1. Project Overview

"Energy saving and emission reduction" has become a basic national policy of the country. With the rapid development of the group company and the increasing number of generator sets, energy saving and emission reduction has become an important starting point for the implementation of the group company's scientific development. In order to comprehensively strengthen the energy-saving and emission-reduction management of the group company and further improve the management level of energy-saving and emission reduction, the group company needs to establish a complete, unified and scientific energy-saving and emission-reduction management system, in order to realize the scientific development of the group company, and create the "China Datang" brand lay a solid foundation.

Consumption difference analysis is an important means of energy saving and emission reduction, and building a consumption difference analysis system is an important part of establishing an energy saving and emission reduction management system. Use information technology to build a consumption difference analysis system covering the three-level responsible entities of the group company to realize real-time monitoring and dynamic benchmarking of the main indicators of energy saving and emission reduction, and to improve the group company's energy saving and emission reduction management level.

According to Datang Group's three-level energy consumption analysis system, Hebei Branch needs to establish a consumption difference system for Hebei Branch and build a production real-time information platform between Datang Hebei Branch and its subordinate power generation companies. Enable the branch company to timely grasp the important safety production real-time information of all generating units (such as load, power and main parameters of the unit) and the main environmental emission information of thermal generating units (such as soot, sulfur dioxide, nitrogen oxides, etc.), and carry out information on the subsidiary companies. Scientific decision-making and guidance; Datang branch currently has four thermal power plants, five wind power plants and one hydropower plant.

The consumption difference analysis system uses KingHisrian of Asia Control as the core to realize the collection, storage, analysis and display of power plant data.

2. Project features

3. system architecture

System architecture diagram

According to different system network levels and functions, the whole system is divided into three levels, from bottom to top: system data layer, data collection and network transmission layer, and application layer. The system structure is shown in Figure 1:

Main software products

Industrial database software—Beijing Yakong Industrial Database KingHistorian Software

Acquisition, calculation, alarm and display software—Datang Xianyi Software

Relational database-Orccle database

communication method

The power plants and Hebei branch are connected by VPN communication. The Hebei branch has established a VPN dedicated line with each power plant, dedicated for video conferencing, as a data communication between the power plant and the Hebei branch.