Two-Stage Dispatch of CCHP Microgrid Based on NNC and DMC

doi:10.11930/j.issn.1004-9649.202212079

Abstract

Abstract:

The combination of combined cooling, heating and power (CCHP) and microgrid promotes the consumption of renewable energy. In order to improve the economy, environmental protection and stability of CCHP microgrid, a two-stage optimal dispatching model is proposed. The offline optimization stage is based on the demand response strategy, and the multi-objective model based on the normalized normal constraint method is established, and the optimal results are screened by the entropy-TOPSIS method. In the online optimization stage, a finite-time domain optimization model based on dynamic matrix control algorithm is established to track and optimize the offline optimization results with feedback correction to reduce the influence of uncertainty factors. Finally, a comparison scheme is designed to for analysis verify the effectiveness of the proposed optimization model.

Key words: CCHP microgrid, two-stage optimized scheduling, multi-objective optimization, normalized normal constraint method, dynamic matrix control algorithm

Suhao CHEN, Yue WU, Wei ZENG, Xiaohui YANG, Xiaopeng WANG, Yunfei WU. Two-Stage Dispatch of CCHP Microgrid Based on NNC and DMC[J]. Electric Power, 2024, 57(2): 171-182.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202212079

https://www.electricpower.com.cn/EN/Y2024/V57/I2/171

Figures/Tables 19

References 23

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时段		外购电价/(元·(kW·h)^–1)
01:00—09:00		0.471
09:00—19:00		1.195
19:00—23:00		0.876
23:00—24:00		0.471

时段		外购电价/(元·(kW·h)^–1)
01:00—09:00		0.471
09:00—19:00		1.195
19:00—23:00		0.876
23:00—24:00		0.471

参数	数值	参数	数值
${R_{{\text{gas}}}}$/(元·(kW·h)^–1)	2.350	${\lambda _{{\text{CO}}x}}$/(元·(kW·h)^–1)	0.017
${R_{{\text{bat}}}}$/(元·(kW·h)^–1)	0.034	${\lambda _{{\text{SO}x}}}$/(元·(kW·h)^–1)	0.00216
${R_{\text{b}}}$/(元·(kW·h)^–1)	0.018	${\lambda _{{\text{NO}}x}}$/(元·(kW·h)^–1)	0.0016
${R_{\text{h}}}$/(元·(kW·h)^–1)	0.025	${\kappa _{{\text{ec}}}}$	4
${R_{{\text{ec}}}}$/(元·(kW·h)^–1)	0.020	${\kappa _{{\text{ac}}}}$	0.7
${R_{{\text{mt}}}}$/(元·(kW·h)^–1)	0.047	${\eta _{\text{r}}}$	0.8
$ {R_{{\text{ac}}}} $/(元·(kW·h)^–1)	0.016	${\eta _{{\text{loss}}}}$	0.02
${R_{{\text{sell}}}}$/(元·(kW·h)^–1)	0.600	${\eta _{{\text{mt}}}}$	0.35
${\delta _{{\text{LHV}}}}$/((kW·h)·m^–3)	9.780	${\eta _{\text{b}}}$	0.9
${E_{{\text{bat}}}}$/(kW·h)	200.000	$S_{{\text{soc}}}^{\min }$	0.1
${E_{{\text{pv}}}}$/(kW·h)	40.000	$S_{{\text{soc}}}^{\max }$	0.9
${E_{{\text{wt}}}}$/(kW·h)	40.000	$S_{{\text{soc}}}^{t = 0}$	0.4

参数	数值	参数	数值
${R_{{\text{gas}}}}$/(元·(kW·h)^–1)	2.350	${\lambda _{{\text{CO}}x}}$/(元·(kW·h)^–1)	0.017
${R_{{\text{bat}}}}$/(元·(kW·h)^–1)	0.034	${\lambda _{{\text{SO}x}}}$/(元·(kW·h)^–1)	0.00216
${R_{\text{b}}}$/(元·(kW·h)^–1)	0.018	${\lambda _{{\text{NO}}x}}$/(元·(kW·h)^–1)	0.0016
${R_{\text{h}}}$/(元·(kW·h)^–1)	0.025	${\kappa _{{\text{ec}}}}$	4
${R_{{\text{ec}}}}$/(元·(kW·h)^–1)	0.020	${\kappa _{{\text{ac}}}}$	0.7
${R_{{\text{mt}}}}$/(元·(kW·h)^–1)	0.047	${\eta _{\text{r}}}$	0.8
$ {R_{{\text{ac}}}} $/(元·(kW·h)^–1)	0.016	${\eta _{{\text{loss}}}}$	0.02
${R_{{\text{sell}}}}$/(元·(kW·h)^–1)	0.600	${\eta _{{\text{mt}}}}$	0.35
${\delta _{{\text{LHV}}}}$/((kW·h)·m^–3)	9.780	${\eta _{\text{b}}}$	0.9
${E_{{\text{bat}}}}$/(kW·h)	200.000	$S_{{\text{soc}}}^{\min }$	0.1
${E_{{\text{pv}}}}$/(kW·h)	40.000	$S_{{\text{soc}}}^{\max }$	0.9
${E_{{\text{wt}}}}$/(kW·h)	40.000	$S_{{\text{soc}}}^{t = 0}$	0.4

电量削减区间/(kW·h)		单位补偿价格/(元·(kW·h)^–1)
$ [D_{{\text{IL}}}^0,D_{{\text{IL}}}^1] = [0, 10)$		$ C_{{\text{IL}}}^1= 0 $
$ [D_{{\text{IL}}}^1,D_{{\text{IL}}}^2]= [10, 20) $		$ C_{{\text{IL}}}^2= 0.3 $
$ [D_{{\text{IL}}}^2,D_{{\text{IL}}}^3]= [20, 30) $		$ C_{{\text{IL}}}^3 = 0.6$
$ [D_{{\text{IL}}}^3,D_{{\text{IL}}}^4]= [30, 40) $		$ C_{{\text{IL}}}^4 = 0.9$
$ [D_{{\text{IL}}}^4,D_{{\text{IL}}}^5] = [40, 50)$		$ C_{{\text{IL}}}^5= 1.2 $
$ [D_{{\text{IL}}}^5,D_{{\text{IL}}}^6]= [50, 60] $		$ C_{{\text{IL}}}^6 = 1.5$