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A kind of energy storage device and dispatching method thereof

A technology of energy storage equipment and energy storage devices, applied in the direction of AC network load balancing, etc., can solve the problems of large calculation amount and long calculation time, and achieve the effect of simple algorithm, less calculation time and small calculation amount

Active Publication Date: 2021-06-01
北京鑫泰能源股份有限公司
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AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing technology, an energy storage device and its peak-shaving and valley-filling scheduling method are invented, which can solve the problems of large calculation amount and long calculation time of the peak-shaving and valley-filling algorithm

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  • A kind of energy storage device and dispatching method thereof
  • A kind of energy storage device and dispatching method thereof
  • A kind of energy storage device and dispatching method thereof

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Embodiment Construction

[0030] figure 1 is the load duration curve (LDC) graph, in which T x is the continuous discharge time of the energy storage, and T on the load duration curve (LDC) graph x The corresponding active power value is P x , the peak load is P 峰 , the ordinate represents the load power value, and the abscissa represents time.

[0031] figure 2 Calculate the continuous discharge time T of energy storage for the equal-area iterative algorithm x Schematic diagram, as can be seen from the figure, configuring an energy storage device with an appropriate capacity can reduce the load peak-to-valley difference, and the energy storage can last for a discharge time T x Calculate as follows: Calculate the average load power P by formula (1) mean , P(t) is the load power at time t, and T is the load duration curve period;

[0032]

[0033] According to the calculated P mean Find the corresponding time point T on the load duration curve mean , use the formula (2) to calculate the ele...

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Abstract

The invention discloses an energy storage device and a dispatching method thereof. The dispatching method includes the following steps: Step (1) importing load data of the power grid, drawing a load continuity curve (LDC) according to the load data; step (2) drawing a load continuity curve (LDC) according to the load duration The curve (LDC) determines the maximum discharge power and capacity of the energy storage device. The scheduling method of the present invention can effectively reduce the load peak-to-valley difference, and the algorithm is simple, practical, feasible, with a small amount of calculation and relatively less calculation time, and can quickly determine the capacity and discharge time of the energy storage device, ensuring that the energy storage device has peak-shaving capability While filling the valley, it maximizes economic benefits and saves input costs.

Description

technical field [0001] The invention relates to the technical field of optimization calculation of electric power devices, in particular to an energy storage device and a scheduling method for peak-shaving and valley-filling thereof. Background technique [0002] Using the power throughput characteristics of the energy storage system to absorb energy and store it for use during the low load period, release energy during the peak load period, and complete the task of peak load shaving and valley filling. Investing in upgrades, reducing device reserve capacity, and improving the utilization rate of power transmission and distribution equipment are beneficial to the economical operation of the power grid. At present, the algorithm research of peak shaving and valley filling mainly focuses on simulated annealing algorithm, gradient algorithm and dynamic programming algorithm. The disadvantages of the above algorithms are that the calculation amount is large and the calculation t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J3/32
CPCH02J3/28H02J3/32
Inventor 王中邹涛黄兴华朱宏林
Owner 北京鑫泰能源股份有限公司