Pricing Method of Power Quality Based on User Demand Levels in Incremental Distribution Networks

doi:10.11985/2020.03.018

Abstract

Abstract:

Considering that the current research neglects the differentiated user demands in power quality pricing, a power quality pricing method for incremental distribution networks is proposed. First, the power cost, quality and reliability characteristics of incremental distribution networks are defined; the power supply service levels are classified according to the user power demands in the incremental distribution networks, and the user demand levels are determined by analytic hierarchy process. Next, based on practical survey in the pilot incremental distribution networks, a power quality based pricing model considering the above characteristics is established, and the pricing method and strategy of power quality based on user demand levels are constructed. Finally, the effectiveness and applicability of the proposed method and strategy are verified by typical case study. New ideas and strong support for the construction and operation of incremental distribution networks are provided.

Key words: Incremental distribution networks, power price characteristics, power quality, user demand levels, power quality based pricing

CLC Number:

TM711

LIU Xiaozhong,YANG Peng,YANG Zhe,ZHU Tao,WU Jiyan. Pricing Method of Power Quality Based on User Demand Levels in Incremental Distribution Networks[J]. Journal of Electrical Engineering, 2020, 15(3): 135-142.

Figures/Tables 15

References 16

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电能质量等级	电压偏差(%)	频率偏差(%)	三相不平衡(%)	电压波动(%)	谐波畸变(%)	用户平均停电频率/(次/户年)	系统平均停电持续时间/h
Q1	≤1.3	≤0.08	≤1.33	≤1.30	≤2.6	≤0.62	≤2.83
Q2	≤3.4	≤0.12	≤1.60	≤1.40	≤3.2	≤1.10	≤4.38
Q3	≤3.7	≤0.14	≤2.00	≤1.73	≤3.4	≤1.16	≤5.28
Q4	≤4.6	≤0.17	≤3.30	≤6.00	≤4.0	≤3.28	≤16.27
Q5	≤7.0	≤0.20	≤4.00	≤7.10	≤6.0	≤4.07	≤20.35
不合格	>7.0	>0.20	>4.00	>7.10	>6.0	>4.07	>20.35

方案	2020	2025	2030	2035	2040	2045	2050
园区用电量/TW·h	0.86	2.44	4.91	6.68	9.40	11.37	13.34
园区购电量/TW·h	0.91	2.61	5.25	7.15	10.05	12.16	14.27
电量相关收益/亿元	0.02	0.07	0.14	0.19	0.27	0.33	0.39
折现系数(%)	0.84	0.63	0.47	0.35	0.26	0.20	0.15
企业总收益/亿元	0.38	0.76	1.09	1.09	1.10	0.98	1.16
企业总成本/亿元	1.08	0.68	0.92	1.24	0.92	0.80	0.77
当年净利润/亿元	-0.71	0.07	0.18	-0.15	0.18	0.19	0.38
全资本总收益/亿元	-0.91	-0.83	-0.55	-0.04	0.87	1.73	2.79

用户类型	电压偏差(%)	频率偏差(%)	三相不平衡(%)	电压波动 (%)	谐波畸变(%)	平均停电频率/ (次/户年)	平均停电持续时间/h
工业	1.5	0.06	0.73	1.3	2.9	0.52	1.83
商业	3.2	0.14	1.40	1.4	5.2	0.92	4.05
物流仓储	3.5	0.17	2.80	4.4	4.1	1.15	7.66
居民	6.6	0.11	3.10	1.7	2.6	2.71	10.27
交通枢纽	6.4	0.15	3.80	6.8	5.5	2.07	6.35

电能质量需求	Q1	Q2	Q3	Q4	Q5
可靠性提升单价	280	220	130	—	—
电能质量治理单价	300	180	100	—	—
可靠性提升运维	24	22	13	—	—
电能质量治理运维	12	7.2	4	—	—

用地性质	平均负荷预测值/kW	电能质量需求	可靠性治理费/(元/kVA)	电能质量治理费/(元/ kVA)
科研/商务用地	4 414.5	Q2	194	159
医疗卫生用地	1 192.5	Q2	52	43
二类工业用地	74 283.75	Q2	3 268	2 674
一类物流仓储/ 二类工业用地	46 236.75	Q2	2 034	1 665
商务用地	3 456	Q3	90	69
商业用地	16 002	Q3	416	320
商业/商务用地	8 793	Q3	229	176
商业/仓储物流用地	59 243.25	Q3	1 540	1 185
居住用地	60 047.625	Q4	0	0
居住/商业用地	21 606.75	Q4	0	0
市场/商业用地	11 781	Q4	0	0
商务/市场用地	9 442.125	Q4	0	0
文化设施用地	28.75	Q4	0	0
行政/商业用地	7 533	Q4	0	0
物流仓储用地	6 723.75	Q4	0	0
中小学用地	1 982	Q4	0	0
防护绿地	659.5	Q5	0	0
港口用地	5 870	Q5	0	0
公共设施用地	1 328.75	Q5	0	0
公园绿地	404	Q5	0	0
广场用地	24.6	Q5	0	0
加油加气站用地	187.5	Q5	0	0
交通场站用地	844.5	Q5	0	0
交通枢纽用地	13 620.75	Q5	0	0
社会停车场	19.05	Q5	0	0
合计	355 725.4	—	7 578	6 089
0.75同时率	266 794.1	—	—	—