CN103558832A - Management and control system aiming at impact loads in metallurgical industry production - Google Patents
Management and control system aiming at impact loads in metallurgical industry production Download PDFInfo
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- CN103558832A CN103558832A CN201310556867.0A CN201310556867A CN103558832A CN 103558832 A CN103558832 A CN 103558832A CN 201310556867 A CN201310556867 A CN 201310556867A CN 103558832 A CN103558832 A CN 103558832A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
A management and control system aiming at impact loads in metallurgical industry production is suitable for the management and control over the impact loads generated in the metallurgical industry production. The management and control system computes the current total impact loads in a metallurgic plant in real time, controls equipment generating the impact loads to run concertedly and orderly through certain impact load management and control strategies, enables the impact loads to be maintained within a certain safe range, and prevents the impact loads from causing influences on the stable operation of a power grid.
Description
Technical field
The present invention relates to production and the control field of metallurgical process, be specifically related to the automatic management-control method of the impact load that LF refining furnace and steel rolling line produce in the course of the work.
Background technology
In Metallurgical Factory, have various power load equipment, the impact load that wherein LF stove and all kinds of steel rolling line produce is in process of production very large on the impact of electrical network in factory.
LF furnace apparatus is simple, mainly adopts the mode of arc heated to carry out refining to molten steel.At present, its steel grade that can process almost relates to all steel grades from special steel to general steel, applies very universal.But LF stove is in refining process during the actual arcing of electrode, can produce larger impact load, particularly when the electrode starting the arc, owing to originally will the slag at molten steel top being melted, so can use large current system, now can reach a maximal value to separate unit LF stove impact load.When many LF stoves are worked simultaneously, the impact load of the stack likely network system of Hui Dui Metallurgical Factory inside causes greater impact, affects the stable operation of electrical network in factory.
In Metallurgical Factory, also there is the steel rolling line of rolling all size steel, on every steel rolling line, have some roughing mills and finishing mill.Milling train is rolled the steel billet transmitting on steel rolling line, and when rolling, milling train can produce a large impact load.When the milling train of many steel rolling lines situation at synchronization rolling steel billet, the stack that now also can produce impact load, when the impact load value of stack surpasses certain limit, likely in Hui Dui factory, power grid operation impacts.
Therefore, be necessary that the impact load to producing in LF refining and steel rolling line production run carries out management and control, make the carrying out of the production harmonious orderly of LF refining and steel rolling line, in the situation that guaranteeing to produce normal operation, prevent that impact load from superposeing and affecting power network safety operation.
Summary of the invention
In order to realize the management and control to impact load in Metallurgical Factory, reduce the impact of impact load on power network safety operation in factory, the invention provides a kind of managing and control system for the impact load in metallurgy industry production.
The present invention has following technical scheme:
A managing and control system for impact load in metallurgy industry production, is characterized in that: described managing and control system comprises impact load management and control main website, impact load management and control substation and monitoring backstage; Between impact load management and control main website, impact load management and control substation and monitoring backstage, by Ethernet, carry out communication;
Total delivery and total power load value in the Metallurgical Factory that described impact load management and control main website gathers according to electrical control system, calculate total impact load value in current factory, based on predefined impact load management and control strategy, and the running status of the equipment of management and control as required, draw the management and control mode that needs management and control devices to above-mentioned, and management and control instruction is issued to corresponding impact load management and control substation;
Described impact load management and control substation receives after the management and control instruction that described impact load management and control main website issues, and the operation of the equipment of this substation institute management and control is controlled;
Described monitoring backstage shows in real time current impact load situation, and the ruuning situation of equipment, and can carry out switching operation by operational management personnel impact load management and control function, and can be in the distance manual management and control load equipment.
The present invention also further comprises following design proposal, has increased the reliability design of system, comprises following content:
It is a table apparatus that impact load management and control main website adopts list cover redundant configuration ，Ji main website, comprises two CPU, dual power supply, dual network configuration.
Impact load management and control substation adopts two cover redundant configuration, and each substation comprises two table apparatus, and every table apparatus is single CPU, single supply, dual network configuration, the complete independent operating of two table apparatus.
In the duplicating device of impact load management and control substation when a covering device operation exception or fault, this device can automatic alarm and automatic blocking control output, prevent misoperation.
In the duplicating device of impact load management and control substation, when a covering device operation exception or fault, another set of device continues to carry out the instruction that main website issues, and prevents tripping.
When equipment running status and locking information that impact load management and control substation two covering devices gather inconsistent; and two covering devices are during all without operation exception or fault warning; impact load management and control main website automatic alarm, and the instruction output of locking to this substation, prevent misoperation.
Each IO plug-in unit, the hot plug of communication plug-in unit support hardware, the operation of not impact of network node device off-line system.
The present invention has met the requirement of impact load management and control in Metallurgical Factory, prevents the impact of impact load on power network safety operation in factory, and reliability is high, and highly versatile can be good at meeting the requirement of Metallurgical Factory to safety and stability production and economy.
Accompanying drawing explanation
Fig. 1 is the managing and control system structural drawing of impact load of the present invention;
Fig. 2 is impact load managing and control system figure in a typical Metallurgical Factory;
Fig. 3 is impact load management and control policy logic figure.
Embodiment
Below in conjunction with Figure of description and by specific embodiment, technical scheme of the present invention is described in further detail.
