CN105652108A - Detection method of flexible direct current power transmission system and apparatus thereof - Google Patents
Detection method of flexible direct current power transmission system and apparatus thereof Download PDFInfo
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Abstract
The invention discloses a detection method of a flexible direct current power transmission system and an apparatus thereof. The method comprises the following steps of acquiring a failure rate and/or a repair rate of engineering elements contained in the flexible direct current power transmission system to be detected, wherein the failure rate is used for expressing a fault generation frequency of the engineering elements and the repair rate is used for expressing the repair rate after the engineering elements have faults; according to the failure rate and/or the repair rate, acquiring a reliability parameter of the flexible direct current power transmission system to be detected, wherein the reliability parameter is used for expressing a performance index of the flexible direct current power transmission system to be detected; and according to the reliability parameter, determining a maintenance frequency of the flexible direct current power transmission system to be detected. In the prior art, reliability assessment can not be performed on the flexible direct current power transmission system. By using the method and the apparatus of the invention, the above technology problem is solved.
Description
Technical field
The present invention relates to power domain, specifically, it relates to the detection method of a kind of flexible direct current power transmission system and device.
Background technology
Flexible DC power transmission technology is the HVDC Transmission Technology of new generation based on all-controlling power electronics device, is the ideal scheme of the formation multiterminal element power transmission network generally acknowledged in the world. Compared with traditional high voltage dc transmission technology, owing to have employed full-controlled switch device, flexible direct current power transmission system can not only realize the quick adjustment of system wattful power and frequency, the quick adjustment of system voltage and wattless power can be realized, it is possible to realize the independence control of system active power of output and wattless power simultaneously. Therefore, flexible DC power transmission technology has application prospect widely in power system, it is possible to be applied to new-energy grid-connected, asynchronous electrical network interconnected, construct city direct current transmission and distribution net, power to remote districts, promote the electrical network quality of power supply, isolated island and offshore platform and power and realize multiterminal element power transmission network. The electric equipments of 2 common end flexible direct current power transmission system comprises by full-controlled switch device, backward diode, the converter valve clamping down on electric capacity etc. and form, connects the direct current cables of both sides converter valve, connects the wave filter of converter valve and electric power networks.
From 1999, Article 1 flexible DC power transmission engineering put into operation in the world, and flexible DC power transmission technology is applied very general in transmission and distribution networks. But, although flexible DC power transmission technical development is rapid, but the reliability assessment for flexible direct current power transmission system lacks systematic Study, and this makes the security of flexible direct current power transmission system to control.
For above-mentioned problem, effective solution is not yet proposed at present.
Summary of the invention
Embodiments provide detection method and the device of a kind of flexible direct current power transmission system, at least to solve the technical problem that flexible direct current power transmission system cannot be carried out reliability assessment by prior art.
An aspect according to embodiments of the present invention, provide the detection method of a kind of flexible direct current power transmission system, comprise: failure rate and/or the repair rate obtaining in flexible direct current power transmission system to be detected the engineering element comprised, wherein, described failure rate is for representing the frequency of described engineering element generation fault, and described repair rate is for representing the reparation speed after described engineering element generation fault; According to described failure rate and/or described repair rate, obtaining the reliability parameter of described flexible direct current power transmission system to be detected, described reliability parameter is for representing the performance index of described flexible direct current power transmission system to be detected; According to described reliability parameter, it is determined that the maintenance frequency of described flexible direct current power transmission system to be detected.
Further, described reliability parameter comprises the mean-time-between-failure; Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises: the inverse calculating described failure rate, obtains the described mean-time-between-failure.
Further, described reliability parameter comprises the average fault correcting time; Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises: the inverse calculating described repair rate, obtains the average fault correcting time.
Further, described reliability parameter includes efficiency; Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises: described failure rate and described repair rate is sued for peace, obtains first and value; Calculate described failure rate and described first and the ratio of value, described in obtaining, have efficiency.
Further, the failure rate of the engineering element comprised in the flexible direct current power transmission system that described acquisition is to be detected comprises: create sample set, wherein, described sample set comprises duration of service of sample engineering element and described duration of service corresponding sample failure rate; According to described duration of service and described sample failure rate, obtain the failure rate characteristic curve of described sample engineering element; According to the duration of service of described failure rate characteristic curve and described engineering element, it is determined that the described failure rate of described engineering element.
