Economic Dispatch Method of Distribution Network Considering Carbon Emission Index

doi:10.16183/j.cnki.jsjtu.2021.482

Abstract

Abstract:

Under the vision of carbon neutrality, carbon dioxide emission allowance targets are gradually decreasing, and clean power sources will penetrate in an ultra-high proportion. The traditional distribution grid dispatching model needs to solve the problems of carbon emission compliance and strong intermittent leveling of clean power sources. Based on the analysis of the coupling relationship between carbon emission index and the economic cost of electric power, this paper proposes a novel dispatching model for the future state distribution grid with carbon and electric power couping, proposes an optimal dispatching strategy for distribution grid based on the second-order cone planning model for several scenarios of increasing carbon emission cost of system operaion, and verifies the effectiveness of the proposed method in the improved IEEE 33-node system. The example results show that the output and power generation cost of each distribution network change after considering the carbon emission index.

Key words: carbon emission allowance, distribution grid, carbon-electrical coupling, optimize dispatch, clean power

CLC Number:

TM732

CHEN Yuting, ZHAO Yi, WU Junda, SUN Wenyao, XIA Shiwei. Economic Dispatch Method of Distribution Network Considering Carbon Emission Index[J]. Journal of Shanghai Jiao Tong University, 2023, 57(4): 442-451.

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电网	清洁电源比例	碳排放量	场景1:低碳电源电力充足	场景2:低碳电源电力不足
电网A	低	高	电力自足/购电	电力自足下可售电
			碳排放自足/购碳排放权	购买碳排放权
电网B	高	低	电力自足/售电	电力不足需购电
			碳排放权不交易/碳排放权交易	碳排放权可交易

母线	最大功率/kW	能级/(kW·h)			放/充电效率	折旧成本/ [美元·(MW²·h)^-1]
母线	最大功率/kW	最小	最大	初始值	放/充电效率	折旧成本/ [美元·(MW²·h)^-1]
13(微网1)	50	50	200	100	0.9/0.9	20
18(微网2)	100	100	300	100	0.9/0.9	25
30(微网3)	100	100	300	200	0.85/0.85	15

母线	功率需求		无功出力
母线	有功/kW	无功/kvar	最小/kvar	最大/kvar
13	350	200	-100	500
18	10	40	-250	750
30	50	800	-200	600

起始节点	终止节点	线路电阻(p.u.)	线路电抗(p.u.)	起始节点	终止节点	线路电阻(p.u.)	线路电抗(p.u.)
1	2	0.057 526	0.029 324	3	23	0.281 515	0.192 356
3	4	0.228 357	0.116 300	23	24	0.560 285	0.442 425
4	5	0.237 778	0.121 104	24	25	0.559 037	0.437 434
5	6	0.510 995	0.441 115	6	26	0.126 657	0.064 514
6	7	0.116 799	0.386 085	26	27	0.177 320	0.090 282
7	8	0.443 860	0.146 685	27	28	0.660 737	0.582 559
8	9	0.642 643	0.461 705	28	29	0.501 761	0.437 122
10	11	0.122 664	0.040 555	30	31	0.607 953	0.600 840
11	12	0.233 598	0.077 242	31	32	0.193 729	0.225 799
12	13	0.915 922	0.720 634	32	33	0.212 759	0.330 805
13	14	0.337 918	0.444 796	21	8	1.247 851	1.247 851
14	15	0.368 740	0.328 185	9	15	1.247 851	1.247 851
15	16	0.465 635	0.340 039	12	22	1.247 851	1.247 851
16	17	0.804 240	1.073 775	18	33	0.311 963	0.311 963
17	18	0.456 713	0.358 133	25	29	0.311 963	0.311 963
2	19	0.102 324	0.097 644	2	34	0.307 595	0.156 668
19	20	0.938 508	0.845 668	9	35	0.651 378	0.461 705
20	21	0.255 497	0.298 486	29	36	0.316 642	0.161 285
21	22	0.442 301	0.584 805

∑P_d	微网1有功功率	微网2有功功率	微网3有功功率	∑P_d
3 715	80	130	140	4 515	320	370	460
3 815	110	160	180	4 615	350	400	500
3 915	140	190	220	4 715	380	430	540
4 015	170	220	260	4 815	410	460	580
4 115	200	250	300	4 915	440	490	620
4 215	230	280	340	5 015	470	520	660
4 315	260	310	380	5 115	500	550	700
4 415	290	340	420	5 225	530	580	740