Power grid characteristic-considered provincial power grid transmission/distribution pricing method
A technology of provincial power grid and power grid characteristics, applied in the field of electricity market, can solve the problems that cannot accurately reflect the total allowable income of the grade grid, can not reflect the level of grid usage well, and achieve the promotion and improvement of the healthy and sustainable development of grid companies Efficiency in the use of power resources and the effect of guiding rational use of electricity
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Embodiment 1
[0042] 1. A provincial power transmission and distribution pricing method considering the characteristics of the power grid, characterized in that: the method comprises the following steps:
[0043] a. According to the return on investment control method, establish a calculation model for the allowable income of all levels of lines and substations in the provincial power grid during the calculation period of the transmission and distribution price:
[0044] a1. Calculation model of the total allowable income I of transmission and distribution based on the control method of return on investment
[0045] I = permit cost + permit benefit + tax
[0046] in:
[0047] Permitted cost = depreciation fee + operation and maintenance fee
[0048] Permitted income = effective assets that can be withdrawn × weighted average return on capital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...
Embodiment 2
[0074] Such as figure 1 as shown, figure 1 The flow chart of the provincial power transmission and distribution pricing method considering the characteristics of the power grid includes the following steps:
[0075] Step a, according to the return on investment control method, establish a calculation model for the allowable income of all levels of lines and substations in the provincial power grid during the calculation period of the transmission and distribution price;
[0076] Step b. Considering the reality of grid power reverse flow, establish a provincial grid power supply and consumption balance model;
[0077] Step c, calculating the power supply ratio of each voltage level substation in the provincial power grid;
[0078] Step d. Calculating the power supply and sale ratio of each voltage level of the provincial power grid;
[0079] Step e, establish a calculation model for the total allowable income of each voltage level of the provincial power grid based on the pe...
Embodiment 3
[0128] According to the calculation model described in step a, the permissible 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 Permitted income of grid lines and substations in five voltage levels of provincial power grids
[0130]
[0131] Statistics of the provincial power grid G in an embodiment k 、D k , P k / l , according to the power supply and consumption balance model of the provincial power grid described in step b, establish as figure 2 The power supply and consumption balance diagram of the provincial power grid is shown.
[0132] according to figure 2 S k 、LossT k 、LossL k ,As shown in table 2.
[0133] Table 2 Provincial power grid power supply and consumption balance table
[0134]
[0135] According to the calculation formula in steps c and d and the data in Table 2, the power supply ratio α of each voltage level substat...
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