CN102110982A - Method and device for monitoring power of extra-high voltage connecting line - Google Patents
Method and device for monitoring power of extra-high voltage connecting line Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a device for monitoring the power of an extra-high voltage connecting line. The method for monitoring the power of the extra-high voltage connecting line comprises the following steps of: acquiring a power error delta P of the extra-high voltage connecting line and an extra-high voltage area control error (ACE) in real time; in a two-dimensional plane, acquiring current coordinates by taking the power error delta P of the extra-high voltage connecting line as an abscissa axis and taking the extra-high voltage area control error (ACE) as an ordinate axis, and acquiring an advancing curve of the power error delta P of the extra-high voltage connecting line and the extra-high voltage area control error (ACE) by taking time scales as a curve advancing source; and when the advancing curve enters a correspondingly preset extra-high voltage running state area, a correspondingly preset monitoring strategy of the extra-high running state area is operated. The embodiment of the invention can realize visualization real-time monitoring and pre-warning of extra-high voltage power control.
Description
Technical field
The present invention relates to the power technology field, relate in particular to a kind of ultra high voltage interconnection power monitoring method and device.
Background technology
1000KV Changzhi-Nanyang-Jingmen extra high voltage line total length reaches 639KM, and the fluctuation of its transmission power is very big to the voltage influence of 1000KV side, and then can have influence on the safe and stable operation of ultra high voltage system.According to correlation computations to circuit operation, consider from the angle of safety, the undulating value of circuit transmission power must be controlled at ± the 300MW scope in.Therefore, to the extra high voltage line power fluctuation monitor in real time, analysis and early warning, have important practical significance.
1000KV Changzhi-Nanyang-Jingmen extra high voltage line is a domestic first bar extra high voltage line, and real-time monitoring and the analysis controlled about the power of extra high voltage line are brand-new problems.Domestic only North China, Central China Power Grid are being calculated, are being examined and carry out correlative study the index of correlation of ultra high voltage power control at present.
The research of existing ultra high voltage power control is the initial data according to the ultra high voltage operation, calculate ultra high voltage responsibility degree, carry out the statistics and the examination of ultra high voltage operating index on this basis, can not monitor the transient output fluctuation of ultra high voltage in real time, can not carry out the analysis of ultra high voltage power fluctuation in real time, therefore, can not reach the real-time monitoring and the early warning requirement of ultra high voltage power fluctuation.
Summary of the invention
The embodiment of the invention provides a kind of ultra high voltage interconnection power monitoring method and device, to realize the visual real-time monitoring and the early warning of the control of ultra high voltage power.
On the one hand, the embodiment of the invention provides a kind of ultra high voltage interconnection power monitoring method, and described method comprises: obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time; In two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE; When described propelling curve enters corresponding ultra high voltage running status when zone of presetting, move this corresponding preset monitoring strategy in ultra high voltage running status zone.
On the other hand, the embodiment of the invention provides a kind of ultra high voltage interconnection power monitor device, and described device comprises: acquiring unit is used for obtaining in real time ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE; Curved unit, be used at two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE; Processing unit is used for entering corresponding ultra high voltage running status when zone of presetting when described propelling curve, moves this corresponding preset monitoring strategy in ultra high voltage running status zone.
Technique scheme has following beneficial effect: obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time because adopt; In two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE; When described propelling curve enters corresponding ultra high voltage running status when zone of presetting, move the technological means of this corresponding preset monitoring strategy in ultra high voltage running status zone, so reached the visual real-time monitoring of ultra high voltage power control and the technique effect of early warning.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of ultra high voltage interconnection of embodiment of the invention power monitoring method flow chart;
Fig. 2 is a kind of ultra high voltage interconnection of embodiment of the invention power monitor device structural representation;
Fig. 3 is an embodiment of the invention processing unit structural representation;
Fig. 4 is an embodiment of the invention ultra high voltage interconnection power monitor device on-premise network structure chart;
Fig. 5 is an embodiment of the invention ultra high voltage power control monitoring schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, be a kind of ultra high voltage interconnection of embodiment of the invention power monitoring method flow chart, described method comprises:
101, obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time.