Another aspect according to embodiments of the present invention, additionally provide the detection device of a kind of flexible direct current power transmission system, comprise: acquiring unit, the failure rate of the engineering element comprised for obtaining in flexible direct current power transmission system to be detected and/or repair rate, wherein, described failure rate is for representing the frequency of described engineering element generation fault, and described repair rate is for representing the reparation speed after described engineering element generation fault; Calculating unit, for according to described failure rate and/or described repair rate, obtaining the reliability parameter of described flexible direct current power transmission system to be detected, described reliability parameter is for representing the performance index of described flexible direct current power transmission system to be detected; Determining unit, for according to described reliability parameter, it is determined that the maintenance frequency of described flexible direct current power transmission system to be detected.
Further, described reliability parameter comprises the mean-time-between-failure; Wherein, described calculating unit is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: the inverse calculating described failure rate, obtain the described mean-time-between-failure.
Further, described reliability parameter comprises the average fault correcting time; Wherein, described calculating unit is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: the inverse calculating described repair rate, obtain the average fault correcting time.
Further, described reliability parameter includes efficiency; Wherein, described calculating unit is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: described failure rate and described repair rate are sued for peace, obtain first and value; Calculate described failure rate and described first and the ratio of value, described in obtaining, have efficiency.
Further, described acquiring unit obtains in flexible direct current power transmission system to be detected the failure rate of the engineering element comprised for performing following step: create sample set, wherein, described sample set comprises duration of service of sample engineering element and described duration of service corresponding sample failure rate; According to described duration of service and described sample failure rate, obtain the failure rate characteristic curve of described sample engineering element; According to the duration of service of described failure rate characteristic curve and described engineering element, it is determined that the described failure rate of described engineering element.
In embodiments of the present invention, adopt the failure rate and/or repair rate that obtain in flexible direct current power transmission system to be detected the engineering element comprised, wherein, failure rate is for representing the frequency of engineering element generation fault, and repair rate is for representing the reparation speed after engineering element generation fault, according to failure rate and/or repair rate, obtaining the reliability parameter of flexible direct current power transmission system to be detected, reliability parameter is for representing the performance index of flexible direct current power transmission system to be detected, according to described reliability parameter, determine the mode of the maintenance frequency of described flexible direct current power transmission system to be detected, by determining the failure rate of engineering element that comprises in flexible direct current power transmission system to be detected and/or repair rate, and then obtain the reliability parameter of flexible direct current power transmission system to be detected, according to reliability parameter, flexible direct current power transmission system to be detected is assessed, determine that flexible direct current power transmission system to be detected is the need of maintenance, reach the object that flexible direct current power transmission system is carried out reliability assessment, thus achieve and improve the technique effect to flexible direct current power transmission system security, and then solve the technical problem that flexible direct current power transmission system cannot be carried out reliability assessment by prior art.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the part of the application, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the detection method of a kind of optional flexible direct current power transmission system according to embodiments of the present invention;
Fig. 2 is the schematic diagram of the failure rate curve of a kind of optional engineering element according to embodiments of the present invention;
Fig. 3 is the structural representation of the detection device of a kind of optional flexible direct current power transmission system according to embodiments of the present invention.
Embodiment
In order to make those skilled in the art understand the present invention program better, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first " in the specification sheets of the present invention and claim book and above-mentioned accompanying drawing, " the 2nd " etc. are for distinguishing similar object, and need not be used for describing specific order or precedence. Should be appreciated that the data of like this use can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except diagram here or describe those except order implement. In addition, term " comprises " and " having " and their any distortion, intention is to cover does not arrange his comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment are not necessarily limited to clearly list, but can comprise that clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Embodiment 1
According to embodiments of the present invention, provide the embodiment of the method for the detection method of a kind of flexible direct current power transmission system, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the schema of accompanying drawing, and, although show logical order in flow charts, but in some cases, it is possible to be different from the step shown or described by the execution of order herein.
Fig. 1 is the detection method of flexible direct current power transmission system according to embodiments of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, obtains in flexible direct current power transmission system to be detected failure rate and/or the repair rate of the engineering element comprised.
Wherein, failure rate is for representing the frequency of engineering element generation fault, and repair rate is for representing the reparation speed after engineering element generation fault.
