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Sugon solutions for the Power Dispatching and communication Center of the State Grid

Background

From the development of hydropower and thermal power to the application of wind power and nuclear energy, the constant development of the power industry has provided powerful force for the implementation of the industrialization process. While the development of network technology and computer technology, as well as the increasing market level in the power industry, this industry has entered a market transaction state in which the power plants, grids and users may select and compete mutually, the completion of power transaction will depend more on the basic data platform and the communications of relevant information among different participants, therefore, it will become increasingly dependant to the information platform.


Core demands

The Energy Management System (EMS) is a kind of modern power comprehensive automation system based on computer technology, EMS is mainly applied in regional grids and provincial and municipal grid dispatching centers, mainly to provide various types of real-time information (including frequency, motor power, route power, bus voltage, etc.) about the grids for the grid dispatch administrators, implement dispatch decisions management and control, ensure the safe operation of the grids, improve the grid quality and reduce the operation costs of the grids. A general EMS system is composed of hardware platform, operating system platform, EMS/DMS support platform, power system fundamental applications and advanced power application software, etc. The basic module of EMS is SCADA (Supervisory Control and Data Acquisition), i.e. the data acquisition and monitoring system, it is applied mainly to complete data acquisition, processing and interpretation, storage and display, meanwhile, transmit these real-time information to other application modules.


Demand analysis

The cross regional grid dynamic stability monitoring system solution for State Grid Electric Power Dispatching and Communication Center may be divided into three levels, i.e. state, network and province, the grid dynamic stability monitoring warning system at each level shall finish the online stability prediction warning of the grid within the dispatch scope, all three levels of systems may share information and coordinate in work through the dispatch data network.


Solution

Integrating the data of existing EMS, offline computing system and WAMS, etc, comprehensively use the grid real-time data of EMS and data distributed in EMS of the regional grid dispatch center, set up a comprehensive data platform. Mainly to achieve data exchange between EMS, WAMS and other systems and various grid companies, integrate trend computing functions, achieve communication with the comprehensive data platform. Before the construction of the grid dynamic stability monitoring warning system, dynamic data gateway should be applied to realize real-time data exchange.


Parallel computing platform

Parallel cluster equipments are used to provide a common computing platform, automatically finish massive computing missions, the parallel computing platform is composed of the online parallel computing platform and the offline parallel computing platform.


Stability analysis warning and assessment

Implementing analysis and assessment on the comprehensive security stability of the current system operation state through online data provided by the data platform, evaluate the security of the present system operation state, give warning against the unsafe states, send stability assessment results to EMS.


Dispatch support decision

Based on the online stability analysis results, search for adjustment directions and degrees, propose effective and feasible measures, including adjustment of generator output, adjustment of tie-lines power, loads control and other preventive and control measures or optimization strategies.


Solutions review

Based on the main functional modules requirements of the dynamic warning system, the hardware platform must meet the following technical requirements:

  1. The hardware system size shall be expandable, the hardware system shall be high-performance, easy to be managed, so that to meet the development demands of the grid.

  2. The hardware system solution design should be able to meet the application demands of the parallel processing platform, the parallel processing platform obtains module data, operation data and other information from the comprehensive data platform and broadcast that to various computing nodes. Meanwhile, it sends the online dynamic security assessment results information, warning information and so on to EMS through the comprehensive data platform.


Solution topology structure

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Dawning Information Industry Co.,Ltd. Sugon Building, No.36 Zhongguancun Software Park, No.8 Dongbeiwang West Road, Haidian District, Beijing 100193

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E-mail:international@sugon.com

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