Here's a summary or few documents (pdf's) that may have some relevant info in them for consideration.
Its pretty much over my head on many levels, and hope i'm not perturbing anyone from reading, with too many links..
[hr]
Dynamic Response Analysis of Small Wind Energy Conversion Systems (WECS)
Operating With Torque Control versus Speed Control
http://www.icrepq.com/ICREPQ'09/378-gonzalez.pdf
Abstract: This paper encompasses the study of modelling and design of WECS, using a wind turbine with known dynamic characteristics and a permanent magnet synchronous generator with a back to back power converter topology. The dynamic modeling allows to know the response of the turbine generator system in the whole range of operation.
6.- Conclusion A control system for small wind turbines has been presented in this paper. The proposed control system has a variable structure depending on the operation region. In the MPPT region, a speed turbine control loop is used to follow the maximum available power point. In the nominal power region, a linear control is used to maintain the power close to a reference value in spite of high wind speeds. For this CP region, it has been shown that closing the power control loop by cascade compensation of the inner speed loop is preferred to use an inner torque control loop.
[hr]
Optimization of Perturb and Observe Maximum
Power Point Tracking Method
http://ecee.colorado.edu/~ecen4517/mate ... 6O2005.pdf
V. CONCLUSION
In this paper a theoretical analysis allowing the optimal
choice of the two main parameters characterizing the P&O algorithm
has been carried out. The idea underlying the proposed
optimization approach lies in the customization of the P&O
MPPT parameters to the dynamic behavior of the whole system
composed by the specific converter and PV array adopted. The
results obtained by means of such approach clearly show that
in the design of efficient MPPT regulators the easiness and
flexibility of P&O MPPT control technique can be exploited
by optimizing it according to the specific system’s dynamic
characteristics. As an example a boost converter has been
examined. The results obtained and the considerations drawn
can be extended to any other converter topology as well.
[hr]
Comparative Study of Maximum Power Point Tracking Algorithms
for Thermoelectric Generators
http://itee.uq.edu.au/~aupec/AUPEC%2020 ... s/p217.pdf
VII. CONCLUSION
This paper has compared the steady state performance of the P&O, INC and fractional ISC algorithms. The results show for the above TEG model and various fixed load resistances, the fractional ISC had the best steady state performance. Also unlike the P&O and INC, it required no extra error and/or tracking parameters to ensure correct operation, making it the easiest to develop. Due to the nature of the short circuit test, it is likely that the dynamic response of the fractional ISC is not as good as the P&O or INC. Due to the thermal mass of the TEG, the impact of this drawback should not be very significant, but further work is required to test for this.
[hr]
Low-Power Maximum Power Point Tracker
with Digital Control for Thermophotovoltaic Generators
http://www.google.com.au/url?sa=t&rct=j ... NnfGsqaGAA
V. CONCLUSION
We have demonstrated a power electronics architecture
suitable for TPV power generation. The proposed architecture
addresses challenges that are unique to the TPV application,
and enables a substantial increase in energy capture compared
to conventional methods. We incorporate low-power sensing
techniques and achieve high power conversion efficiency
and small size. A tracking efficiency above above 99% is
demonstrated. In addition, we have demonstrated a micro-TPV
system generating 150 mW with the MPPT converter. These
results pave the way towards a fully integrated, fully functional
micro-scale TPV power generator.
[hr]
Maximum Power Point Tracking methods for small scale
Wind Turbines
http://www.satnac.org.za/proceedings/20 ... 20Moor.pdf
Abstract
Power Point trackers for increased efficiency in the
power production of wind turbines are investigated.
The power point trackers are to be used for large scale
and small-scale systems. Two basic methods for
tracking are presented. The first method is
rudimentary load adjusting in sample steps. The
second method requires previous knowledge of the
parameters of the wind turbine to provide an optimal
look-up table. The loading of the wind turbines is
determined by these power point trackers and will be
implemented on a practical system by controlling the
rectification from the generator. Computer
simulations are performed on the proposed methods
and the results are presented in this paper. An
analogue model was also created and the preliminary
results are presented.
[hr]
A Novel Approach for Robust Maximum Power Point Tracking of PEM Fuel Cell Generator
Using Sliding Mode Control Approach
http://www.electrochemsci.org/papers/vol7/7054192.pdf
6. CONCLUSIONS
In this paper, a sliding mode based maximum power point tracking approach for PEM fuel cell
is presented and its characteristics, accuracy and performance is investigated via simulations. The analyses and simulations are performed on a system including of a PEMFC, boost DC/DC converter and a battery for both normal and time varying Fuel cell temperature and membrane water content operating conditions. Besides, the performance of the proposed method is compared with the P&O approach [10]. The results are indicative of the out performance of the proposed method. The main features of sliding mode MPPT method can be summarized as:
High accuracy or equivalently low steady state tracking error;
Fast response;
Simple control law, low complexity and implementation cost.
[hr]
vamoose
Bumpkin