Welcome to the Industrial Automation website!

NameDescriptionContent
HONG  KANG
E-mail  
Password  
  
Forgot password?
  Register
当前位置:

Is solar-thermal power generation reliable?

来源: | 作者:佚名 | 发布时间 :2023-12-06 | 312 次浏览: | Share:

The key technology lies in the production and manufacturing of the condenser, as well as two aspects of control, one is the automatic tracking control, so that the trough condenser is always aligned with the sun to ensure the maximum absorption of solar energy, according to statistics, the energy obtained by tracking is 37.7% higher than that of non-tracking. The other is the temperature and pressure control of the heat transfer liquid circuit.

The temperature of the trough system after concentrating light can reach about 400°C.

3, disc photothermal power generation system

The disk system is a point focus, and the solar receiver at the focal point collects high temperature heat energy, heats the working medium, drives the generator set, or places the solar Stirling power generation device directly at the focal point. This kind of system has the characteristics of long life, high efficiency, strong flexibility, can operate independently, and is very suitable for use as a small power supply in remote areas.

The general disk solar thermal power is 10.25kW, and the diameter of the condenser is 5.10 meters.

Small disc type photothermal power generation device

By comparing the three technical routes, the tower has the greatest development potential in large-scale power generation, but the initial unit investment is too large and it is difficult to reduce the cost, and there is a lack of practical experience in the operation of large-scale power generation equipment.

Trough system structure is relatively simple, the technology is relatively mature, the commercial operation experience is rich, is still the mainstream route of the current solar thermal power generation, but its small concentrating ratio, the system operating temperature is low, the core component vacuum tube technology is not mature, the surface of the heat absorption tube selective coating performance is not stable and other problems still exist.

The disc has the highest thermal efficiency, compact structure and easy installation, which is very suitable for distributed small-scale energy systems, but the key technology of Stirling heat engine is difficult, and it is still in the experimental demonstration stage.

Comparison of three technical Routes (2013)

(3) are the use of solar energy, photovoltaic power generation and solar thermal power generation what is the difference?

The principle of photovoltaic power generation is called "photovoltaic", that is, when the sun shines on the solar cell, the battery absorbs light energy, and the abnormal charge accumulation occurs at both ends of the battery, that is, the voltage is generated, the electrode is led out and connected to the load, and the current is generated.

Photovoltaic cell power generation principle and photovoltaic power station system diagram

Therefore, in addition to the source of the sun, photovoltaic power generation and solar thermal power generation are completely different things. But the two are often compared together to see who is stronger. Let's also compare today, first look at photovoltaic power generation, the main advantages are:

(1) basically not affected by the region, theoretically as long as the solar energy can be installed;

(2) No fossil energy consumption, no pollution, zero noise;

(3) The power generation process is simple, directly from light energy to electricity, there is no intermediate link;

(4) Occupy less land, if installed on the roof, the area is basically zero;

(5) Simple structure, easy to build, low maintenance cost.

Of course, the disadvantages of photovoltaic power generation are also obvious:

(1) Cloudy days, no power output at night;

(2) Because there is no intermediate link, the cost of energy storage is high, which limits the scale of access to the grid;

(3) At present, the efficiency is still relatively low compared with thermal power, and the photovoltaic conversion efficiency is less than 20%.

Looking at solar thermal power generation, its biggest advantage is that there is an intermediate link, because there is heat as an intermediate energy source, it has three major advantages:

(1) The cost of energy storage is greatly reduced, and the maturity of thermal energy storage technology is much higher than that of electric energy storage;

(2) The resulting high schedulability of power generation, which is very similar to a thermal power station, can adjust the power generation according to the load at any time, smooth output power;

(3) Because the output can be smooth, it has the possibility of being used as a power grid rotation backup and peak filling output, which can be equivalent to "fast thermal power unit + pumped storage unit".