102, in two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE.
103, enter corresponding ultra high voltage running status when zone of presetting when described propelling curve, move this corresponding preset monitoring strategy in ultra high voltage running status zone.
Optionally, described ultra high voltage interconnection power deviation Δ P and the ultra high voltage Region control deviation ACE of obtaining in real time, comprise:, from EMS EMS, obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time by application server.
Optionally, described ultra high voltage running status zone of presetting can comprise one of following: normal condition zone, alarm condition zone, state of emergency zone, serious state region.
Optionally, described current coordinate points comprises the Diamond spot of 1 minute described ultra high voltage Δ P mean value and described ultra high voltage ACE mean value; Describedly enter corresponding ultra high voltage running status when zone of presetting when described propelling curve, move this corresponding preset monitoring strategy in ultra high voltage running status zone and comprise: highlighted demonstration is carried out in this ultra high voltage running status zone.
Optionally,, highlighted demonstration is carried out in this ultra high voltage running status zone when described propelling curve enters alarm condition when zone, and with the demonstration of glimmering of this ultra high voltage running status zone; When described propelling curve enters state of emergency zone or serious state region, highlighted demonstration is carried out in this ultra high voltage running status zone, and, sent alarm sound and telephone call simultaneously the demonstration of glimmering of this ultra high voltage running status zone.
Said method embodiment of the present invention has realized real-time collection, the transmission of ultra high voltage initial data and has analyzed, and adopted the matrix area analytical method that the variation of ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE is got in touch together, thereby the visual real-time monitoring and the early warning of the control of ultra high voltage power have been realized.
As shown in Figure 2, be a kind of ultra high voltage interconnection of embodiment of the invention power monitor device structural representation, described device comprises:
Curved unit 202, be used at two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE;
Optionally, described acquiring unit 201 is further used for by application server, obtains ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE from EMS EMS in real time.
Optionally, described ultra high voltage running status zone of presetting can comprise one of following: normal condition zone, alarm condition zone, state of emergency zone, serious state region.
Optionally, described current coordinate points comprises the Diamond spot of 1 minute described ultra high voltage Δ P mean value and described ultra high voltage ACE mean value; Described processing unit 203 is further used for entering corresponding ultra high voltage running status when zone of presetting when described propelling curve, moves this corresponding preset monitoring strategy in ultra high voltage running status zone and comprises: highlighted demonstration is carried out in this ultra high voltage running status zone.
Optionally, as shown in Figure 3, be embodiment of the invention processing unit structural representation, described processing unit 203 can comprise: first processing module 2031, be used for when described propelling curve enters the alarm condition zone, highlighted demonstration is carried out in this ultra high voltage running status zone, and with the demonstration of glimmering of this ultra high voltage running status zone; Second processing module 2032, be used for when described propelling curve enters state of emergency zone or serious state region, highlighted demonstration is carried out in this ultra high voltage running status zone, and, sent alarm sound and telephone call simultaneously the demonstration of glimmering of this ultra high voltage running status zone.
Said apparatus embodiment of the present invention has realized real-time collection, the transmission of ultra high voltage initial data and has analyzed, and adopted the matrix area analytical method that the variation of ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE is got in touch together, thereby the visual real-time monitoring and the early warning of the control of ultra high voltage power have been realized.
Below in conjunction with network structure general description is carried out in real time data acquisition, transmission and the displaying of system:
As shown in Figure 4, be embodiment of the invention ultra high voltage interconnection power monitor device on-premise network structure chart, this supervising device can be deployed in power grid security three districts, from the EMS system, gather ultra high voltage ACE data and ultra high voltage Δ P in real time by the DL476-92 agreement, system compresses packing with data, be sent to management and running monitoring large-size screen monitors in real time, system moves each client, and generate one minute statistics and be published to the WEB page.
This supervising device is gathered the ultra high voltage service data according to electrical network actual production ruuning situation, and ultra high voltage Δ P and ultra high voltage ACE are carried out linkage analysis, to realize the real-time monitoring and the early warning of the control of ultra high voltage power.
