Control Loop Design for Grid-Tied Inverters: PI, PR Controllers and PLL Synchronization
Practical guide to PI, PR, and repetitive controllers for grid-tied inverters, plus SOGI-PLL and DDSRF-PLL synchronization techniques.
Grid-Tied Inverter Topology Selection Guide: 2-Level, 3-Level NPC, T-Type, and Multilevel Compared
Side-by-side comparison of grid-tied inverter topologies covering efficiency, cost, THD, EMI, and scalability for 1kW to 1MW systems.
Bidirectional DC-DC Converter Design for Battery Energy Storage: Topologies, Control, and Efficiency
Comprehensive guide to bidirectional DC-DC topologies including interleaved buck-boost, dual active bridge, and CLLC resonant converters for BESS applications.
Advanced MPPT Algorithm Design for Solar Inverters: From Perturb & Observe to Global Peak Tracking
Deep dive into MPPT algorithms for solar inverters: P&O, incremental conductance, adaptive step-size, and global peak tracking under partial shading conditions.
Case Study: Multi-Topology SMPS Design Collection — Flyback, LLC Resonant, and Active Clamp Forward Converters
Comparative deep dive into three essential isolated DC-DC converter topologies — UC3842 Flyback, L6599 LLC Resonant, and Active Clamp Forward — covering design methodology, component selection, and performance trade-offs from 10W to 500W.
Case Study: 750W Grid-Tied Full-Bridge Inverter on STM32F103 — Unipolar SPWM with Plug-in Repetitive Control
A production-derived 750W single-phase grid-tied inverter on STM32F103C8T6 featuring unipolar SPWM at 32kHz, DQ-frame current control, software PLL, and 4-channel plug-in repetitive control for harmonic suppression.
Case Study: Y068 30kW Bidirectional Storage Inverter — A Deep Dive into DSP-Controlled Three-Level PCS Design
Deep-dive analysis of a production-grade 30kW Power Conversion System featuring T-type three-level inverter, 4-channel interleaved bidirectional DC/DC, TI TMS320F2833x DSP, and California Rule 21 compliance.
P&O MPPT Algorithm: From Theory to DSP Implementation
P&O MPPT Algorithm: From Theory to DSP Implementation Maximum Power Point Tracking (MPPT) is the algorithmic heart of any photovoltaic or DC-source energy harvesting system. Among the family of MPPT algorithms, the Perturb & Observe (P&O) method remains the most…
Bidirectional DC-DC Converter Control for Energy Storage Systems
Bidirectional DC-DC Converter Control for Energy Storage Systems Bidirectional DC-DC converters form the critical interface between the battery bank and the DC bus in energy storage Power Conversion Systems (PCS). This article examines a production-grade four-phase interleaved bidirectional DC-DC controller…
Three-Level NPC Inverter SVM Implementation on DSP28335
Three-Level NPC Inverter SVM Implementation on DSP28335 The three-level Neutral-Point-Clamped (NPC) inverter has become the topology of choice for medium-voltage and high-power energy storage applications, offering lower device voltage stress and reduced output harmonic content compared to two-level topologies. This…