But the disadvantages are also obvious:

(1) Regional is hard, photothermal power generation has high working temperature requirements, and requires direct light, so it is generally built in the desert;

(2) The cost is high, the cost of solar thermal power generation is more than double the cost of conventional energy power generation, the investment cost of the power station is 4 times that of photovoltaic, the solar flow density is low, the need for a large area of optical reflectors and expensive receiving devices to directly convert solar energy into heat energy, the process of investment costs accounted for about half of the entire power station investment, This is the biggest reason for the high cost of solar thermal power generation;

  • ABB 3HAC5498-1 High-Performance Control Module
  • ABB 3HAC5518-1 Industrial Control Module
  • ABB 3HAC5497-1 Industrial Control Module
  • ABB 3HAC7344-1 Mains line filter unit
  • ABB 3HAC7681-1 Process Interface Module
  • ABB 3HAC6428-1/04 high-performance control module
  • ABB 3HAC6157-1 Floppy sign/supply cable
  • ABB 3HAC10847-1 Ethernet on front,Harness
  • ABB 3HAC5566-1 Industrial Communication Bus Cable
  • ABB 3HAC9710-1 Heat exchanger unit
  • ABB IMFECI2 Industrial Control Module
  • ABB IMDS014 Digital Slave Output Module
  • ABB INIT03 Control Module
  • ABB 3HAC031683-004 Cable Teach Pendant 30m
  • ABB HAC319AEV1 High-Performance Control Module
  • ABB UFC092BE01 Binary input module
  • ABB DAPC100 3ASC25H203 Industrial Control Board
  • ABB 57160001-KX DSDO 131 Digital Output Unit
  • ABB 3HAC4776-1/1 Industrial Control Module
  • ABB DSTF610 terminal
  • ABB YB560100-EA S3 Industrial Control Module
  • ABB XO16N1-B20 XO16N1-C3.0 High-Performance Industrial Control Module
  • ABB TU804-1 Programmable Logic Controller (PLC) Module
  • ABB TU515 I/O terminal unit
  • ABB TK516 Connection Cable with Contacts
  • ABB SPCJ4D34-AA Industrial Ethernet I/O System Module
  • ABB SPAD346C Integrated Differential Relay
  • ABB 1SAM101904R0003 SK-11 Signal contact 1NO+1NC
  • ABB SE96920414 YPK112A Communication Module
  • ABB SC610 3BSE001552R1 Submodule Carrier
  • ABB SC513 PLC Analog Input Module
  • ABB SAFT110 Advanced Safety Termination Module
  • ABB RVC6-5A Control Module
  • ABB RB520 Linear Motion Controller Module
  • ABB R1.SW2/3 Industrial Control Module
  • ABB PU517 Controller Automation System
  • ABB PS130/6-75-P Industrial Control Module
  • ABB 3BSE008062R1 PM633 Processor Module
  • ABB L110-24-1 Industrial Control Module
  • ABB IMDSO14 Digital Slave Output Module
  • ABB DSU10 Control Module
  • ABB DSQC627 3HAC020466-001 Advanced Power Supply Module
  • ABB DSQC354 Industrial I/O Module
  • ABB DSQC352 High Performance Input/Output Module
  • ABB 37911-4-0338125 Control Module
  • ABB DSPC172 CPU Module
  • ABB DSBB175 Industrial PLC Expansion Module
  • ABB CR-M4LS Industrial Control Module
  • ABB CI626A 3BSE005029R1 Communication Interface Module
  • ABB BB510 (DC5256) Digital Control Module
  • ABB 61615-0-1200000 High-Precision Industrial Controller
  • ABB 3HNE 00313-1 TILLV.0317 Machine No. 64-25653
  • ABB 3HNA000512-001 Control Module
  • ABB 3HAC025466-001 Industrial Control Module
  • ABB 3HAB8101-8/08Y Industrial Control Module
  • ABB 3BHB003689 Multifunction Controller Module
  • ABB PXBHE65 206-00212 power module
