Power-distribution-network distributed energy storage locating and sizing method considering quantitative characteristic of energy storage system
A technology of distributed energy storage and energy storage system, which is applied in the field of distributed energy storage site selection and capacity determination in distribution network, and can solve the problems such as large differences in energy storage equipment parameters
Active Publication Date: 2018-08-31
TIANJIN UNIV
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However, the parameters of different types of energy storage devices in actual engineering are quite different, and each is suitable for different demand scenarios
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[0094]For this embodiment, first input the impedance value of the line element in the IEEE 33 node system, the active power and reactive power of the load element, and the connection relationship of the network topology. The calculation example structure is as follows figure 2 As shown, see Table 1 and Table 2 for detailed parameters; connect 5 sets of wind turbines and 3 sets of photovoltaic systems, the power factor is 1.0, and the location and capacity are shown in Table 3; consider connecting three different types of distributed energy storage, the specific The parameters are shown in Table 4. The planned total power and total energy storage capacity are 1MVA and 4MWh respectively; the maximum number of energy storage system nodes allowed is 4; the service life of the energy storage system is 10 years, and the discount rate is 0.08; the time-of-use electricity price parameters are shown in Table 5 Finally, set the reference voltage of the system to 12.66kV and the referen...
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A power-distribution-network distributed energy storage locating and sizing method considering the quantitative characteristic of an energy storage system comprises the following steps of inputting the structure and the parameter of a selected power distribution system; acquiring a typical scene used for distributed energy storage locating and sizing, and the probability of the occurrence of eachscene throughout the year; establishing a power-distribution-network distributed energy storage locating and sizing model considering the quantitative characteristic of the energy storage system, wherein a target function and a constraint condition are included; solving the acquired power-distribution-network distributed energy storage locating and sizing model considering the quantitative characteristic of the energy storage system by using a mixed integer nonlinear programming mathematical solver; and outputting a solving result including the annual comprehensive cost of a power distributionnetwork, the annual operating cost of the power distribution network, the annual investment cost of the energy storage system, and an energy storage system type, location and capacity configuration scheme. In the invention, the power-distribution-network distributed energy storage locating and sizing model considering the quantitative characteristic of the energy storage system is established andsolved, and an economical and reasonable configuration scheme can be provided for the type selection, locating and sizing problems of the distributed energy storage system in the power distribution network.
Description
technical field [0001] The invention relates to a method for site selection and capacity determination of distributed energy storage in a distribution network. In particular, it relates to a method for site selection and capacity determination of distributed energy storage in distribution networks considering the quantitative characteristics of energy storage systems. Background technique [0002] With the increasing penetration of distributed power and new flexible loads, the traditional one-way passive distribution network is gradually evolving into an active distribution network. The access of large-scale distributed power brings benefits such as reducing system loss, improving power supply reliability, and reducing environmental pollution to the distribution network. influences. [0003] The advancement of the market-oriented reform of the power industry has created a free and fair power trading environment and realized the rational use of social resources. However, i...
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IPC IPC(8): G06Q10/06G06Q50/06G06K9/62
CPCG06Q10/06313G06Q10/06315G06Q50/06G06F18/23213
Inventor 李鹏赵天宇王成山宋关羽赵金利
Owner TIANJIN UNIV