Independent microgrid capacity optimal configuration method considering load importance and electricity price excitation
A capacity optimization configuration, micro-grid technology, applied in the direction of circuit device, power network operating system integration, AC network with energy trade/energy transmission authority, etc., can solve the problem of lack of flexible load or interruptible, transferable load, operation and maintenance It is difficult to get guarantees, increase the complexity of system control and other problems, and achieve the effect of reducing input costs, improving accuracy and reducing system costs
Pending Publication Date: 2021-02-19
SHANGHAI ELECTRICGROUP CORP
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Problems solved by technology
Most of the areas where independent microgrids belong have backward infrastructure conditions, lack of so-called flexible loads or interruptible and transferable loads, and hybrid energy storage increases the control complexity of the system, which not only fails to really reduce costs, but also makes it difficult for later operation and maintenance. be guaranteed
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[0049] In order to make the present invention more obvious and understandable, the preferred embodiments are described in detail as follows in conjunction with the accompanying drawings:
[0050] Such as figure 1 As shown, the present invention provides a method for optimally configuring the capacity of an independent microgrid considering load importance and electricity price incentives. When planning power consumption in the region, the power load is divided into three categories for management according to the load importance, and combined with the power price incentive strategy during peak power consumption, the peak load of the microgrid is reduced. Considering the impact of load importance classification management and electricity price strategy comprehensively, with the planning objectives of comprehensive investment cost and system power failure rate, a weighted method is used to establish a microgrid capacity optimization configuration model. Using the improved parti...
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The invention relates to an independent microgrid capacity optimal configuration method considering load importance and electricity price excitation, and belongs to the technical field of power planning. The capacity configuration problem of the microgrid relates to coordination of economy, reliability and other aspects of the system. Power supply reliability and investment economy of a microgridsystem are determined by factors such as power supply capacity configuration, equipment utilization rate and the like. The investment economy is improved as much as possible while the power supply reliability of the system is guaranteed, and the microgrid system is reasonably planned and designed. In the design of the independent microgrid system, loads are classified and managed according to importance, an electricity price excitation strategy in an electricity peak period is implemented, and on the basis, an improved particle swarm optimization algorithm is used for planning and optimizing the capacity configuration of the microgrid, so that power supply is guaranteed, the investment cost of the independent microgrid is reduced, the economy of the microgrid is improved, and the wide application of microgrid projects is promoted.
Description
technical field [0001] The invention relates to a method for optimizing the capacity allocation of an independent microgrid considering load importance and electricity price incentives, and belongs to the technical field of electric power planning. Background technique [0002] Off-grid or independent microgrid is an effective method to solve the problem of power supply in areas deviated from the large grid area. However, under the current market conditions, due to the relatively high cost of equipment required to build a micro-grid, and the power revenue basically depends on the limited load, the overall yield of the micro-grid is low due to the lack of advanced planning and design. , Market investment enthusiasm has not been stimulated. [0003] Most of the independent micro-grid projects currently under construction are demonstration-oriented and not profitable. There are also some investment-type independent micro-grid projects. When designing capacity allocation, due ...
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IPC IPC(8): G06Q10/04G06Q30/02G06Q50/06G06N3/00H02J3/00H02J3/14H02J3/32
CPCG06Q10/04G06Q30/0206G06Q50/06G06N3/006H02J3/008H02J3/14H02J3/32H02J2203/20H02J2310/64Y04S10/50Y04S20/222Y04S50/14Y02B70/3225
Inventor 张灵杰陈国栋缪勇奚玲玲
Owner SHANGHAI ELECTRICGROUP CORP