  • ZUNKU 6203-2RS Deep Groove Ball Bearing
  • ZUNKU 6201-2RS Deep Groove Ball Bearing
  • ZYCOM IGLACS01281 Control Module
  • Zygo 8010-0105-02 ZMI-501 Displacement Measurement Interferometer
  • Zygo 1115-801-346 laser head cable
  • ZYGO HSSDC2 TO HSSDC2 CABLE 1115-800-055
  • ZYGO HSSDC TO HSSDC2 CABLE 1115-800-056
  • ZYGO ZMI 4104C Measurement Electronics Board
  • ZYGO ZMI-2002 8020-0211 Measurement Board
  • ZYGO 7702 8070-0102-35 Laser Head
  • ZYGO ZMI 7702 8070-0102-01X Laser Head
  • ZYGO ZMI-4004 4-Axis VME64x Measurement Board
  • ZYGO PC200 CS1115-801-346 Laser interferometer cable
  • ZYGO 8010-0105-01 ZMI Power Supply
  • ZYGO ZMI-2002 8020-0211-1-J Laser system measurement board card
  • ABB 35AE92 control card
  • ABB 200900-004 I/O Adapter PLC Board
  • Siemens 6ES7193-4CA40-0AA0 ET 200S Electronic Module
  • Siemens 6AV2124-2DC01-0AX0 Comfort Panel
  • Siemens 6ES7421-7DH00-0AB0 Digital Input Module
  • Siemens 6ES7350-2AH01-0AE0 Counter Module
  • Siemens 6ES7231-0HC22-0XA0 Analog Input Expansion Module
  • Siemens ET200SP 6ES7193-6PA00-0AA0 server module
  • Siemens 6ES7193-4JA00-0AA0 Terminal Module
  • Siemens 6AG1204-2BB10-4AA3 Ethernet Switch
  • SIEMENS 6GK1105-2AA10 SIMATIC NET series optical switching module (OSM ITP62)
  • Schneider Modicon Quantum 140CPU65260 Unity Processor
  • Schneider Modicon Quantum 140ACO02000 Analog Output Module
  • Schneider Modicon Quantum 140CPS11420 power module
  • Allen-Bradley 1747-CP3 SLC ™ Series of programming cables
  • Kollmorgen S33GNNA-RNNM-00 - Brushless Servo Motor
  • Kollmorgen 6sm56-s3000-g-s3-1325 - Servo Motor
  • Kollmorgen AKM52K-CCCN2-00 - Servo Motor
  • Kollmorgen PSR3-230/75-21-202 - Power Supply
  • Kollmorgen akm24d-anc2r-00 - Servo Motor
  • Kollmorgen AKM22E-ANCNR-00 - Servo Motor
  • Kollmorgen S60300-550 - Servo Drive
  • Kollmorgen B-204-B-21 - Servomotor
  • Kollmorgen AKM21E-BNBN1-00 - Servo Motor
  • Kollmorgen TT2953-1010-B - DC Servo Motor
  • Kollmorgen pa8500 - Servo Power Supply
  • Kollmorgen BDS4A-210J-0001-207C2 - Servo Drive
  • Kollmorgen TTRB1-4234-3064-AA - DC Servo Motor
  • Kollmorgen MH-827-A-43 - Servo Motor
  • Kollmorgen AKM24D-ACBNR-OO - Servo Motor
  • Kollmorgen 00-01207-002 - Servo Disk DC Motor
  • Kollmorgen AKM21C-ANBNAB-00 - Servo Motor
  • Kollmorgen PSR3-208/50-01-003 - Power Supply
  • Kollmorgen 6SM56-S3000 - Servo Motor
  • Kollmorgen DBL3H00130-B3M-000-S40 - Servo Motor
  • Kollmorgen 6SN37L-4000 - Servo Motor
  • Kollmorgen AKM65K-ACCNR-00 - Servo motor
  • Kollmorgen 6SM56-L3000-G - Servo Motor
  • Kollmorgen AKMH43H-CCCNRE5K - Servo Motor
  • Kollmorgen PSR4/52858300 - Power Supply
  • Kollmorgen KBM-79H03-E03 - Direct Drive Rotary Motor
  • Kollmorgen AKM33E-ANCNDA00 - Servo Motor
  • Kollmorgen U9M4/9FA4T/M23 - ServoDisc DC Motor
  • Kollmorgen AKM13C-ANCNR-00 - Servo Motor
  • Kollmorgen AKM43L-ACD2CA00 - Servo Motor
  • Kollmorgen AKM54K-CCCN2-00 - Servo Motor
  • Kollmorgen M-605-B-B1-B3 - Servo Motor
  • Kollmorgen AKD-P00606-NBAN-0000 - Rotary Drive
  • Kollmorgen 6SM-37M-6.000 - Servo Motor
  • Kollmorgen A.F.031.5 - Sercos Interface Board
  • Kollmorgen 918974 5054 - Servo PWM
  • Kollmorgen U12M4 - ServoDisc DC Motor
  • Kollmorgen AKD-B00606-NBAN-0000 - Servo Drive
  • Kollmorgen MV65WKS-CE310/22PB - Servo Drive
  • Kollmorgen 65WKS-CE310/22PB - Servo Drive
  • Kollmorgen EM10-27 - Module