I am working on a grid-connected wind turbine based on a PMSG, the referenced active power is adjusted to be 80% of the maximum available power to have a power reserve for the frequency support. The frequency error and its derivative are used to generate the increment/decrement in the active power reference during frequency disturbances (PLL is used to extract the grid frequency). To simulate the frequency disturbance, the programmable voltage source block in SIMULINK has been used to have a step decrease in the frequency of about 1 Hz. However, when comparing the frequency waveform with and without the frequency droop control it looks exactly the same. Different gains are attempted for the frequency droop are attempted but the output is the same. Any suggestion what might be the problem?
Dear Ahmed:
You can benefit from this valuable article about your topic:
"Estimating PMSG Wind Turbines by Inertia and Droop Control Schemes with Intelligent Fuzzy Controller in Indian Development"
@http://koreascience.or.kr/article/JAKO201424750260337.page
Abstract:
This paper presents an exploration on the effect of wind turbine contribution to the frequency control of individual systems that can be used for efficient power production in India. The research includes the study of Permanent Magnet Synchronous Generator (PMSG), in wind farms. The WTs are tested for inertia and for droop responses with intelligent fuzzy logic controllers (FLC) that choose Double Input Single Output (DISO) strategy that automatically sets gain constants, as well as combined responses for the WTs. Quantitative analyses are presented for the WTs for benefits and drawbacks including appropriate selection parameters. The analysis includes inertia, droop and combined inertia, droop schemes. The reconnaissance also incorporates inertia with FLC, droop with FLC, inertia and droop with FLC schemes for detailed study of WTs, so as to forecast and achieve proper frequency control. Moreover, the analysis provides the best suited method for frequency control in PMSG.
I hope it will be helpful ...
With my best regards...
The most probable error is that the active power reserve available is not sufficient to support a frequency deviation of 1Hz. Try decreasing the frequency deviation and checking the simulation.
- Badges
- Science topic
- Similar topics
- Engineering
- Modeling