CN101446985A - LCC control method for power system equipment - Google Patents
LCC control method for power system equipment Download PDFInfo
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- CN101446985A CN101446985A CNA2007101711443A CN200710171144A CN101446985A CN 101446985 A CN101446985 A CN 101446985A CN A2007101711443 A CNA2007101711443 A CN A2007101711443A CN 200710171144 A CN200710171144 A CN 200710171144A CN 101446985 A CN101446985 A CN 101446985A
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Abstract
The invention relates to an LCC control method for power system equipment, comprising the steps as follows: primary investment expense of the equipment is collected; the running expense of the equipment is collected; the expense for reconditioning and maintenance of the equipment is collected; the malfunction expense of the equipment is collected; the expense for scrap disposal is collected; the total expense is gained according to the collected data. Compared with the prior art, the invention has the advantages of improving the reliability of the equipment, reducing the final total cost, improving the quality of the product and optimizing the utilization of the social resource, and the like.
Description
Technical field
The present invention relates to the LCC control method, particularly a kind of LCC control method that is used for power system device.
Background technology
For cooperating and satisfy the needs of Shanghai World's Fair in 2010 and city center load development, Shanghai will be in the central city newly-built 500kV Expo underground substation, because its Special geography position and underground form, the lectotype selection at Expo station all has strict demand aspect reliability and maintainability, traditional lowest price acceptance of the bid form can't be satisfied the demand, need to develop one and overlap more science, rigorous equipment bid, the assessment of bids and verification method are used for the buying of Expo station equipment, and provide a cover practicable method for the engineering project of similarity from now on.Particularly, in the equipment purchase of electric system, often to run into following equilibrium process, as the balance between the reliability of the price of equipment and equipment; Balance between the type selecting of equipment and the maintenance of equipment mode; The type selecting of main equipment and the balance between standby redundancy, the secondary control element expense etc. from now on, and the LCC management provides the method for a cover system to solve above-mentioned equilibrium process.
Summary of the invention
Purpose of the present invention is exactly that a kind of science, the rigorous LCC control method that is used for power system device are provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of LCC control method that is used for power system device, it is characterized in that, and may further comprise the steps:
(1) the first input expense of collecting device;
(2) operating cost of collecting device;
(3) the repair and maintenance expense of collecting device;
(4) failure cost of collecting device;
(5) the retired disposal costs of collecting device;
(6) obtain total expenses according to the data of gathering.
Described first input expense comprises purchase commodity, the Installation and Debugging expense of equipment, and described purchase commodity comprises equipment purchase expense, on-the-spot service fee, specific purpose tool and first standby redundancy expense, supplier's traffic expense and the relevant expenses of taxation thereof, premium of insurance; Described Installation and Debugging expense comprises the debugging charge before equipment construction mounting cost, proprietor's traffic expense, equipment put into operation.
Described operating cost comprises equipment energy consumption expense, daily walkaround inspection expense and expenses of environmental protection, and described equipment energy consumption expense comprises the energy consumption cost of apparatus body wear and tear expense, equipment utility appliance; Described daily walkaround inspection expense comprises the tour equipment and the Master Cost of daily walkaround inspection needs and makes an inspection tour labour cost; Described expenses of environmental protection refers to the environmental fines that equipment in service maybe need be paid for the expense that satisfies environmental requirement and need ancillary cost.
Described repair and maintenance expense comprises overhaul, light maintenance, preventive trial and equipment maintenance cost.
Described failure cost comprises trouble hunting expense, breakdown loss expense; The trouble hunting expense comprises the scene rush to repair expense and returns repair in shop reason expense; The scene rush to repair expense of fault comprises supplier's equipment and materials expense, service fee; The equipment and materials expense and the labour cost that also comprise proprietor's needs; The expense that equipment returns factory maintenance to be needed comprise equipment rehabilitation expense and shop test expense, civil engineering destroy back rehabilitation expense, equipment slinging with, inventory-carrying cost with and expense such as proprietor's witness examination; The breakdown loss expense comprises loss of outage expense, equipment performance and life loss expense and indirect loss expense.
Described retired disposal costs comprised that equipment is removed and disposed artificial, cost of equipment, traffic expense and equipment is retired when handling expenses of environmental protection, and the equipment that should the deduct residual value when retired.
Compared with prior art, the inventive method has the raising equipment dependability, reduces final full cost, improves its product quality, advantages such as social resources optimization utilization.
