CN107203129B - Regional triple co-generation increment optimization control method - Google Patents

Regional triple co-generation increment optimization control method Download PDF

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CN107203129B
CN107203129B CN201710343020.2A CN201710343020A CN107203129B CN 107203129 B CN107203129 B CN 107203129B CN 201710343020 A CN201710343020 A CN 201710343020A CN 107203129 B CN107203129 B CN 107203129B
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optimized
energy supply
regional
equipment
generation system
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CN107203129A (en
Inventor
乐平
高雄伟
陈建平
孙妮
舒征东
褚玉忠
王建平
沈丽华
胡蕊
吴晓军
王婧
徐旭东
李暚
徐灏斌
石玉洁
胡俊芬
余斌
吴军
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SHANGHAI ELECTRIC POWER INDUSTRIAL CO LTD
Shanghai Hongqiao Business District New Energy Investment Development Co ltd
SHANGHAI SUNRISE POWER TECHNOLOGY CO LTD
Shanghai Hongqiao Business District Energy Service Co ltd
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SHANGHAI ELECTRIC POWER INDUSTRIAL CO LTD
Shanghai Hongqiao Business District New Energy Investment Development Co ltd
SHANGHAI SUNRISE POWER TECHNOLOGY CO LTD
Shanghai Hongqiao Business District Energy Service Co ltd
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Abstract

A regional triple co-generation increment optimization control method relates to the technical field of energy utilization and solves the technical problem that existing systems are slow in increment response. The method comprises the steps of firstly calculating the optimized starting coefficient of each energy supply device, then judging the optimized starting coefficient of each energy supply device, finding all the devices to be optimized, calculating the conversion efficiency increment of each device to be optimized, finding out the optimized control target device according to the conversion efficiency increment of each device to be optimized, and then optimizing the energy supply output of the optimized control target device. The method provided by the invention is suitable for a combined cooling, heating and power system.

Description

Regional triple co-generation increment optimization control method
Technical Field
The invention relates to an energy utilization technology, in particular to a technology of a regional triple co-generation increment optimization control method.
Background
In a power plant power system using natural gas and oil as fuels, the power plant can recover the discharged waste heat for cooling or heating while generating power. The combined cooling, heating and power system has high energy utilization efficiency, can select the best energy production equipment and adjust the running state of the equipment according to the energy conversion efficiency COP of the equipment, and has high economic significance. However, when the load demand changes, the existing combined cooling and heating system has the defect of delayed incremental response, and is difficult to meet the normal working condition of the load.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a region triple co-generation increment optimization control method with quick increment response.
In order to solve the technical problem, the invention provides an area triple co-generation increment optimization control method, which relates to energy supply equipment adopting liquid as a heat exchange medium in an area triple co-generation system, and is characterized by comprising the following specific steps of:
1) calculating the optimized starting coefficient of each energy supply device, wherein the specific calculation formula is as follows:
ki＝(|Ti1-Ti10|+|Ti2-Ti20|)/(Ti10+Ti20)
wherein k isiOptimized starting coefficient, T, for the ith energy supply device in a regional cogeneration systemi1Real-time return water temperature T of ith energy supply equipment in regional triple co-generation systemi2Real-time inlet water temperature T of ith energy supply equipment in regional triple co-generation systemi10Standard Return Water temperature, T, for the ith energy supply device in a regional Tri-generation Systemi20The standard inlet water temperature of the ith energy supply equipment in the regional triple co-generation system;
2) detecting an optimized starting coefficient of each energy supply device in the area triple co-generation system;
if the energy supply equipment with the optimized starting coefficient larger than 0.05 is not found, turning to the step 1), otherwise, defining each energy supply equipment with the optimized starting coefficient larger than 0.05 as the equipment to be optimized, and turning to the step 3);
3) calculating the conversion efficiency increment of each device to be optimized, wherein the specific calculation formula is as follows:
Figure BDA0001295707220000021
gi＝(Wi-0.8*Wi0)2/Wi0 2+0.1×Ad(i)
gj＝(Wj-0.8*Wj0)2/Wj0 2+0.1×Ad(j)
wherein, is(i)Increment of conversion efficiency for the ith device to be optimized, giFor the fatigue coefficient of the ith device to be optimized, gjFatigue coefficient, Δ W, for the jth energy supply device in a regional cogeneration systemiFor the load variation of the ith device to be optimized, WiFor the current energy supply, W, of the ith device to be optimizedjSupplying current energy supply Cop of jth energy supply equipment in the regional triple supply system(i)For the ith equipment to be optimized, the energy supply is WiEnergy conversion efficiency of time, Cop(j)Supplying energy W to the jth energy supply equipment in the regional triple supply systemjThe energy conversion efficiency of the time, N is the number of energy supply equipment in the regional triple co-generation system, Wi0Rated supply energy, W, for the ith device to be optimizedj0Rated energy supply of the jth energy supply equipment in the regional triple power supply system, Ad (i) the day-time optimized times of the ith equipment to be optimized, and Ad (j) the day-time optimized times of the jth energy supply equipment in the regional triple power supply system;
4) finding out the equipment to be optimized with the minimum conversion efficiency increment, and optimizing the energy supply output of the equipment to be optimized under the condition that the energy supply output of the equipment to be optimized is not out of limit, so that the energy supply output is increased by delta W, the optimization times is increased by 1, and the delta W is the load variation of the equipment to be optimized.
According to the area triple co-generation increment optimization control method provided by the invention, the conversion efficiency increment of each energy supply device is calculated according to the related information of each energy supply device, and the target device for optimization control is found out according to the conversion efficiency increment of each energy supply device, so that the load demand can be quickly responded, and the method has the characteristic of quick increment response.
Drawings
Fig. 1 is a flowchart of a method for area triplet supply incremental optimization control according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the following description of the drawings, but the embodiments are not intended to limit the present invention, and all similar structures and similar variations using the present invention shall be included in the scope of the present invention, and the pause numbers in the present invention shall have a relation of the same.
As shown in fig. 1, an area triple co-generation increment optimization control method provided by an embodiment of the present invention relates to an energy supply device in an area triple co-generation system, which uses liquid as a heat exchange medium, and is characterized by comprising the following specific steps:
1) calculating the optimized starting coefficient of each energy supply device, wherein the specific calculation formula is as follows:
ki＝(|Ti1-Ti10|+|Ti2-Ti20|)/(Ti10+Ti20)
wherein ki is the optimized starting coefficient of the ith energy supply equipment in the regional triple co-generation system, Ti1Real-time return water temperature T of ith energy supply equipment in regional triple co-generation systemi2Real-time inlet water temperature T of ith energy supply equipment in regional triple co-generation systemi10Standard Return Water temperature, T, for the ith energy supply device in a regional Tri-generation Systemi20The standard inlet water temperature of the ith energy supply equipment in the regional triple co-generation system;
2) detecting an optimized starting coefficient of each energy supply device in the area triple co-generation system;
if the energy supply equipment with the optimized starting coefficient larger than 0.05 is not found, turning to the step 1), otherwise, defining each energy supply equipment with the optimized starting coefficient larger than 0.05 as the equipment to be optimized, and turning to the step 3);
3) calculating the conversion efficiency increment of each device to be optimized, wherein the specific calculation formula is as follows:
Figure BDA0001295707220000041
gi＝(Wi-0.8*Wi0)2/Wi0 2+0.1×Ad(i)
gj＝(Wj-0.8*Wj0)2/Wj0 2+0.1×Ad(j)
wherein, is(i)Increment of conversion efficiency for the ith device to be optimized, giFor the fatigue coefficient of the ith device to be optimized, gjFatigue coefficient, Δ W, for the jth energy supply device in a regional cogeneration systemiFor the load variation of the ith device to be optimized, WiFor the current energy supply, W, of the ith device to be optimizedjSupplying current energy supply Cop of jth energy supply equipment in the regional triple supply system(i)For the ith equipment to be optimized, the energy supply is WiEnergy conversion efficiency of time, Cop(j)Supplying energy W to the jth energy supply equipment in the regional triple supply systemjThe energy conversion efficiency of the time, N is the number of energy supply equipment in the regional triple co-generation system, Wi0Rated supply energy, W, for the ith device to be optimizedj0Rated energy supply of the jth energy supply equipment in the regional triple power supply system, Ad (i) the day-time optimized times of the ith equipment to be optimized, and Ad (j) the day-time optimized times of the jth energy supply equipment in the regional triple power supply system;
4) finding out the equipment to be optimized with the minimum conversion efficiency increment, and optimizing the energy supply output of the equipment to be optimized under the condition that the energy supply output of the equipment to be optimized is not out of limit, so that the energy supply output is increased by delta W, the optimization times is increased by 1, and the delta W is the load variation of the equipment to be optimized.
In the embodiment of the invention, the rated energy supply and the energy conversion efficiency of the energy supply equipment can be obtained by the conventional energy consumption management system.

Claims (1)

1. An area triple co-generation increment optimization control method relates to energy supply equipment which adopts liquid as a heat exchange medium in an area triple co-generation system, and is characterized by comprising the following specific steps of:
1) calculating the optimized starting coefficient of each energy supply device, wherein the specific calculation formula is as follows:
Figure DEST_PATH_IMAGE001
wherein the content of the first and second substances,
Figure 114611DEST_PATH_IMAGE002
for the third in the regional co-generation system
Figure DEST_PATH_IMAGE003
The optimized start-up factor of the individual energy supply devices,
Figure 131109DEST_PATH_IMAGE004
for the third in the regional co-generation system
Figure 35611DEST_PATH_IMAGE003
The real-time return water temperature of each energy supply device,
Figure DEST_PATH_IMAGE005
for the third in the regional co-generation system
Figure 72837DEST_PATH_IMAGE003
The real-time water inlet temperature of each energy supply device,
Figure 465553DEST_PATH_IMAGE006
for the third in the regional co-generation system
Figure 348058DEST_PATH_IMAGE003
The standard return water temperature of each energy supply device,
Figure DEST_PATH_IMAGE007
for the third in the regional co-generation system
Figure 638225DEST_PATH_IMAGE003
Standard inlet water temperature of each energy supply device;
2) detecting an optimized starting coefficient of each energy supply device in the area triple co-generation system;
if the energy supply equipment with the optimized starting coefficient larger than 0.05 is not found, turning to the step 1), otherwise, defining each energy supply equipment with the optimized starting coefficient larger than 0.05 as the equipment to be optimized, and turning to the step 3);
3) calculating the conversion efficiency increment of each device to be optimized, wherein the specific calculation formula is as follows:
Figure 518457DEST_PATH_IMAGE008
wherein the content of the first and second substances,
Figure DEST_PATH_IMAGE009
is as follows
Figure 159653DEST_PATH_IMAGE003
The incremental conversion efficiency of each device to be optimized,
Figure 485330DEST_PATH_IMAGE010
is as follows
Figure 754638DEST_PATH_IMAGE003
The fatigue coefficient of the individual devices to be optimized,
Figure DEST_PATH_IMAGE011
for the third in the regional co-generation system
Figure 743453DEST_PATH_IMAGE012
The fatigue coefficient of the individual energy supply devices,
Figure DEST_PATH_IMAGE013
is as follows
Figure 42585DEST_PATH_IMAGE003
Stand for excellenceThe amount of change in the load of the chemical plant,
Figure 673418DEST_PATH_IMAGE014
is as follows
Figure 266073DEST_PATH_IMAGE003
The current energy supply of the individual devices to be optimized,
Figure DEST_PATH_IMAGE015
for the third in the regional co-generation system
Figure 550424DEST_PATH_IMAGE012
The current energy supply of the individual energy supply devices,
Figure 41580DEST_PATH_IMAGE016
is as follows
Figure 505797DEST_PATH_IMAGE003
The equipment to be optimized is supplied with energy
Figure 687379DEST_PATH_IMAGE014
The efficiency of the energy conversion during the operation,
Figure DEST_PATH_IMAGE017
for the third in the regional co-generation system
Figure 814735DEST_PATH_IMAGE012
The energy supply equipment supplies energy to
Figure 917821DEST_PATH_IMAGE015
The energy conversion efficiency is high, N is the number of energy supply equipment in the regional triple co-generation system,
Figure 483931DEST_PATH_IMAGE018
is as follows
Figure 457703DEST_PATH_IMAGE003
The nominal supply energy of the individual devices to be optimized,
Figure DEST_PATH_IMAGE019
for the third in the regional co-generation system
Figure 803232DEST_PATH_IMAGE012
The nominal supply energy of the individual energy supply devices,
Figure 455931DEST_PATH_IMAGE020
is as follows
Figure 825732DEST_PATH_IMAGE003
The number of times of day optimization of each device to be optimized,
Figure DEST_PATH_IMAGE021
for the third in the regional co-generation system
Figure 326115DEST_PATH_IMAGE012
The optimization times of the energy supply equipment in the same day;
4) finding out the equipment to be optimized with the minimum increment of conversion efficiency, and optimizing the energy supply output of the equipment to be optimized under the condition that the energy supply output of the equipment to be optimized is not out of limit so as to increase the energy supply output
Figure 123169DEST_PATH_IMAGE022
And the optimization times are increased by 1,
Figure 669688DEST_PATH_IMAGE022
the load variation of the equipment to be optimized.
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CN105119325A (en) * 2015-10-16 2015-12-02 北京四方继保自动化股份有限公司 Small hydropower station and triple co-generation cooperative control system and control method for active distribution network
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