Can selection of land, the failure rate obtaining in flexible direct current power transmission system to be detected the engineering element comprised comprises: create sample set, wherein, sample set comprises duration of service of sample engineering element and duration of service corresponding sample failure rate; According to duration of service and sample failure rate, obtain the failure rate characteristic curve of sample engineering element; According to the duration of service of failure rate characteristic curve and engineering element, it is determined that the failure rate of engineering element.
In order to calculate reliability parameter, the failure rate �� to flexible direct current power transmission system to be detected is first needed to carry out Modeling Calculation. Wherein, failure rate refers to the frequency of system jam, and as shown in Figure 2, for most engineering element, particularly semiconductor components and devices, failure rate �� presents one " bathtub shaped " curve form.
As shown in Figure 2, although failure rate �� is change in cycle life-cycle, but it is steady state value in most life cycle. Therefore, it is possible to the engineering element in flexible direct current power transmission system is approximately the exponential distribution model of permanent failure rate.
Step S104, according to failure rate and/or repair rate, obtains the reliability parameter of flexible direct current power transmission system to be detected.
Wherein, reliability parameter is for representing the performance index of flexible direct current power transmission system to be detected.
As the optional implementation of one, reliability parameter comprises the mean-time-between-failure; Wherein, according to failure rate and/or the repair rate of engineering element that sets in advance, the reliability parameter obtaining flexible direct current power transmission system to be detected comprises: the inverse calculating failure rate, obtains the mean-time-between-failure.
As another kind of optional implementation, reliability parameter comprises the average fault correcting time; Wherein, according to failure rate and/or the repair rate of engineering element that sets in advance, the reliability parameter obtaining flexible direct current power transmission system to be detected comprises: the inverse calculating repair rate, obtains the average fault correcting time.
As another optional implementation, reliability parameter includes efficiency; Wherein, according to failure rate and/or the repair rate of engineering element that sets in advance, the reliability parameter obtaining flexible direct current power transmission system to be detected comprises: failure rate and repair rate is sued for peace, obtains first and value; Calculate failure rate with first and be worth ratio, obtain there is efficiency.
For exponential distribution model, if failure rate is ��, repair rate is ��, and probability density function is f (t)=�� e-��t; Reliability function is R (t)=e-��t; Mean-time-between-failure=1/ ��; Average fault correcting time=1/ ��; There is efficiency A=��/(��+��).
For flexible direct current power transmission system, in system, each engineering element can carry out modeling by utilization index distributed model, if specify that failure rate ��, so that it may so that related reliability parameter is carried out quantitative Analysis.
Exemplarily, for a two ends flexible direct current power transmission system, the engineering element comprised has IGBT (InsulatedGateBipolarTransistor, insulated gate bipolar transistor npn npn), diode, damping capacitor, driving circuit, voltage and current transformer, isolating switch, refrigeration system and connection transformer etc. For whole system, total failure rate �� of systemtotalEqual each engineering element failure rate �� sum of internal system, such as, shown in table 1.
Table 1
As can be seen from Table 1, the failure rate of two ends flexible direct current power transmission system is all element failure rate sums in inside, 269.508/ 1 hundred ten thousand hours (2.36/), mean-time-between-failure=1/ ��total=0.43 year, if being 24 days servicing time, then repair rate ��total=365/24=15.2/, then system has efficiency A=��total/(��total+��total)=97.25%.
Step S106, according to reliability parameter, it is determined that the maintenance frequency of flexible direct current power transmission system to be detected.
After obtaining reliability parameter, it is possible to according to reliability parameter, it is determined that the maintenance frequency of flexible direct current power transmission system to be detected, such as, it is determined that flexible direct current power transmission system to be detected needs maintenance how many times within following for some time.
By calculation result it may be seen that flexible direct current power transmission system reliability is on the low side, mainly withstand voltage due to current single IGBT is lower for this, needs the framework adopting multiple IGBT cascade in high-voltage applications field, because this increasing the failure rate of system.
For Multi-end flexible direct current transmission system, it is also possible to utilization index distributed model, the related reliability parameter of system is calculated according to the method described above.
