Optimal Control of Energy Storage Based on Fuzzy Dependent-Chance Programming

2014 ◽  
Vol 530-531 ◽  
pp. 1003-1006 ◽  
Author(s):  
Jin Liu ◽  
Shu Qiang Zhao

In order to maximize the match between the output of the Hybrid Wind/Photovoltaic/ Energy storage System and the scheduling curve,the article takes the measure that optimizes and controls the energy storage device one day ahead.Due to the fuzziness of the wind and photovoltaic output, the optimal control method of energy storage is proposed based on a fuzzy dependent-chance programming theory. This method considers the constraints of the energy storage device including the power output and energy constrain, and the matching degree of each time is represented by credibility value.So the final goal is maximizing the mean value of the total credibility within a day of 96 periods.The genetic algorithm based fuzzy simulation is used to solve the model,then we can get the different periods of energy storage charge and discharge power corresponding to the credibility of maximum mean value.

SIMULATION ◽  
1969 ◽  
Vol 13 (3) ◽  
pp. 155-164 ◽  
Author(s):  
Billy H. Easter

To harness the energy contained in such unconventional sources as winds, tides, and sunlight, a power system must incorporate an energy storage device to act as a buffer between the source and the load. Since the size of the energy storage device depends upon the relative timing of the availability of energy and the load demand, a system simulation is a logical approach to the study and design of power systems using these unconventional en ergy sources. GPSS is presented as an excellent simula tion vehicle. The physical properties to be simulated are discussed and the resulting GPSS programs are presented. Some proposed applications for these power systems are presented.


2013 ◽  
Vol 392 ◽  
pp. 568-571
Author(s):  
Yun Lu ◽  
Yong Lai Zhao

The control strategy of energy storage system will have a direct impact on their economic performance and technical performance. Based on the complementary functional for the Super-capacitors and Batteries composed of hybrid energy storage system . Established energy storage system mathematical model by the state average method, which uses fuzzy adaptive PID and conventional PID control method to control and simulation the output power of energy storage device, voltage loop and current loop of the energy storage system, and comparative analysis it. The results show that fuzzy adaptive PID control system has a better dynamic response performance and stability.


2014 ◽  
Vol 1070-1072 ◽  
pp. 443-448 ◽  
Author(s):  
Feng Sun ◽  
Yi Zhao ◽  
Gang Wang ◽  
Xiao Xu Lu

Grid black start refers to the process that power with self-start ability starts and leads the restart of the entire grid in "full blackout" status. In this paper, it selects the wind power plant containing energy storage device as the black-start power to study the charging/discharging problems of VRB in the self- start process in wind field.


Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2280 ◽  
Author(s):  
Jie Li ◽  
Qianqian Jiang ◽  
Nannan Yuan ◽  
Jianguo Tang

Due to the broad application prospect, flexible and transparent electronic device has been widely used in portable wearable devices, energy storage smart window and other fields, which owns many advantages such as portable, foldable, small-quality, low-cost, good transparency, high performance and so on. All these electronic devices are inseparable from the support of energy storage device. Energy storage device, like lithium-ion battery and super capacitor, also require strict flexibility and transparency as the energy supply equipment of electronic devices. Here, we demonstrate the development and applications of flexible and transparent lithium-ion battery and super capacitor. In particular, carbon nanomaterials are widely used in flexible and transparent electronic device, due to their excellent optical and electrical properties and good mechanical properties. For example, carbon nanotubes with high electrical conductivity and low density have been widely reported by researchers. Otherwise, graphene as an emerging two-dimensional material with electrical conductivity and carrier mobility attracts comparatively more attention than that of other carbon nanomaterials. Substantial effort has been put on the research for graphene-based energy storage system by researchers from all over the world. But, there is still a long way to accomplish this goal of improving the performance for stretchable and transparent electronic device due to the existing technical conditions.


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