This supervising device is set up a two dimensional surface reference axis, with ultra high voltage Δ P be abscissa (coordinate points is respectively-600/-300/0/300/600), with ultra high voltage ACE is ordinate, coordinate plane is divided into 8 rectangular surfaces, it according to the normal region of ultra high voltage Δ P-300 to 300 characteristic value, and consider the positive negative sense of ultra high voltage ACE, 2 planes that system is provided with every diagonal angle are same attribute zone, like this, whole reference axis plane is divided for urgent, serious, warning, normal such four kinds of ultra high voltage running statuses.
When this supervising device receives real time data, in this rectangular area with (ultra high voltage Δ P, ultra high voltage ACE) draws current coordinate points for data value, and be that curve advances the source with the time scale, thereby depict the propelling curve of ultra high voltage Δ P and ultra high voltage ACE, when advancing curve motion to zones of different, this supervising device carries out highlighted demonstration with this zone automatically, when advancing curve to enter in the warning zone, the figure flicker is carried out in this zone, when advancing curve to enter in the urgent and serious zone, this regional graphics flicker, send alarm prompts such as alarm sound and telephone call simultaneously, thereby reached the visual real-time monitoring and the Alerting requirements of the control of ultra high voltage power.
Simultaneously, this supervising device calculates the mean value of tracing point in one minute, be plotted in the same reference axis with the rhombus coordinate points, the Diamond spot that system can draw in 5 minutes continuously distributes, intuitively demonstrate the tendency that advances curve, thereby the state of prediction ultra high voltage power fluctuation reaches the early warning in early stage of ultra high voltage operation.
As shown in Figure 5, for embodiment of the invention ultra high voltage power control monitoring schematic diagram, be divided into; Normal condition zone, alarm condition zone, state of emergency zone, serious state region.
The embodiment of the invention has realized real-time collection, the transmission of ultra high voltage initial data and has analyzed, and adopted the matrix area analytical method that the variation of ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE is got in touch together, thereby the visual real-time monitoring and the early warning of the control of ultra high voltage power have been realized.The embodiment of the invention is carried out real-time linkage analysis with ultra high voltage Δ P and ultra high voltage ACE first, the real-time monitoring and the early warning difficult problem of the control of ultra high voltage power have been solved, safety, stable operation to the ultra high voltage interconnection play an important role, reach the benign cycle of monitoring-early warning-control-feedback, had the important social meaning.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct related hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise above-mentioned all or part of step, described storage medium, as: ROM/RAM, disk, CD etc.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. ultra high voltage interconnection power monitoring method is characterized in that described method comprises:
Obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time;
In two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE;
When described propelling curve enters corresponding ultra high voltage running status when zone of presetting, move this corresponding preset monitoring strategy in ultra high voltage running status zone.
2. ultra high voltage interconnection power monitoring method according to claim 1 is characterized in that described ultra high voltage interconnection power deviation Δ P and the ultra high voltage Region control deviation ACE of obtaining in real time comprises:
By application server, from EMS EMS, obtain ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE in real time.
3. ultra high voltage interconnection power monitoring method according to claim 1 is characterized in that, it is one of following that described ultra high voltage running status zone of presetting comprises: normal condition zone, alarm condition zone, state of emergency zone, serious state region.
4. as ultra high voltage interconnection power monitoring method as described in the claim 3, it is characterized in that described current coordinate points comprises the Diamond spot of 1 minute described ultra high voltage Δ P mean value and described ultra high voltage ACE mean value; Describedly enter corresponding ultra high voltage running status when zone of presetting when described propelling curve, move this corresponding preset monitoring strategy in ultra high voltage running status zone and comprise: highlighted demonstration is carried out in this ultra high voltage running status zone.
5. as ultra high voltage interconnection power monitoring method as described in the claim 4, it is characterized in that,
When described propelling curve enters alarm condition when zone, highlighted demonstration is carried out in this ultra high voltage running status zone, and with the demonstration of glimmering of this ultra high voltage running status zone;
When described propelling curve enters state of emergency zone or serious state region, highlighted demonstration is carried out in this ultra high voltage running status zone, and, sent alarm sound and telephone call simultaneously the demonstration of glimmering of this ultra high voltage running status zone.
