基于用户需求层级的增量配电网电能质量定价方法

doi:10.11985/2020.03.018

摘要/Abstract

摘要：

针对目前电能质量定价方法未考虑差异化用户需求层级的问题,提出了考虑不同用户需求层级的增量配电网电能质量定价方法。从电价特征指标入手,提炼了增量配电网的成本特征、电能质量特征和可靠性特征;提出根据增量配电网用户用电需求划分供电服务层级,采用层次分析法确定用户需求层级的方法;通过试点地区的实际增量配电网调研,搭建了增量配电网以电价特征为变量的按质定价电价模型,构建了一种基于用户需求层级的增量配电网电能质量定价方法;通过实际增量配电网算例的搭建,验证了所提方法和策略有效性和适用性,为增量配电网的建设运营提供了新的思路和支持。

关键词: 增量配电网, 电价特征, 电能质量, 用户需求层级, 按质定价

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

中图分类号:

TM711

刘晓忠,杨鹏,杨哲,朱涛,吴继岩. 基于用户需求层级的增量配电网电能质量定价方法[J]. 电气工程学报, 2020, 15(3): 135-142.

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.

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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	—	—	—