A provincial power grid transmission and distribution pricing method considering power grid characteristics
A provincial-level power grid, transmission and distribution technology, applied in the field of electricity market, can solve the problems of not being able to well reflect the utilization of the power grid, and unable to accurately reflect the total allowable income of the power grid, so as to achieve the promotion of the healthy and sustainable development of power grid companies, Improve the efficiency of power resource use and guide the effect of rational power consumption
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Embodiment 1
[0042] 1. A provincial power grid transmission and distribution pricing method considering power grid characteristics, characterized in that the method includes the following steps:
[0043] a. Establish a calculation model for the permitted income of various levels of lines and substations of the provincial power grid during the calculation period of the transmission and distribution price according to the control method of the investment return rate:
[0044] a1. Calculation model of total permitted revenue I of transmission and distribution based on the control method of return on investment
[0045] I=Permit cost + Permit income + Tax
[0046] among them:
[0047] Allowed cost = depreciation fee + operation and maintenance fee
[0048] Allowable income = effective assets that can be withdrawn × weighted average return on capital
[0049] Weighted average return on capital = return on equity capital × (1-asset-liability ratio) + return on debt capital × asset-liability ratio;
[0050] a...
Embodiment 2
[0074] Such as figure 1 As shown, figure 1 In order to consider the characteristics of the power grid, the calculation method flow chart of the provincial power grid transmission and distribution cost includes the following steps:
[0075] Step a. Establish a calculation model for the permitted income of various levels of lines and substations of the provincial power grid during the calculation period of the transmission and distribution price according to the control method of the investment return rate;
[0076] Step b. Consider the actual power reverse flow of the power grid, and establish a balance model for the power supply and consumption of the provincial power grid;
[0077] Step c. Calculate the power supply ratio of each voltage level transformation of the provincial power grid;
[0078] Step d. Calculate the power supply and sales rate of each voltage level of the provincial power grid;
[0079] Step e. Establish a calculation model for the total permitted income of each vo...
Embodiment 3
[0128] According to the calculation model described in step a, the permitted income of grid lines and substations of each voltage level of the provincial power grid in an embodiment is obtained, and the results are shown in Table 1.
[0129] Table 1 The permitted income of the five voltage levels of the provincial power grid lines and substations
[0130]
[0131] Count the provincial grid G in an embodiment k , D k , P k / l , According to the provincial grid power supply and consumption balance model described in step b, establish figure 2 The power supply and consumption balance diagram of the provincial power grid shown.
[0132] according to figure 2 In the illustrated embodiment, the power supply and consumption balance diagram of the provincial power grid and the power supply and consumption model of the provincial power grid in step b are calculated to obtain S k , LossT k , LossL k ,As shown in table 2.
[0133] Table 2 Balance sheet of power supply and consumption of pro...
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