含电动汽车的微电网模型预测负荷频率控制

doi:10.13229/j.cnki.jdxbgxb20180421

Abstract

Abstract:

With the development of the Vehicle-to-Microgrid (V2M) technique, Electrical Vehicles (EVs), which are considered as the controllable loads and also as the distributed energy storage units, are used to alleviate the frequency fluctuation of microgrid caused by the intermittent new energy. This paper studies the load frequency control problem of microgrid with EVs. Frequency regulation characteristics of the diesel generator and EVs are analyzed, respectively. Then, the model predictive control strategy is proposed for the load frequency control of microgrid with EVs. The simulation results show that when the system is subjected to a step load fluctuation, the proposed model predictive control strategy can reasonably allocate the output of each system, and quickly eliminate the frequency fluctuation. Moreover, it also extends the life of the generators while providing high-quality power to customers.

Key words: automatic control technology, model predictive control, load frequency control, microgrid, electrical vehicle

CLC Number:

TP273

Miao-miao MA,Jun-jun PAN,Xiang-jie LIU. Model predictive load frequency control of microgrid with electrical vehicles[J].Journal of Jilin University(Engineering and Technology Edition), 2019, 49(5): 1644-1652.

Figures/Tables 8

Fig.1

Fig.2

Fig. 3

Fig.4

Fig.5

Table 1

Parameters of microgrid system with EVs"

微电网系统

参数

数值

$T g$ /s

$T d$ /s

R/(Hz·pu^-1·MW)

$δ d g$ /(pu·MW·s^-1)

$μ d g$ /(pu·MW)

0.1

2.5

0.0018

0.06

EV1

$T e 1$ /s

$δ e 1$ /(pu·MW·s^-1)

$μ e 1$ /(pu·WM)

$E m a x$ /(pu·MW·h)

$E m i n$ /(pu MW·h)

0.02

0.025

0.95

0.80

EV2

$T e 2$ /s

$δ e 2$ /(pu·MW·s^-1)

$μ e 2$ /(pu·MW)

$E m a x$ /(pu·MW·h)

$E m i n$ /(pu·MW·h)

0.02

0.015

0.90

0.80

Table 1

Fig. 6

Fig. 7

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