Power distribution network intelligent energy storage soft switch comprehensive planning method and system

A technology for comprehensive planning and power distribution system, applied in the fields of photovoltaic power generation, electrical components, circuit devices, etc., can solve the problem of affecting the adjustment effect, the intelligent energy storage soft switch is in its infancy, and the impact of improving the reliability of power supply of the distribution network is not considered, etc. question

Inactive Publication Date: 2020-09-18
STATE GRID ECONOMIC TECH RES INST CO +2
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Problems solved by technology

[0004] At present, the existing intelligent soft switch planning methods are mostly aimed at the double-terminal intelligent soft switch with a relatively single structure, and the planning research on the intelligent energy storage soft switch is still in its infancy.
The structure of the smart energy storage soft switch is relatively complex, and the components such as the inverter and the energy storage battery are different. At the same time, in the planning stage, it is necessary to consider the coordinated operation constraints of the inverter and the energy storage system of the smart energy storage soft switch. The configuration capacity also profoundly affects the adjustment effect
On the other hand, the existing intelligent energy storage soft switch planning methods do not consider the impact of intelligent energy storage soft switch on improving the reliability of distribution network power supply.

Method used

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  • Power distribution network intelligent energy storage soft switch comprehensive planning method and system
  • Power distribution network intelligent energy storage soft switch comprehensive planning method and system
  • Power distribution network intelligent energy storage soft switch comprehensive planning method and system

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Embodiment 1

[0184] Such as figure 2 As shown, for this embodiment, first input the impedance value of the line element in the IEEE 33 node calculation example, the active power and reactive power of the load element, and the network topology connection relationship, among which nodes 7, 10, 13, 17, 23 and 30 Connected to six groups of photovoltaic power generation systems, each with a capacity of 300kVA, equipped with five contact switches, the example structure is as follows figure 2 As shown, the detailed parameters are shown in Table 1 and Table 2; set the candidate position of the intelligent energy storage soft switch as five contact switches, the unit optimized capacity of the intelligent energy storage soft switch converter is 100kVA, and the unit capacity investment index is 2000 yuan / kVA; DC / DC converter unit can optimize the capacity of 100kVA, unit capacity investment index is 500 yuan / kVA; energy storage battery unit can optimize the capacity of 100kVA, unit capacity invest...

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Abstract

The invention relates to a power distribution network intelligent energy storage soft switch comprehensive planning method and system, and the method is characterized by comprising the following steps: 1) collecting related parameters of a to-be-planned power distribution system; 2) establishing an intelligent energy storage soft switching planning model; and 3) for a given typical operation sceneof the power distribution network and related parameters of the power distribution system, solving the intelligent energy storage soft switch coordination planning model by adopting a hybrid algorithm combining second-order cone programming and simulated annealing to obtain an optimal intelligent energy storage soft switch planning scheme. The effect of improving the power supply reliability of the active power distribution network by the intelligent energy storage soft switch is fully considered, and the method and system can be widely applied to the field of intelligent energy storage softswitch comprehensive planning in the active power distribution network.

Description

technical field [0001] The invention relates to a comprehensive planning method and system for an intelligent energy storage soft switch, in particular to a comprehensive planning method and system for an intelligent energy storage soft switch considering the power supply reliability of an active distribution network. Background technique [0002] In recent years, the global energy supply has rapidly transformed towards clean and low-carbonization. At the same time, power electronic equipment plays a key role in distributed power grid connection, AC and DC power distribution conversion, active filtering, and reactive power compensation. The new power transmission and distribution technology presents a development trend of power electronics. The form of distribution network is also undergoing revolutionary changes, and the transformation from traditional distribution network to active distribution network is gradually accelerating. The active distribution network has become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46H02J3/32H02J3/18H02J3/06
CPCH02J3/06H02J3/18H02J3/32H02J3/381H02J3/466H02J2203/10H02J2203/20H02J2300/24Y02E10/56Y02E40/30
Inventor 孙充勃宋毅原凯李敬如吴志力潘尔生郭铭群韩丰王成山李鹏宋关羽靳夏宁胡丹蕾姜世公唐亮孙辰军王卓然
Owner STATE GRID ECONOMIC TECH RES INST CO
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