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Energy storage battery power control method and system
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A power control and energy storage battery technology, which is applied in battery data exchange, battery load switching, battery circuit devices, etc., can solve the problems of limited number of cycles and reduce the service life of energy storage battery packs, so as to improve service life and be powerful and applicable The effect of meeting the protection requirements of power regulation
Pending Publication Date: 2022-05-06
NARI NANJING CONTROL SYST
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[0003] Chemical energy storage devices such as lead-acid batteries, nickel-metalhydride batteries, lithium batteries, etc. have a limited number of cycles during use. Frequent switching of charge and discharge states or deep discharge will reduce the service life of the energy storage battery pack.
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Embodiment 1
[0048] Such as figure 1 As shown, the present invention provides a power control method for an energy storage battery, comprising the following steps:
[0049] Step 1. Obtain the remaining power of the energy storage battery pack, power adjustment instructions and output power in real time;
[0050] Obtain the remaining power (SOC, State of charge) of all energy storage battery packs at the current moment, the power adjustment command V and the output power P to judge the power change trend of the energy storage battery pack and check the remaining power of the energy storage battery pack.
[0051] Step 2. Obtain the power control efficiency matrix according to the working state of the energy storage battery pack and the range of adjustable constraint conditions;
[0052] The established power control efficiency matrix B is shown below,
[0053] B=[b 1 …b i …b n ] (1)
[0054] Among them, b i is the power control efficiency of the i-th energy storage battery pack, whe...
Embodiment 2
[0080] The present invention also provides an energy storage battery power control system, including:
[0081] The data acquisition module is used to obtain the remaining power of the energy storage battery pack, power adjustment instructions and output power in real time;
[0082] The power control efficiency matrix building module is used to obtain the power control efficiency matrix according to the working state of the energy storage battery pack and the range of the adjustable constraint bars;
[0083] The power output weighted matrix establishment module is used to obtain the power output weighted matrix according to the remaining power of the energy storage battery pack and the adjustment priority;
[0084] An objective optimization function establishment module, used to establish an objective optimization function according to the power control efficiency matrix and the power output weighting matrix;
[0085] The power control module is used to solve the target optimi...
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Abstract
The invention discloses a power control method for an energy storage battery. The method comprises the following steps: acquiring residual electric quantity, a power regulation instruction and output power of an energy storagebattery pack in real time; obtaining a power control efficiency matrix according to the working state of the energy storagebattery pack and the adjustable constraint strip range; obtaining a power output weighting matrix according to the residual electric quantity of the energy storage battery pack; establishing a target optimization function according to the power control efficiency matrix and the power output weighting matrix; according to the energy storage battery pack power optimization control method, the residual electric quantity and the current working state of the energy storage battery pack are fully considered, the energy storage battery pack is prevented from frequently switching the charging and discharging states, and the service life of the energy storage battery pack is prolonged.
Description
technical field [0001] The invention belongs to the technical field of power distribution control of energy storage battery packs, and in particular relates to a power control method and system of an energy storage battery. Background technique [0002] As countries around the world pay more and more attention to the issue of global warming, my country is vigorously promoting the development of a micro-grid system that integrates source-network-load-storage and multi-energy complementarity. Renewable energy sources such as wind power and photovoltaics have shortcomings such as randomness and intermittent nature. The micro-grid system can effectively improve the utilization rate of new energy and improve the economy and stability of the system by configuring energy storage devices that match wind power and photovoltaic capacity. [0003] Chemical energy storage devices such as lead-acid batteries, nickel-metalhydride batteries, lithium batteries, etc. have a limited number ...
Claims
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