Embodiment
Embodiment 1
(1) title: 220kV three-phase power transformer
Indoor three-phase three volume oil immersed types, the high pressure off circuit tap changing transfor mer
(by force) profit is cold
(2) quantity: 2
(3) capacity (separate unit): 300MVA
(4) system short-circuit electric current: the 50kA of 220kV system
The 25kA of 110kV system
The 25kA of 35kV system
(5) installation site: the main transformer body is installed in F3/B3, and (26.5m), cooling tower is installed in B1 (11.5m), the about 24m of the discrepancy in elevation of interior cyclic hydrostatic pressure.
(6) maintenance condition: the scene does not possess the maintenance of loosing core condition
LCC calculation specifications in this assessment of bids
Stated rate I=5%; Equipment benchmark life-span n=30.
First input expense CI
Purchase commodity+proprietor's mounting cost debugging charge+proprietor's traffic expense of CI=(after technology and commercial deviation adjustment) transformer equipment
The purchase commodity of transformer equipment is that the bid price is through technology and the adjusted price of scope of supply; Owner's Installation and Debugging expense and traffic expense are all determined according to Project Budget.
In the purchase commodity of equipment, the influence of equipment main performance index difference to apparatus value will be considered.Concrete computing method are seen the 2.2.6 joint.
Operating cost CO
During this assessment of bids LCC calculated, not taking environmental conservation into consideration expense and monitoring expense among the CO were mainly considered equipment energy consumption expense, daily walkaround inspection expense.
The daily expense of patrolling and examining of the annual transformer equipment energy consumption cost of CO=+every year
Equipment energy consumption expense=transformer equipment body energy consumption cost+utility appliance energy consumption cost
Annual transformer equipment body energy consumption cost=transformer body loss power * year hours run * cost electricity price
Transformer body loss power is transformer reactive loss and active loss sum.
Energy consumption cost=transformer equipment utility appliance the general power of transformer equipment utility appliance (as fan etc.) * year hours run * cost electricity price
According to deciding through degree of accepting and believing analysis, the utility appliance general power is by design load according to the count off of tender document institute for transformer body loss power in the formula, and the cost electricity price was by 2005 years real cost electricity prices.
Make an inspection tour number on work day * tour average salary on work day annual daily walkaround inspection expense=every year
Tour number on work day and average salary value in the following formula are all taken from estimation per design.
The addition of above-mentioned expense sum is drawn each annual CO, convert present worth again.
Repair and maintenance expense CM
This assessment of bids LCC mainly considers overhaul and light maintenance expense in calculating, and the preventive trial expense is included the large and small content of repairing in, and maintenance cost is not considered.
CM=overhaul cost+light maintenance expense
Overhaul cost=supplier's equipment and materials expense+supplier's service fee+proprietor's equipment and materials takes+proprietor people's number * wage
Light maintenance expense=supplier's equipment and materials expense+supplier's service fee+proprietor's equipment and materials takes+proprietor people's number * wage
Overhaul cost is determined by the regulation of same category of device maintenance quotation and Shanghai Electric Power Co No. the 664th, wealth word [2001] " power on " literary composition; The light maintenance expense is got the Shanghai Electric Power Co statistics.The time limit that overhaul or light maintenance take place provides data processing by the tenderer, but if the tenderer provides maintenance interval to have with the Shanghai Electric Power Co relevant regulations and conflicts, then carries out by the Shanghai Electric Power Co relevant regulations.
Above-mentioned each annual CM is converted present worth.
Failure cost CF
CF comprises trouble hunting expense and breakdown loss expense.
CF=corrective maintenance costs+breakdown loss takes
Corrective maintenance costs=fault probability of happening * scene rush to repair expense+fault probability of happening * return repair in shop to manage expense
Scene rush to repair expense=supplier's equipment and materials expense+supplier's service fee+proprietor's equipment and materials expense+proprietor's labour cost (comprising third party's expense of asking in addition)
Return repair in shop reason expense=equipment reparation and shop test expense+civil engineering and destroy back rehabilitation expense+equipment lifting and traffic expense+proprietor's witness examination expense
In the aforementioned calculation, the fault probability of happening is determined through degree of accepting and believing analysis according to the data that tender document provides, is adopted the industry statistic data in Shanghai in case of necessity.Shanghai does not have operational performance person, and transformers imported is calculated with Shanghai transformers imported failure rate, and domestic manufacturers' (comprising joint venture) are calculated with the homemade transformer failure rate in Shanghai.The scene rush to repair expense with return repair in shop reason expense and determine according to the Shanghai Electric Power Co actual experience data.
In this assessment of bids, the breakdown loss expense is only considered the loss of outage expense.
