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Introduction
Published in Randall L. Eubank, Ana Kupresanin, Statistical Computing in C++ and R, 2011
Randall L. Eubank, Ana Kupresanin
Much of the code development in this chapter illustrates how to build ADT implementations from the ground up. The resulting structures are simplistic in nature and of conceptual, rather than practical, utility. Instead, there are excellent packages of existing code that can be used for applications that require ADTs and these will be the preferred option for most users. For C++ programmers, the first resort should be the Standard Template Library (STL) which provides implementations of basic data structures that include queues, priority queues, stacks and dictionaries. A much more comprehensive, yet nevertheless free, collection of C++ libraries is provided by BOOST. In Chapter 10, we examine some of the basic features of the STL.
A fuzzy sliding mode controller for power quality improvement of solar PV interleaved parallel inverters in a micro-grid
Published in International Journal of Ambient Energy, 2022
Sivaranjani Srinivasan, Ezhilarasi Arivukkannu, Ramaswamy Muthiah
The parallel boost inverter consists of n bidirectional units with their outputs connected in parallel as shown in Figure 3. It comprises of the input dc voltage Vin, the inductances L11, L12 … L1n and L21, L22 … L2n together with the series connected semiconductor switches S11, S12 … S1n, S21, S22 … S2n, S31, S32 … S3n and S41, S42 … S4n. The capacitors C11, C12 … C1n and C21, C22 … C2n remain connected across each boost inverter, whose output voltage creates 180 degrees out of phase with each other and R forms the load resistance respectively.
Impact of variable negative solar resistance: modified virtual feed forwarded with feedback emulated inertia controller
Published in International Journal of Ambient Energy, 2022
Figure 1(c) is PV array attached with Boost Converter consists of a photovoltaic array, a Cpv and Co input and output capacitor of a boost converter. The control structure is shown in Figure 1(c), where D is the IGBT duty cycle, I*Lpv represents the reference current and V*pv is the reference PV voltage. The internal inductor current controller is controlled by the PI controller coefficients Ki and Kp to retain the input voltage. The equation associated with the boost converter is given by (5) where, Icpv, Ipv and ILpv represent as virtual capacitor current, input PV current and input current of the boost converter. The PVBC voltage and current loop equation can be obtained from the equation, where D is the duty cycle of the boost converter.
Solar supplied two-output DC–DC converters in the application of low power
Published in Automatika, 2021
The outputs obtained from Zeta-Buck Boost converter is separately displayed in Figure 9(b,c). Figure 9(b) gives the output of Zeta converter and Figure 9(c) shows the outputs of the Buck-Boost converter. VO1, IO1 and PO1 represent the voltage, current and power obtained from the Zeta converter and VO2, IO2 and PO2 represents the voltage, current and power obtained from the Buck-Boost converter. In both the waveforms, the CH1, CH2 and CH3 denotes the output voltage (VO1 and VO2), output current (IO1 and IO2) and output power (PO1 and PO2). The VO1 and VO2 of the Zeta and Buck-Boost converters are DC bipolar of value 25 V. The total power delivered from the converter is 8.5965 W. The total losses in this converter are less compared to the APO implemented Zeta-Buck Boost converter. Therefore efficiency is improved by 5%.