Overview of enterprise energy management systems WMIS
As a large enterprise, energy management, energy and most of them have many kinds of media (are complicated, non-single mass media, changes frequently), outsourcing, self-exist (measured, clearing complex), the parameter variation range (the amount of pressure, temperature and other parameters change with time and large users) and so on.
In the management, scheduling, traditional summary statistics on the number of artificial or voice scheduling, etc., in such a way so that production parameters lag, management costs are high.Although some companies use optical fiber, cable, centralized collection, computer processing, but the costs are high, narrow building a long time.
The lack of large enterprises in the strong support of real-time data will result in management, scheduling is difficult, can not achieve energy efficiency, management of information technology to the enterprise reform has brought a very big problem.
Construction WMIS comprehensive enterprise energy management system will reduce product energy consumption, reduce energy production, supply losses, power system operation to improve energy security, reliability, reduce manpower costs, improve efficiency and quality of energy management, strengthen the basic information infrastructure, and to enhance informationlevel.
WMIS major functions of enterprise energy management systems
Site energy parameters, measurement data acquisition and processing real-time data
Wireless mobile data transmission
Energy basis of historical data storage, retrieval, analysis, statistics, analysis
Mobile and wireless, wired remote browser data entry, query, alarm, control
Energy production, supply scheduling dynamic equilibrium
Energy plan, accounting management
Automatic meter control instrumentation, energy monitoring and management
Energy scheduling voice telephony features (expandable)
Power station is running unattended Management (expandable)
Power equipment, wireless telemetry and remote control features (expandable)
Network function of the system
WMIS system monitoring and system structure of the object
Monitoring objects
WMIS management of enterprise energy management system is mainly targeted at enterprises involved in production and business activities to a variety of water, electricity, gas, wind, oil, all kinds of energy.
Liquid media: such as industrial water, domestic water, soft water, industrial oil, petroleum, diesel, chemical liquid and so on.
Gas media: such as blast furnace gas, coke oven gas, converter gas, industrial gas, compressed air, argon, oxygen, nitrogen, steam, natural gas and so on.
Power lines and equipment: If the 380V power electricity, 6KV hypertension, 110KV high-voltage, and other specifications of the voltage, current, frequency, power and various electrical equipment such as the operation and so on.
WMIS system structure
WMIS enterprise energy management system using distributed computer control system architecture, a multi-level monitoring center from the bottom-up step by step tandem, each level of the monitoring center connected to many of the control system network.System structure can be divided into three parts: the control center - transmission line - on-site monitoring unit (WFSU-Wireless Field Supervision Unit).
Main function of the monitoring center of each monitoring point for real-time monitoring of water, electricity, gas, wind measuring instruments and equipment status data, reported on the monitoring point of intelligent analysis of various information processing, and linkage alarm.The main control center and database stored procedures from the database, Web browser, composition, line running TCP / IP protocol, in line with the Ministry of Information Industry, the overall control system technical requirements.
Site monitoring unit, is responsible for collecting the various monitoring points of water, electricity, gas, wind measurement instrument data and monitoring center to report the data on a regular basis (real-time alarm information to report), while the implementation of the monitoring center to receive and send to the remote commands.Monitoring unit of major equipment for the WFSU-100F monitoring terminal.
Monitoring center and field transmission between the monitoring unit can be USSD, SMS and other means of transmission.
WMIS system components shown below: