The Optimizing Strategy of Pulverizing System Operation Mode Through Dynamic Programming Algorithm

doi:10.11985/2015.12.011

Abstract

Abstract:

To meet the more and more strict requirement of environmental protection, and with the reducing of unit utilization hours, the profit space of fossil fired power plant has been squeezed continuously, power plant is improving production efficiency by way of operation mode optimization and technological transformation of equipment. Through dynamic programming algorithm, combining computer programming, optimizing the operation mode of the pulverizing system can reduce the working energy consumption, improve power supply efficiency of the unit, the method and thinking of energy saving has extension value.

Key words: Energy saving, dynamic programming algorithm, pulverizing system, operation mode optimization

CLC Number:

TM621.2

Yanchao LI. The Optimizing Strategy of Pulverizing System Operation Mode Through Dynamic Programming Algorithm[J]. Journal of Electrical Engineering, 2015, 10(12): 63-68.

Figures/Tables 7

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References 9

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机组负荷 (%)	机组给煤量 /(t/h)	磨煤机A给煤量 /(t/h)	磨煤机B给煤量 /(t/h)	磨煤机C给煤量 /(t/h)	磨煤机D给煤量 /(t/h)	制粉总耗电量 /kW	单耗 /(kW/t)
100	165	45	46	34	40	3 827.5	23.1
95	158	37	41	38	42	3 699.0	23.4
90	146	56	49	41	0	3 501.8	23.9
85	140	54	48	38	0	3 374.5	24.1
80	132	47	43	42	0	3 215.0	24.3
75	130	43	52	35	0	2 989.3	22.9
70	124	41	39	44	0	2 868.2	23.1
65	115	38	36	41	0	2 744.6	23.8
60	106	42	34	30	0	2 631.1	24.8
55	103	37	31	35	0	2 542.5	24.6
50	97	32	28	37	0	2 491.5	25.6
45	90	43	47	0	0	2 457.7	27.3
40	87	38	49	0	0	2 360.6	27.1
35	80	41	39	0	0	2 305.8	28.8
30	78	28	50	0	0	2 280.4	29.2

磨煤机	ai	bi	ci	R2
磨煤机A	0.336	-12.894	943.47	0.984 4
磨煤机B	0.810 9	-51.147	1 669	0.950 4
磨煤机C	0.239 9	-0.183	557.71	0.957 1
磨煤机D	0.069	20.109	0	1

机组负荷 (%)	机组给煤量 /(t/h)	磨煤机B给煤量 /(t/h)	磨煤机C给煤量 /(t/h)	磨煤机D给煤量 /(t/h)	制粉总耗电量 /kW	单耗 /(kW/t)
100	165	58	49	58	3 176.7	19.2
95	158	58	42	58	3 000.6	18.9
90	146	58	30	58	2 735.5	18.7
85	140	58	24	58	2 620.4	18.7
80	132	58	16	58	2 485.2	18.8
75	130	58	14	58	2 454.6	18.8
70	124	58	8	58	2 370.6	19.1
65	115	57	0	58	2 251.5	19.5
60	106	48	0	58	2 034.0	19.1
55	103	45	0	58	1 965.6	19.0
50	97	39	0	58	1 835.1	18.9
45	90	32	0	58	1 693.4	18.8
40	87	29	0	58	1 636.2	18.8
35	80	22	0	58	1 510.6	18.8
30	78	20	0	58	1 476.8	18.9

机组负荷 (%)	机组给煤量 /(t/h)	磨煤机B给煤量 /(t/h)	磨煤机C给煤量 /(t/h)	磨煤机D给煤量 /(t/h)	制粉总耗电量 /kW	单耗 /(kW/t)
100	165	55	55	55	3 265.0	19.7
95	158	52.7	52.7	52.6	3 144.6	19.9
90	146	48.7	48.7	48.6	2 942.2	20.1
85	140	46.7	46.7	46.6	2 844.3	20.3
80	132	44	44	44	2 715.7	20.5
75	130	43.3	43.3	43.4	2 683.0	20.6
70	124	41.3	41.3	41.4	2 591.2	20.8
65	115	38.3	38.3	38.4	2 457.5	21.3
60	106	53	0	53	2 152.5	20.3
55	103	51.5	0	51.5	2 116.3	20.5
50	97	48.5	0	48.5	2 045.6	21.0
45	90	45	0	45	1 965.6	21.8
40	87	43.5	0	43.5	1 932.2	22.2
35	80	40	0	40	1 856.3	23.2
30	78	39	0	39	1 835.1	23.5