ABSTRACT
Most studies, at present, are focused on these two technologies; however, the scope of microhydropower generation (MHPG) and small hydropower is high, provided a suitable technology is being implemented. In this chapter, two types of controls have been implemented in the proposed VMHPG system. First, a fuzzy PI-based PWM AC–DC–AC converter is used to convert the generated variable AC output to DC output, which is further converted to controlled AC output and thereby maintaining frequency constant. A two-level IGBT-based VSC converter with a DC-link capacitor is used to obtain constant frequency and voltage output. Second, a fuzzy PI-based D-STATCOM is connected in the load terminal to regulate the voltage fluctuations due to non-linear and unbalanced loadings. D-STATCOM is powerful in eliminating harmonics, which otherwise will affect connected loads and cause heating of generator windings.
