基于滑模观测器的质子交换膜燃料电池阴极进气系统解耦控制

doi:10.13229/j.cnki.jdxbgxb20220285

Abstract

Abstract:

A new decoupling control strategy was proposed for the air supply system of proton exchange membrane fuel cell （PEMFC）， which solves the problem of the cooperative control of the air flow rate and pressure， then realizes the high precision control of the both. A linear variable parameter model of the air flow rate and pressure was established， based on the model， a control scheme combining sliding mode observer and state feedback controller was designed， in which the gain value of state feedback was solved by linear quadratic regulator （LQR）. The control scheme is verified on PEMFC cathode experimental platform. The high precision control of the air flow rate and pressure can be realized， and the decoupling control of flow and pressure can be achieved.

Key words: automatic control technology, proton exchange membrane fuel cell, air supply control, decoupling control, sliding mode observer, linear quadratic regulator

CLC Number:

TK91

Jin-wu GAO,Yi-lin WANG,Hua-yang LIU,Yi-da WANG. Decoupling control for proton exchange membrane fuel cell air supply system based on sliding mode observer[J].Journal of Jilin University(Engineering and Technology Edition), 2022, 52(9): 2156-2167.

Figures/Tables 14

Fig.1

Table 1

Equation of parameters"

$a 11 = ? f 1 ? p c a × R a i r T V c a$	$a 21 = R a i r T V c a$
$b 11 = ? f 1 ? N c p × 1 T c p$	$b 12 = - ? f 1 ? p c a × R a i r T V c a$
$b 22 = - R a i r T V c a$

Table 1

Fig.2

Fig.3

Fig.4

Table 2

Throttle Angle fitting polynomial coefficient"

c 1 = 460.2

c 6 = - 0.026 ? 12

c 2 = - 9.62

c 7 = - 0.000 ? 150 ? 8

$c 3 = 3.456$

$c 4 = 0.066 ? 46$

$c 5 = - 0.028 ? 26$

$c 8 = 6.487 × 10 - 5$

$c 9 = 0.000 ? 102 ? 6$

$c 10 = 8.76 × 10 - 5$

Table 2

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Fig.11

Fig.12

References 20

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Decoupling control for proton exchange membrane fuel cell air supply system based on sliding mode observer

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