6. ultra high voltage interconnection power monitor device is characterized in that described device comprises:
Acquiring unit is used for obtaining in real time ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE;
Curved unit, be used at two dimensional surface, with described ultra high voltage interconnection power deviation Δ P is transverse axis, with described ultra high voltage Region control deviation ACE is the longitudinal axis, obtain current coordinate points, and be that curve advances the source with the time scale, obtain the propelling curve of described ultra high voltage interconnection power deviation Δ P and described ultra high voltage Region control deviation ACE;
Processing unit is used for entering corresponding ultra high voltage running status when zone of presetting when described propelling curve, moves this corresponding preset monitoring strategy in ultra high voltage running status zone.
7. as ultra high voltage interconnection power monitor device as described in the claim 6, it is characterized in that, described acquiring unit is further used for by application server, obtains ultra high voltage interconnection power deviation Δ P and ultra high voltage Region control deviation ACE from EMS EMS in real time.
8. as ultra high voltage interconnection power monitor device as described in the claim 6, it is characterized in that it is one of following that described ultra high voltage running status zone of presetting comprises: normal condition zone, alarm condition zone, state of emergency zone, serious state region.
9. as ultra high voltage interconnection power monitor device as described in the claim 8, it is characterized in that described current coordinate points comprises the Diamond spot of 1 minute described ultra high voltage Δ P mean value and described ultra high voltage ACE mean value; Described processing unit is further used for entering corresponding ultra high voltage running status when zone of presetting when described propelling curve, moves this corresponding preset monitoring strategy in ultra high voltage running status zone and comprises: highlighted demonstration is carried out in this ultra high voltage running status zone.
10. as ultra high voltage interconnection power monitor device as described in the claim 9, it is characterized in that described processing unit comprises:
First processing module is used for entering alarm condition when zone when described propelling curve, and highlighted demonstration is carried out in this ultra high voltage running status zone, and with the demonstration of glimmering of this ultra high voltage running status zone;
Second processing module, be used for when described propelling curve enters state of emergency zone or serious state region, highlighted demonstration is carried out in this ultra high voltage running status zone, and, sent alarm sound and telephone call simultaneously the demonstration of glimmering of this ultra high voltage running status zone.
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| CN103259274A (en) * | 2013-04-18 | 2013-08-21 | 华中科技大学 | Multi-area interconnected power network ultra-high voltage tie line power control method and controller |
| CN103407445A (en) * | 2013-08-18 | 2013-11-27 | 北京工业大学 | Automatic accelerator and brake switching control system for intelligent vehicle and method |
| US11509137B2 (en) | 2019-10-28 | 2022-11-22 | Enphase Energy, Inc. | Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166221A (en) * | 2013-03-30 | 2013-06-19 | 大连理工大学 | Ultra-high voltage grid operating control mode for controlling in-series execution of performance evaluation criterion |
| CN103259274A (en) * | 2013-04-18 | 2013-08-21 | 华中科技大学 | Multi-area interconnected power network ultra-high voltage tie line power control method and controller |
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| CN103407445A (en) * | 2013-08-18 | 2013-11-27 | 北京工业大学 | Automatic accelerator and brake switching control system for intelligent vehicle and method |
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| US11509137B2 (en) | 2019-10-28 | 2022-11-22 | Enphase Energy, Inc. | Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control |
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Address after: 100045 Beijing Fuxingmenwai Di Zang an Nan Xiang No. Patentee after: BEIJING YUPONT ELECTRIC POWER TECHNOLOGY CO., LTD. Patentee after: State Grid Corporation of China Patentee after: North China Grid Co., Ltd. Patentee after: North China Electrical Power Research Institute LLC Address before: 100045 Beijing Fuxingmenwai Di Zang an Nan Xiang No. Patentee before: Beijig Yupont Electric Power Technology Co., Ltd. Patentee before: State Grid Corporation of China Patentee before: North China Grid Co., Ltd. Patentee before: North China Electrical Power Research Institute LLC |