The present invention proposes a kind of method of reliability parameter calculating flexible direct current power transmission system, the reliability parameter of flexible direct current power transmission system can be carried out quantitative Analysis, can the reliability of effective evaluation flexible direct current power transmission system according to calculation result, for measuring and calculating flexible direct current power transmission system cost, reasonable schedule system turnaround plans is significant.
Pass through above-mentioned steps, the reliability parameter of flexible direct current power transmission system can be carried out quantitative Analysis, by quantitative Analysis result, can reasonable schedule system turnaround plans, reduction system fortune dimension expense, can rationally estimate program full-life period cost in the stage of approving and initiate a project simultaneously, thus Efficient Evaluation flexible direct current power transmission system project investment income.
Embodiment 2
According to embodiments of the present invention, additionally provide the detection device of the flexible direct current power transmission system of a kind of detection method for implementing above-mentioned flexible direct current power transmission system, as shown in Figure 3, the detection device of this flexible direct current power transmission system comprises: acquiring unit 302, calculating unit 304 and determining unit 306.
Wherein, acquiring unit 302, the failure rate of the engineering element comprised for obtaining in flexible direct current power transmission system to be detected and/or repair rate, wherein, described failure rate is for representing the frequency of described engineering element generation fault, and described repair rate is for representing the reparation speed after described engineering element generation fault; Calculating unit 304, for according to described failure rate and/or described repair rate, obtaining the reliability parameter of described flexible direct current power transmission system to be detected, described reliability parameter is for representing the performance index of described flexible direct current power transmission system to be detected; Determining unit 306, for according to described reliability parameter, it is determined that the maintenance frequency of described flexible direct current power transmission system to be detected.
Can selection of land, described reliability parameter comprises the mean-time-between-failure; Wherein, described calculating unit 304 is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: the inverse calculating described failure rate, obtain the described mean-time-between-failure.
Can selection of land, described reliability parameter comprises the average fault correcting time; Wherein, described calculating unit 304 is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: the inverse calculating described repair rate, obtain the average fault correcting time.
Can selection of land, described reliability parameter includes efficiency; Wherein, described calculating unit 304 is for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtain the reliability parameter of described flexible direct current power transmission system to be detected: described failure rate and described repair rate are sued for peace, obtain first and value; Calculate described failure rate and described first and the ratio of value, described in obtaining, have efficiency.
Can selection of land, described acquiring unit 302 obtains in flexible direct current power transmission system to be detected the failure rate of the engineering element comprised for performing following step: create sample set, wherein, described sample set comprises duration of service of sample engineering element and described duration of service corresponding sample failure rate; According to described duration of service and described sample failure rate, obtain the failure rate characteristic curve of described sample engineering element; According to the duration of service of described failure rate characteristic curve and described engineering element, it is determined that the described failure rate of described engineering element.
In embodiments of the present invention, adopt the failure rate and/or repair rate that obtain in flexible direct current power transmission system to be detected the engineering element comprised, wherein, failure rate is for representing the frequency of engineering element generation fault, and repair rate is for representing the reparation speed after engineering element generation fault, according to failure rate and/or repair rate, obtaining the reliability parameter of flexible direct current power transmission system to be detected, reliability parameter is for representing the performance index of flexible direct current power transmission system to be detected, according to reliability parameter, determine the mode of the maintenance frequency of flexible direct current power transmission system to be detected, by determining the failure rate of engineering element that comprises in flexible direct current power transmission system to be detected and/or repair rate, and then obtain the reliability parameter of flexible direct current power transmission system to be detected, according to reliability parameter, flexible direct current power transmission system to be detected is assessed, determine that flexible direct current power transmission system to be detected is the need of maintenance, reach the object that flexible direct current power transmission system is carried out reliability assessment, thus achieve and improve the technique effect to flexible direct current power transmission system security, and then solve the technical problem that flexible direct current power transmission system cannot be carried out reliability assessment by prior art.
Above-mentioned embodiment of the present invention sequence number, just to describing, does not represent the quality of embodiment.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, certain embodiment there is no the part described in detail, it is possible to see the associated description of other embodiments.
In several embodiments that the application provides, it should be appreciated that, disclosed technology contents, realizes by other mode. Wherein, device embodiment described above is only schematic, the such as division of described unit, can be that a kind of logic function divides, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or does not perform. Another point, shown or discussed coupling each other or directly coupling or communication connection can be the indirect coupling by some interfaces, unit or module or communication connection, it is possible to be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or can also be distributed on multiple unit. Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to is that the independent physics of each unit exists, it is also possible to two or more unit are in a unit integrated. Above-mentioned integrated unit both can adopt the form of hardware to realize, it is also possible to adopts the form of software functional unit to realize.
