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 Wysłany: Nie 20:40, 26 Gru 2010 Temat postu: stivali ugg Principle-based incentive interruptibl |
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Principle-based incentive interruptible load
For a certain price will be adjusted periodically,[link widoczny dla zalogowanych], and adjusted according to the market clearing price is often related to changes; users may also be involved in incentive contracts are risk averse participants. Therefore,[link widoczny dla zalogowanych], Model 2 will solve the P and P. Relevant and supply companies and users for the case of risk aversion incentive contract design problem. If the retail price P subject to known users (P.,.) Normal distribution,[link widoczny dla zalogowanych], P subject to (P,) of the normal distribution. P and P related by the power company's market risk can be expressed as: Ru2 = E [p a (p )]=[+。 A 2coy (P,[link widoczny dla zalogowanych], P.)] (17) the risk for the user: 3 paragraph marrow Wei, et al: Based on the principle of incentive interruptible load 147 a - a ~ ... ~ one by one - a - a ~ a ... ~ - one hundred and eleven --~------ one thousand one hundred and eleven - one when the market price to P = 0. <45 (yuan / (kW-h)) calculated at the optimal interruptible load curve shown in Figure 3 1,2,3,4 1,2,3,4 represent the user. In addition to the user 5 then, other users can participate in load control. Because the power company to provide compensation for less than the minimum power loss of the user 5, but higher than other users of the minimum power loss. Under these conditions, loss of power if the user deliberately misrepresented costs, will likely be excluded from the interruptible load, the load can not be obtained by cutting benefits. The user cost of 3,4 only small power losses can participate in interruptible load in Figure 3, said as a straight line. Use of interruptible load, such as contract users are cutting the load in accordance with contract requirements, is expected to produce benefits such as maximum and minimum values listed in Table 1. Power supply can be achieved in that period the load reduction is 3.70482 ~ 10.3206MW ・ h, the benefits to 229.61 ~ 906.11 yuan, which shows that the method set by interruptible load is feasible. , 1OO to 300200J - 100 ∈] OO100020003000, 1000 when the hunger lIIkW Figure = 0.545 and s calculations Fig. 3TheresultsofsVSwhenP = 0.545 Table 1 User / load and save the power company cut costs Tab. ICustomer / utility 'Sloadreducingandfeesaving sudden abnormal rise when the market price, such as P = 0.74 (yuan / (kW ・ h)), the calculated optimal interruptible load shown in Figure 4, the benefits expected from the column in Table 2. The power company can reduce the time the load is 6.06049 ~ 25.8938MW ・ h, the benefits to 837.47 ~ 3648.25 yuan. And P = 0.545 (yuan / (kW-h)) when the data comparison, Table 2 provides compensation for the power company can make up for all users by reducing the loss of load and move, so examples of the 5 users can participate in the interruptible load, when the user more involved; in t ': 0.74 (yuan / (kW'h)) the total load when the user cut even more. Power peak in the reduced market price 01 {: l power more effectively reduce the market risk. Example shows that by interruptible load, the higher price in the market roar cut the load in the more users, the greater the reductions; to supply the load curve of a certain company to improve and reduce the electricity purchased during peak periods, saving the purchase electricity costs, which to some extent to Avoid the market risk. Three ooo800 three 6 (J (a 400 base 2000 Figure】 4P = 0.74 and s, when the results Fig.4TheresultsofsVSwhenP = 0.74 Table 2 users / load and save the power company cut costs Tab.2Customer/utillty 'Sloadreduclngandfeesaving4 Conclusion deregulation in the distribution side conditions, the power company's load control problems emerged, it relates to the normal operation of power systems, it is worth further study. In this paper, the principle motivation for real-time operation of interruptible load power company issue the analysis is made with the motivation of interruptible load load control methods, active user to adjust the load to help power companies reduce electricity peak load and there electricity, saving the cost of purchasing electricity, the operating cost. In this process , the power companies need accurate knowledge of the user's load regulation, power losses and other information on the size of this, the traditional load management data accumulated under the conditions in the electricity market is still l can continue to play for the car.
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