Hydroelectric dynamic reservoir capacity economic dispatching method considering uncertainty
An uncertain and economical dispatching technology, applied in the field of economical dispatching, can solve problems such as loss of hydropower benefits, and achieve the effect of improving operational efficiency, accuracy, and flexibility
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Embodiment 1
[0070] The economic scheduling method of hydropower dynamic storage capacity considering uncertainty includes the following steps:
[0071] 1) Obtain basic reservoir information and hydrological prediction information.
[0072] The basic information of the input reservoir includes dead water level, flood limit water level, normal water storage level, and flood control high water level.
[0073] The hydrological prediction information includes a flood forecast period and a predicted reservoir inflow.
[0074] 2) Establish a dynamic control model of the reservoir considering the inflow error of the reservoir.
[0075] The steps to establish a reservoir dynamic control model considering the reservoir inflow error include:
[0076] 2.1) Calculate the variable volume V of reservoir ξ storage capacity in period t ξ (t), namely:
[0077]
[0078] In the formula, Q ξ,j (t) is the power generation flow of the jth hydroelectric unit of the reservoir ξ in the period t. is the n...
Embodiment 2
[0129] The economic scheduling method of hydropower dynamic storage capacity considering uncertainty includes the following steps:
[0130] 1) Input the basic information of the reservoir and hydrological prediction information.
[0131] 1.1) Input the basic information of the reservoir: dead water level (the lowest water level allowed to sink under the normal operation of the reservoir), flood limit water level (the water level parameter index set to ensure the reservoir’s flood control function), normal water storage level ( It is the highest water level stored by the reservoir under normal operation), and the high flood control water level (it is the highest water level reached in front of the dam when the reservoir encounters the design flood of the downstream flood control protection object).
[0132] 1.2) Input hydrological forecast information: flood forecast period (predicted flood arrival time), water inflow (predicted water inflow of the reservoir at each moment).
...
Embodiment 3
[0186] see figure 1 , the verification test of the economic scheduling method of hydropower dynamic storage capacity considering uncertainty, including the following steps:
[0187] 1) Input the basic information of the reservoir and hydrological prediction information
[0188] The input includes the basic information of the reservoir and the hydrological prediction information (forecast information of incoming water, flood forecast period, operation time of the reservoir switch gate), and the specific data display is shown in Table 1 and Table 2 (the hydrological prediction information of reservoir 1 and reservoir 2 are consistent ).
[0189] Table 1 Basic information of the reservoir
[0190]
[0191] Table 2 Incoming water forecast information
[0192]
[0193] (2) Input system basic information
[0194] There are 6 generators in the IEEE30 node system, among which G1-G3 are the hydroelectric units of reservoir 1, G4-G6 are the hydroelectric units of reservoir 2, ...
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