If described integrated unit realize using the form of software functional unit and as independent production marketing or when using, it is possible to be stored in a computer read/write memory medium. Based on such understanding, the technical scheme of the present invention in essence or says that part prior art contributed or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage media, comprises some instructions with so that computer equipment (can be Personal Computer, server or the network equipment etc.) performs all or part of step of method described in each embodiment of the present invention. And aforesaid storage media comprises: USB flash disk, read-only storage (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the detection method of a flexible direct current power transmission system, it is characterised in that, comprising:
Obtain in flexible direct current power transmission system to be detected failure rate and/or the repair rate of the engineering element comprised, wherein, described failure rate is for representing the frequency of described engineering element generation fault, and described repair rate is for representing the reparation speed after described engineering element generation fault;
According to described failure rate and/or described repair rate, obtaining the reliability parameter of described flexible direct current power transmission system to be detected, described reliability parameter is for representing the performance index of described flexible direct current power transmission system to be detected;
According to described reliability parameter, it is determined that the maintenance frequency of described flexible direct current power transmission system to be detected.
2. method according to claim 1, it is characterised in that, described reliability parameter comprises the mean-time-between-failure;
Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises:
Calculate the inverse of described failure rate, obtain the described mean-time-between-failure.
3. method according to claim 1, it is characterised in that, described reliability parameter comprises the average fault correcting time;
Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises:
Calculate the inverse of described repair rate, obtain the average fault correcting time.
4. method according to claim 1, it is characterised in that, described reliability parameter includes efficiency;
Wherein, described according to described failure rate and/or the repair rate of described engineering element that sets in advance, the reliability parameter obtaining described flexible direct current power transmission system to be detected comprises:
Described failure rate and described repair rate are sued for peace, obtains first and value;
Calculate described failure rate and described first and the ratio of value, described in obtaining, have efficiency.
5. method according to any one of claim 1 to 4, it is characterised in that, the failure rate of the engineering element comprised in the flexible direct current power transmission system that described acquisition is to be detected comprises:
Create sample set, wherein, described sample set comprises duration of service of sample engineering element and described duration of service corresponding sample failure rate;
According to described duration of service and described sample failure rate, obtain the failure rate characteristic curve of described sample engineering element;
According to the duration of service of described failure rate characteristic curve and described engineering element, it is determined that the described failure rate of described engineering element.
6. the detection device of a flexible direct current power transmission system, it is characterised in that, comprising:
Acquiring unit, the failure rate of the engineering element comprised for obtaining in flexible direct current power transmission system to be detected and/or repair rate, wherein, described failure rate is for representing the frequency of described engineering element generation fault, and described repair rate is for representing the reparation speed after described engineering element generation fault;
Calculating unit, for according to described failure rate and/or described repair rate, obtaining the reliability parameter of described flexible direct current power transmission system to be detected, described reliability parameter is for representing the performance index of described flexible direct current power transmission system to be detected;
Determining unit, for according to described reliability parameter, it is determined that the maintenance frequency of described flexible direct current power transmission system to be detected.
7. device according to claim 6, it is characterised in that, described reliability parameter comprises the mean-time-between-failure;
Wherein, described calculating unit, for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtains the reliability parameter of described flexible direct current power transmission system to be detected:
Calculate the inverse of described failure rate, obtain the described mean-time-between-failure.
8. device according to claim 6, it is characterised in that, described reliability parameter comprises the average fault correcting time;
Wherein, described calculating unit, for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtains the reliability parameter of described flexible direct current power transmission system to be detected:
Calculate the inverse of described repair rate, obtain the average fault correcting time.
9. device according to claim 6, it is characterised in that, described reliability parameter includes efficiency;
Wherein, described calculating unit, for performing following step according to described failure rate and/or the repair rate of described engineering element that sets in advance, obtains the reliability parameter of described flexible direct current power transmission system to be detected:
Described failure rate and described repair rate are sued for peace, obtains first and value;
Calculate described failure rate and described first and the ratio of value, described in obtaining, have efficiency.
