Energy storage-unit combined frequency modulation control method for maintaining battery SOC
A control method and technology of thermal power units, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problems of low frequency modulation performance indicators, achieve good returns, optimize frequency modulation effects, and avoid long-term full-power operation.
Active Publication Date: 2021-05-28
JILIN ELECTRIC POWER RES INST LTD +2
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to propose an energy storage-unit combined frequency modulation control method for maintaining the battery SOC. When the capacity of the energy storage system is constant, the SOC of the battery system can be maintained to solve the problem of low AGC frequency modulation performance index of the thermal power unit and improve the comprehensive frequency modulation. index
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0045] Embodiment 1: as Figure 2-Figure 4 shown
[0046] An energy storage-unit joint frequency regulation control method for maintaining battery SOC, comprising the following steps, and the following steps are performed in sequence:
[0047] Step S1, read the thermal power unit status, AGC command and energy storage system status in real time;
[0048] Step S2, when it is detected that the AGC instruction is updated, judge whether the respective operating states of the thermal power unit and the energy storage system are normal according to the respective operating information of the thermal power unit and the energy storage system;
[0049] If it is normal, record the size of the AGC command, the load of the unit, the output of the energy storage system, and read the information of the thermal power unit;
[0050] If not normal, the energy storage system stops running;
[0051] Step S3. If the absolute value of the AGC command-unit load>Pmax, start from the detection of ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an energy storage-unit combined frequency modulation control method for maintaining a battery SOC, and belongs to the technical field of power system frequency modulation. According to the invention, an energy storage-unit combined frequency modulation control method for maintaining the SOC of a battery is provided by taking the active power change rate of the energy storage system and the SOC of the battery as control variables, wherein the SOC of the battery system is maintained under the condition that the capacity of the energy storage system is fixed, so that the problem that the AGC frequency modulation performance index of a thermal power unit is low is solved, and the comprehensive frequency modulation index is improved.
Description
technical field [0001] The invention belongs to the technical field of power system frequency regulation, and in particular relates to an energy storage-unit combined frequency regulation control method for maintaining battery SOC. Background technique [0002] In recent years, with the continuous integration of new energy generation methods such as wind power generation and photovoltaic power generation, the operation and regulation of the power grid system has become more difficult, and the demand for frequency regulation resources in the power grid has also become higher and higher. At the same time, the proportion of traditional thermal power units has decreased, the available frequency regulation resources of the power grid have decreased, and the problem of insufficient frequency regulation capacity has become prominent. In addition, due to the rotational inertia of traditional thermal power units, the response to active power adjustment is slow. It has become a curren...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/24H02J3/46
CPCH02J3/32H02J3/241H02J3/466Y02E40/10Y02E70/30
Inventor 王忠言姜薇薇王松寒李佳司瑞才耿娜王春玲黄振群金春林刘希闻姚卓宏周驰夏志李茹艳杨小芬
Owner JILIN ELECTRIC POWER RES INST LTD