Distributed Module Design Of Measurement And Control Of Solar Genetic

This paper mainly discusses the software and hardware design of the distributed moduleof the concentrated solar power system. The module design based on CAN buscommunication can achieve collect, analysis, process and upload all kinds of the informationthermal power generation system real-time, and according to the control information from themaster machine of monitoring center drives the actuator of the scene. The module isdistributed in the field, networking flexible, information transmission reliability, wiringsimple, which is convenience for the distributed data acquisition. After long-term operationshows the module satisfy the needs of the real time monitoring system.The distributed measurement and control module design combines the high precisiondata acquisition technology and the advanced CAN bus technology to realize the multichanneldistributed high precision data acquisition, monitoring, and management. Correct dataacquisition, accurate converting and reliable data transmission to ensure that the entire solarsystem can precisely and stable running. In the solar power generation system, independentmanagement of all sorts of equipment makes the system run more stable and more intelligent.In this paper, design of distributed in the field of the equipment management module cancontrol the equipment independently; also can form a new module with other modulesachieves a higher level management.This paper mainly work includes: A,8-channel digital parameters acquisition; B, usingthe high-performance, low-power and high-speed16-bit ADC chip AD7705to achieve the8-channel analogue parameters acquisition; C, using two12bit4-channel digital-analogconverter chip MAX525complete8-channel analogue parameters output, which regulateanalog quantities such as temperature, angle etc; D,8-channel digital parameters put to realizethe control of the field device. Using SPI serial communication between two microcomputersAT90CAN128extends the interface and storage capacity of the acquisition module whendesign the module. The data acquisition module distributed in the field collects theinformation and do simple processing, then upload to the PC, PC analyze and storage the data,and sends the information to the monitoring center, at the same time sends adjustment order tothe control machine of the field, control machine accepts and converts the information intoacceptable signal to control the equipment.When complete the hardware design of this system, continue design the software andproduction of circuit boards and the commissioning of the entire system. As the design of thismodule system include a plurality of small modules, so the small module debugging wasseparately carried on firstly, and then put all modules include A/D conversion, digitalacquisition, D/A conversion, digital output and serial communications together with debugging. The result view that basically realization of the multichannel data signalsacquisition, data processing, data storage, display and data upload function.With the actual operation of this system show that the system not only meets the needingof real-time data acquisition, analysis, processing and uploading on the concentrating solarpower system, but also improve the ability of respond to emergencies through using twomicrocomputer AT90CAN128expand the data storage capacity. In addition, the system inharsh environments has a good jamming ability, can operate stably and reliably and meet thedesign requirements, and thus prove its feasibility and practicality.