TECHNICAL AND SYSTEM REQUIREMENTS FOR ADVANCED DISTRIBUTION

高级配电自动化技术----18届国际配电会议

TECHNICAL AND SYSTEM REQUIREMENTS FOR ADVANCED DISTRIBUTION AUTOMATION

M. McGranaghan EPRI Solutions United States

F. Goodman

EPRI United States

INTRODUCTION

Advanced Distribution Automation (ADA) will be a revolutionary approach to managing and controlling distribution systems. It will achieve a fully controllable and automated distribution system including the integration of distributed resources to optimise system performance. This paper describes the results of an EPRI roadmap development project that defines the important research and development needs to achieve the completely automated distribution system of the future.

The paper accomplishes the following objectives:

o describes the vision for ADA and characterizes its benefits for the power system of the future

o identifies the system and technology requirements for realizing this ADA vision over the next 20 years o identifies research needed to develop ADA and identifies coordination opportunities for accomplishing this research

The paper reviews existing distribution automation programs

and research initiatives from North American and

international utilities, manufacturers, and research

organizations. It includes results of a strategic planning

session held in New York in August 2004 with participation of

industry, academics, utilities, and research organizations

from around the world to help define the research agenda

and identify important coordination opportunities.

ADVANCED DISTRIBUTION AUTOMATION (ADA)

Electricity distribution system challenges are greater than

ever. Demand continues to increase, customers expect improved reliability and power quality, the system must allow for the integration of distributed resources, and regulators limit the investments that can be made to achieve these objectives. Electric distribution companies must continue to achieve improved economies of operation and find innovative ways to improve the system performance through technology

application. Distribution automation will play a key role in

operating and managing the distribution system of the future.

There are important needs or technology development and standardized approaches for applying the technology across the industry. Much of the research needed to provide the foundation for these technologies and their application needs to be performed in a collaborative manner with widespread

international participation. The collaborative research model will result in consistent approaches for technology application CIRED2005

Session No 5

that can result in significant economies when applied across

the industry. This is the reason for creating an ADA research initiative.

The ADA Program envisions distribution systems as highly automated systems with a more flexible electrical system architecture operated via open-architecture communications networks. As the systems improve, they will have increased capabilities for system performance (energy throughput),

reliability, and customer service options. Traditional distribution systems were designed to perform one function—distributing power to end-users. ADA will transform traditional systems into multifunctional systems

that take full advantage of new capabilities in power-electronics, information technology, and system simulation.

ADA also enables new utility customer service options.

The major components of ADA are: 1. Flexible electrical system architecture, including integration of new Intelligent Electronic Devices (IEDs), distributed resources (DR), and new electrical and electronic technologies. 2. Communication and control systems based on an open communication architecture and information exchange model. 3. Real time state estimation tools to perform predictive simulations and to continuously optimise system performance (energy, demand management, efficiency, reliability, and power quality) in real time.

Figure 1. The electrical system architecture and the communication

architecture must be developed together to achieve an automated system.

高级配电自动化技术----18届国际配电会议

Figure 1 illustrates the interrelated nature of the electrical system architecture development and the communications architecture development in order to achieve an automated system. The real-time system analysis tools bridge these two architectures to continuously optimise the system performance and operation.

ADA FUNCTIONAL REQUIREMENTS

ADA will consist of many individual functions and sectionalizers, and outage detection. However, advancements in Broadband Powerline (BPL) technologies and loop configurations may make this an attractive option for automation applications, especially when combined with customer service offerings based on BPL [3].

Landline communication options include telephone and fiber optics. Leased telephone lines are often brought into substations for SCADA-RTU communications. For distribution automation, telephone lines are not often used applications. These functions incorporate many new systems, equipment, and applications that will be part of the overall ADA system. Five important functional requirements can be defined for the overall system [1]. 1. Communication and control infrastructure

allowing integration of all distribution equipment and end user technologies into the ADA system.

2. Automation of all controllable distribution

equipment and functions, including system reconfiguration management to optimise performance and reliability.

3. Application of advanced technologies (e.g. power

electronics) where appropriate for advanced control and system p …… 此处隐藏：20853字，全部文档内容请下载后查看。喜欢就下载吧 ……