10. device according to any one of claim 6 to 9, it is characterised in that, described acquiring unit obtains in flexible direct current power transmission system to be detected the failure rate of the engineering element comprised for performing following step:
Create sample set, wherein, described sample set comprises duration of service of sample engineering element and described duration of service corresponding sample failure rate;
According to described duration of service and described sample failure rate, obtain the failure rate characteristic curve of described sample engineering element;
According to the duration of service of described failure rate characteristic curve and described engineering element, it is determined that the described failure rate of described engineering element.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449992A (en) * | 2017-06-27 | 2017-12-08 | 全球能源互联网研究院 | A kind of flexible DC power transmission fault detection method and device |
| CN111049128A (en) * | 2019-12-10 | 2020-04-21 | 浙江大学 | Power system reliability improving method considering load prediction power utilization influence |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200522468A (en) * | 2005-03-18 | 2005-07-01 | Univ Chang Gung | The power flow model of the multiterminal voltage-source converter-based high voltage DC (M-VSC-HVDC) transmission system for large-scale power systems |
| US20060282239A1 (en) * | 2005-06-08 | 2006-12-14 | Chang Gung University | Method of setting-up steady state model of VSC-based multi-terminal HVDC transmission system |
| CN102289731A (en) * | 2011-06-30 | 2011-12-21 | 西安交通大学 | Method for maintaining state of power transmission equipment based on system risk |
| CN102495967A (en) * | 2011-12-12 | 2012-06-13 | 山东电力集团公司济宁供电公司 | Method for calculating repair cycle of power transformer in operation |
| CN102570447A (en) * | 2011-12-13 | 2012-07-11 | 中国电力科学研究院 | Development stage division method for power grid |
| CN103326392A (en) * | 2013-06-24 | 2013-09-25 | 南方电网科学研究院有限责任公司 | Reliability computation method of extra-high voltage direct-current power transmission converter valve set system |
| CN104682381A (en) * | 2015-01-26 | 2015-06-03 | 南方电网科学研究院有限责任公司 | Method for calculating reliability of flexible direct-current (DC) transmission system of large wind farm |
-
2015
- 2015-11-26 CN CN201510847381.1A patent/CN105652108B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200522468A (en) * | 2005-03-18 | 2005-07-01 | Univ Chang Gung | The power flow model of the multiterminal voltage-source converter-based high voltage DC (M-VSC-HVDC) transmission system for large-scale power systems |
| US20060282239A1 (en) * | 2005-06-08 | 2006-12-14 | Chang Gung University | Method of setting-up steady state model of VSC-based multi-terminal HVDC transmission system |
| CN102289731A (en) * | 2011-06-30 | 2011-12-21 | 西安交通大学 | Method for maintaining state of power transmission equipment based on system risk |
| CN102495967A (en) * | 2011-12-12 | 2012-06-13 | 山东电力集团公司济宁供电公司 | Method for calculating repair cycle of power transformer in operation |
| CN102570447A (en) * | 2011-12-13 | 2012-07-11 | 中国电力科学研究院 | Development stage division method for power grid |
| CN103326392A (en) * | 2013-06-24 | 2013-09-25 | 南方电网科学研究院有限责任公司 | Reliability computation method of extra-high voltage direct-current power transmission converter valve set system |
| CN104682381A (en) * | 2015-01-26 | 2015-06-03 | 南方电网科学研究院有限责任公司 | Method for calculating reliability of flexible direct-current (DC) transmission system of large wind farm |
Non-Patent Citations (3)
| Title |
|---|
| 丁明 等: "基于FD 法和模型组合的柔性直流输电可靠性评估", 《电力系统保护与控制》 * |
| 吕翔: "基于Markov过程的电网资产全寿命周期管理的理论研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 陈鹏 等: "特高压直流输电系统的简化可靠性模型及其应用", 《智能电网》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449992A (en) * | 2017-06-27 | 2017-12-08 | 全球能源互联网研究院 | A kind of flexible DC power transmission fault detection method and device |
| CN111049128A (en) * | 2019-12-10 | 2020-04-21 | 浙江大学 | Power system reliability improving method considering load prediction power utilization influence |
| CN111049128B (en) * | 2019-12-10 | 2021-04-27 | 浙江大学 | Power system reliability improving method considering load prediction power utilization influence |
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