Abstract
With the advent of the global energy crisis, the use of sustainable green energy has become more and more widespread and the utilization rate of photovoltaic industry in high-altitude desert areas is getting higher and higher. This article mainly studies the intelligent control system in desert area based on photovoltaic microgrid power supply. The system uses shielded twisted pair to transmit signals, and electrostatic interference and electromagnetic induction interference are effectively suppressed. After ensuring that the encoder feedback is correct and the motor movement direction is consistent with the command direction and the safety of the movement stroke, the PID parameters of the motor are tuned in PAMCturningpro. For the performance test of this system, the design and implementation of the test plan should be carried out according to the concurrent support target and response time target proposed in the performance analysis of the system. Concurrent users use the LoadRunner tool to create the customer test machine to simulate the concurrent access and operation of the system. In each iteration process, the test results are recorded in the same way as the benchmark test and finally the system can still achieve the expected performance when the actual concurrency reaches the limit of 5007. The results show that the intelligent control system in this paper has the advantages of low cost, convenient operation, perfect function, high precision, stable and reliable operation, etc. and has good practical value.
Highlights
With the advent of the global energy crisis, the use of sustainable green energy has become more and more widespread and the utilization rate of photovoltaic industry in high-altitude desert areas is getting higher and higher. is article mainly studies the intelligent control system in desert area based on photovoltaic microgrid power supply. e system uses shielded twisted pair to transmit signals, and electrostatic interference and electromagnetic induction interference are effectively suppressed
The test results are recorded in the same way as the benchmark test and the system can still achieve the expected performance when the actual concurrency reaches the limit of 5007. e results show that the intelligent control system in this paper has the advantages of low cost, convenient operation, perfect function, high precision, stable and reliable operation, etc. and has good practical value
For the large power grid, the microgrid will be a variety of renewable energy distributed generation which is not easy to control to form a schedulable system; for users, the microgrid can meet its diverse and high reliability power demand. erefore, this paper studies the control strategy of photovoltaic power supply system in microgrid, which has practical significance to promote the use efficiency of renewable energy and solve the problem of nonrenewable energy shortage
Summary
When the load in the microgrid changes, the main control source first automatically adjusts the output current according to the load change to make the output power increase or decrease; at the same time, it detects and calculates the change of its own power and adjusts the output value of other subordinate systems according to the available capacity of the existing generation unit to make their output power change; when the output power of other slave systems increases, the output of the master control source decreases so that the master control source always has enough capacity to adjust the change of instantaneous power [14, 15]. As the output power of photovoltaic power generation and wind power generation fluctuates with the changes of light intensity, temperature, wind speed, and other factors, it is impossible to control its maximum power output, so this kind of power supply is uncontrollable. In moment distance or low baud rate wave data transmission, terminal matching resistance is not required; that is, generally below 300 meters, 19200 bps does not need terminal matching resistance. e terminal matching resistor is installed at the two end points of the RS485 transmission network and connected in parallel between the AB pins [22]
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