under 50% with 100 nodes and the offered load period from 20% to 50% makes the best trade-off in terms of network throughput, average delay etc.

스마트 미터 기술 현황과 미래 개발 방향 연구

정세진(Se-Jin Chung),손승현(Seung-Hyun Sohn),김철환(Chul-Hwan Kim),서인용(In-Yong Seo) 한국조명·전기설비학회 2018 조명·전기설비학회논문지 Vol.32 No.2

The establishment of a smart grid is one of countermeasures against global warming, and it is attracting attention as an alternative for energy efficiency. Accordingly, smart meter which is a key element in the construction of a smart grid is developing. The smart meter automatically measures the energy data used in real time and provides it to the energy suppliers and users. Additionally, It helps them to use energy efficiently. Smart meter communication between energy suppliers and users can be done in both directions by adopting AMI (Advanced Metering Infrastructure) method. However, there is no development related to the communication between smart meter devices. In this paper, the status of smart meter technology in domestic and foreign countries is investigated and the future directions of smart meter are suggested for grids.

스마트그리드를 위한 초고속 전력선통신기술 연구

최성수(Sungsoo Choi),오휘명(Hui-Myoung Oh),김영선(Youngsun Kim),김용화(Yong-Hwa Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.6

In this paper, we study on the reliability of Very High-rate Power Line Communication (VH-PLC) for Smart Grid, so that the resultant data rate is over 400Mbps at a physical layer. Firstly, reviewing the research trend of the PLC, we discuss the required techniques for supporting the Smart Grid. Considering a pre-specification with the value of several parameters, we investigate a multi-carrier modulation technique to overcome limitations of higher rate transmission under power line channel environments. Then, we propose a system specification of the VH-PLC in the sense of enhancing two features. One is resolving the problem of the co-existence of the deployed high-speed PLC according to the published standardization of KS X 4600-1 in Korea. The other is getting better performance on the grid adopting the diverse element techniques, such as multi-carrier modulation, a subcarrier utilization mode, a variable rate LDPC (Low Density Parity Check) code, and a time and frequency diversity technique. Further, a simulation tool, composed of an Event-Driven simulator and a Time-Driven simulator, is developed for the purpose of verifying the system performance and continuously cross-checking the test bench signal of the proposed VH-PLC system.

스마트그리드를 위한 다채널 동기 및 비동기 통신용 IC 설계

옥승규,양오 한국반도체디스플레이기술학회 2011 반도체디스플레이기술학회지 Vol.10 No.4

In this paper, the IC(Integrated Circuit) for multi-channel synchronous communication was designed by using FPGA and VHDL language. The existing chips for synchronous communication that has been used commercially are composed for one to two channels. Therefore, when communication system with three channels or more is made, the cost becomes high and it becomes complicated for communication system to be realized and also has very little buffer, load that is placed into Microprocessor increases heavily in case of high speed communication or transmission of high-capacity data. The designed IC was improved the function and performance of communication system and reduced costs by designing 8 synchronous communication channels with only one IC, and it has the size of transmitter/receiver buffer with 1024 bytes respectively and consequently high speed communication became possible. It was designed with a communication signal of a form various encoding. To detect errors of communications, the CRC-ITU-T logic and channel MUX logic was designed with hardware logics so that the malfunction can be prevented and errors can be detected more easily and input/output port regarding each communication channel can be used flexibly and consequently the reliability of system was improved. In order to show the performance of designed IC, the test was conducted successfully in QuartusⅡ simulation and experiment and the excellence was compared with the 85C3016VSC of ZILOG company that are used widely as chips for synchronous communication.

Design of a SoC Architecture based on PLC for Smart-Grid System

Younghyun Kim,Eunhye Im,Nogil Myung,Moonseok Choi,Sungho Ju,Byungseok Park 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7

In this paper, we present the design of a system-on-a-chip(SoC) based on Powerline Communication for Smart-Grid. The SoC deals with power information obtained from analog to digital converter(ADC) and transmits this data through PLC module. We integrate main processor, ADC and PLC function into a chip. Also a FPGA-based emulation system is introduced to evaluate a proposed SoC architecture.

Study on Efficient Impulsive Noise Mitigation for Power Line Communication

서성일 한국인터넷방송통신학회 2019 Journal of Advanced Smart Convergence Vol.8 No.2

In this paper, we propose the efficient impulsive noise mitigation scheme for power line communication (PLC) systems in smart grid applications. The proposed scheme estimates the channel impulsive noise information of receiver by applying machine learning. Then, the estimated impulsive noise is updated in data base. In the modulator, the impulsive noise which reduces the PLC performance is effectively mitigated through proposed technique. As an impulsive noise model, Middleton Class A interference model was employed. The performance is evaluated in terms of bit error rate (BER). From the simulation results, it is confirmed that the proposed scheme has better BER performance compared to the conventional model. As a result, the proposed noise mitigation improves the signal quality of PLC systems by effectively removing the channel noise. The results of the paper can be applied to PLC systems for smart grid.