Referring to Fig. 1, it is impact load managing and control system structural drawing of the present invention.Impact load managing and control system is comprised of an impact load management and control main website, several impact load management and control substations and a monitoring backstage, in system, by Ethernet, carries out communication.Impact load management and control main website communicates by letter with electrical control system by network, total delivery and power load value in the factory that reception electrical control system gathers.Impact load management and control substation receives the instruction of impact load management and control main website, and controls relevant load equipment.Total delivery and total power load value in the Metallurgical Factory that described impact load management and control main website gathers according to electrical control system, calculate total impact load value in current factory, based on predefined impact load management and control strategy, and the running status of the equipment of management and control as required, draw the management and control mode that needs management and control devices to above-mentioned, and management and control instruction is issued to corresponding impact load management and control substation; Described impact load management and control substation receives after the management and control instruction that described impact load management and control main website issues, and the operation of the equipment of this substation institute management and control is controlled; Described monitoring backstage shows in real time current impact load situation, and the ruuning situation of equipment, and can carry out switching operation by operational management personnel impact load management and control function, and can be in the distance manual management and control load equipment.
Referring to Fig. 2, be impact load managing and control system figure in a typical Metallurgical Factory.In this Metallurgical Factory by PMU(Phasor Measurement Unit, phasor measuring set) gather Chang Nei power plant for self-supply generated energy and external electrical network delivery, and gather in factory total power load value, impact load management and control main website is by Ethernet and PMU communication, receives in Chang Nei power plant for self-supply generated energy that PMU gathers and external electrical network delivery and factory always power load value.This Metallurgical Factory is divided into steel-making 1 factory, makes steel 2 factories, 1580 rolling lines and 2150 rolling lines, wherein makes steel and has the LF refining furnace of 3 12.1MW in 1 factory, makes steel and has the LF refining furnace of 5 21.5MW in 2 factories.This managing and control system totally 4 cover impact load management and control substations, respectively management and control make steel 1 factory, make steel 2 factories, 1580 rolling lines, 2150 rolling lines.Impact load management and control substation gathers respectively the running status of its corresponding power load equipment, and by impact load managing and control system communication network, running status is sent to impact load management and control main website.
Referring to Fig. 3, be impact load management and control policy logic figure.Impact load management and control main website calculates impact load value total in current factory by Real-time Load in the factory receiving, and compare with the impact load value of current reality according to impact load higher limit corresponding to the total delivery in current factory, if current impact load is less than impact load higher limit, only to making steel the larger LF refining furnace of 5 loads of 2 factories, carry out management and control, 5 LF stoves that do not allow to make steel in 2 factories put into operation simultaneously.By analysis, make steel the running status of 5 LF stoves in 2 factories, when 4 LF stoves having been detected, put into operation, remaining 1 LF does not put into operation constantly, and the control circuit of the LF stove also not putting into operation is carried out to locking.In the LF of 4 operations stove, have at least the running status of a LF stove to become when out of service, the LF stove unlocking by locking, allows it to put into operation.If current impact load is greater than impact load higher limit, except proceeding management and control making steel 2 factories, also to making steel 1 factory, carry out management and control, and locking 1580 steel rolling lines.To making steel, the mode that 1 factory carries out management and control is identical with steel-making 2 factories, and 3 LF stoves avoiding making steel in 1 factory put into operation simultaneously.When impact load is less than impact load higher limit, current impact load returns to after safe range, exits making steel the lock-in control of 1 factory and 1580 steel rolling lines.
Claims (7)
1. a managing and control system for the impact load in producing for metallurgy industry, is characterized in that:
Described managing and control system comprises impact load management and control main website, impact load management and control substation and monitoring backstage;
Between impact load management and control main website, impact load management and control substation and monitoring backstage, by Ethernet, carry out communication;
Described impact load management and control main website is according to the total delivery of electrical network in the Metallurgical Factory gathering and total power load value, calculate total impact load value in current factory, based on predefined impact load management and control strategy, and the running status of the equipment of management and control as required, draw the management and control mode that needs the equipment of management and control to above-mentioned, and management and control instruction is issued to corresponding impact load management and control substation;
Described impact load management and control substation receives after the management and control instruction that described impact load management and control main website issues, and the operation of the equipment of this substation institute management and control is controlled.
Monitoring backstage shows current impact load value in real time, and the running status that needs management and control devices, and can on monitoring backstage, be started or stop by operational management personnel the management and control function of impact load managing and control system impact load.
2. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
The described equipment that needs management and control is the equipment that produces impact load, i.e. ladle refining furnace LF in metallurgy industry (Ladle Refining Furnace) and all kinds of steel rolling line.
3. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
Total delivery of electrical network and total power load Value Data information source electrical control system in Metallurgical Factory in the Metallurgical Factory gathering, between impact load management and control main website and electrical control system, by Ethernet communication by correspondence, total delivery comprises that Chang Nei power plant for self-supply institute's generated energy and Metallurgical Factory's external power grid are to the electric weight of carrying in Metallurgical Factory.
4. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
Impact load management and control main website is single cover redundant configuration, and impact load management and control substation is two cover redundant configuration.
5. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
To producing the management and control mode of the equipment of impact load, be the locking method of operation and the permission method of operation: during the locking method of operation, equipment is set to blocking, forbid putting into operation, when allowing the method for operation, equipment is set to normal condition, can normal operation input.
6. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
Impact load management and control substation gathers the running state information of the equipment of its management and control, and this information is uploaded to impact load management and control main website.
7. the managing and control system of a kind of impact load in producing for metallurgy industry according to claim 1, is characterized in that:
The method that impact load management and control substation is controlled the operation of the equipment of its management and control is divided into two kinds, and a kind of is direct control method, and the break-make of the operational power source circuit by opertaing device is carried out the locking of opertaing device and allowed operation; A method for indirectly controlling, is about to the locking of equipment or allows instruction by network or hard wired mode, to be sent to the PLC control system of this equipment, by PLC control system, equipment is carried out locking or allows operation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105137904A (en) * | 2015-07-21 | 2015-12-09 | 中国重型机械研究院股份公司 | LF refining furnace electrode regulator redundancy control switching method |
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Application publication date: 20140205 |