Breakdown loss expense=loss of outage expense
Loss of outage expense=fault probability of happening * loss of outage load * power off time * power supply profit
In the following formula, probability of malfunction is determined through degree of accepting and believing analysis according to the data that tender document provides, is adopted the industry statistic data in case of necessity.The loss of outage load is taken advantage of average load rate for rated capacity, and power off time is by each manufacturer's statistics or industry statistic mean value calculation, and the power supply profit is got Shanghai Electric Power Co 2005 annual actual power profits.
Above-mentioned each annual CF is converted present worth.
Retired disposal costs CD
Residual value+removal cost when retired expense CD=equipment is retired
Removal cost=0.468 * mounting cost
In the aforementioned calculation, remanent value of equipment is determined by recent actual recovered price, is counted by negative value.Removal cost is determined by budgetary estimate.
Claims (6)
1. a LCC control method that is used for power system device is characterized in that, may further comprise the steps:
(1) the first input expense of collecting device;
(2) operating cost of collecting device;
(3) the repair and maintenance expense of collecting device;
(4) failure cost of collecting device;
(5) the retired disposal costs of collecting device;
(6) obtain total expenses according to the data of gathering.
2. a kind of LCC control method that is used for power system device according to claim 1, it is characterized in that, described first input expense comprises purchase commodity, the Installation and Debugging expense of equipment, and described purchase commodity comprises equipment purchase expense, on-the-spot service fee, specific purpose tool and first standby redundancy expense, supplier's traffic expense and the relevant expenses of taxation thereof, premium of insurance; Described Installation and Debugging expense comprises the debugging charge before equipment construction mounting cost, proprietor's traffic expense, equipment put into operation.
3. a kind of LCC control method that is used for power system device according to claim 1, it is characterized in that, described operating cost comprises equipment energy consumption expense, daily walkaround inspection expense and expenses of environmental protection, and described equipment energy consumption expense comprises the energy consumption cost of apparatus body wear and tear expense, equipment utility appliance; Described daily walkaround inspection expense comprises the tour equipment and the Master Cost of daily walkaround inspection needs and makes an inspection tour labour cost; Described expenses of environmental protection refers to the environmental fines that equipment in service maybe need be paid for the expense that satisfies environmental requirement and need ancillary cost.
4. a kind of LCC control method that is used for power system device according to claim 1 is characterized in that described repair and maintenance expense comprises overhaul, light maintenance, preventive trial and equipment maintenance cost.
5. a kind of LCC control method that is used for power system device according to claim 1 is characterized in that described failure cost comprises trouble hunting expense, breakdown loss expense; The trouble hunting expense comprises the scene rush to repair expense and returns repair in shop reason expense; The scene rush to repair expense of fault comprises supplier's equipment and materials expense, service fee; The equipment and materials expense and the labour cost that also comprise proprietor's needs; The expense that equipment returns factory maintenance to be needed comprise equipment rehabilitation expense and shop test expense, civil engineering destroy back rehabilitation expense, equipment slinging with, inventory-carrying cost with and expense such as proprietor's witness examination; The breakdown loss expense comprises loss of outage expense, equipment performance and life loss expense and indirect loss expense.
6. a kind of LCC control method that is used for power system device according to claim 1, it is characterized in that, described retired disposal costs comprised that equipment is removed and disposed artificial, cost of equipment, traffic expense and equipment is retired when handling expenses of environmental protection, and the equipment that should the deduct residual value when retired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101711443A CN101446985A (en) | 2007-11-28 | 2007-11-28 | LCC control method for power system equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101711443A CN101446985A (en) | 2007-11-28 | 2007-11-28 | LCC control method for power system equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101446985A true CN101446985A (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101711443A Pending CN101446985A (en) | 2007-11-28 | 2007-11-28 | LCC control method for power system equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102930123A (en) * | 2011-08-08 | 2013-02-13 | 华东电力试验研究院有限公司 | Computing method and computing system for whole life cycle cost of cable |
| CN105488637A (en) * | 2015-12-29 | 2016-04-13 | 国网浙江省电力公司 | Calculation method for data asset whole life cycle cost |
-
2007
- 2007-11-28 CN CNA2007101711443A patent/CN101446985A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102930123A (en) * | 2011-08-08 | 2013-02-13 | 华东电力试验研究院有限公司 | Computing method and computing system for whole life cycle cost of cable |
| 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 |
| CN102495967B (en) * | 2011-12-12 | 2014-07-02 | 山东电力集团公司济宁供电公司 | Method for calculating repair cycle of power transformer in operation |
| CN105488637A (en) * | 2015-12-29 | 2016-04-13 | 国网浙江省电力公司 | Calculation method for data asset whole life cycle cost |
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Open date: 20090603 |