Ma Chao-Tsung, Zhou Feng-Wei
Applied Power Electronics Systems Research Group, Department of EE, CEECS, National United University, Miaoli City 36063, Taiwan.
Micromachines (Basel). 2023 Oct 20;14(10):1958. doi: 10.3390/mi14101958.
In recent years, the penetration of wind power generation has been growing steadily to adapt to the modern trend of boosting renewable energy (RE)-based power generation. However, the dynamic power flow of wind turbine generators (WTGs) is unpredictable and can have a negative impact on existing power grids. To solve this problem efficiently, this paper presents a multifunctional WTG intelligent compensator (WTGIC) for the advanced power management and compensation of power systems embedded with WTGs. The proposed WTGIC consists of a power semiconductor device (PSD)-based bidirectional three-phase inverter module and an energy storage unit (ESU). In order to reduce system costs and improve reliability, efficiency, and flexibility, various control functions and algorithms are integrated via a modularized all-digital control scheme. In this paper, the configuration of the proposed WTGIC is first introduced, and then the operating modes and related compensation and control functions are addressed. An online efficiency optimization algorithm is proposed, and the required controllers are designed and implemented. The designed functions of the proposed WTGIC include high-efficiency charging/discharging of the ESU, real-time power quality (PQ) compensation, and high-efficiency power smoothing of the WTGs. The feasibility and effectiveness of the proposed WTGIC are verified using case studies with simulations in the Powersim (PSIM) environment and the implementation of a small-scale hardware experimental system with TI's digital signal processor (DSP) TI28335 as the main controller.
近年来，风力发电的渗透率一直在稳步增长，以适应推动基于可再生能源（RE）发电的现代趋势。然而，风力发电机组（WTG）的动态功率流是不可预测的，并且会对现有电网产生负面影响。为了有效解决这一问题，本文提出了一种用于对嵌入WTG的电力系统进行先进功率管理和补偿的多功能WTG智能补偿器（WTGIC）。所提出的WTGIC由一个基于功率半导体器件（PSD）的双向三相逆变器模块和一个储能单元（ESU）组成。为了降低系统成本并提高可靠性、效率和灵活性，通过模块化全数字控制方案集成了各种控制功能和算法。本文首先介绍了所提出的WTGIC的配置，然后阐述了其运行模式以及相关的补偿和控制功能。提出了一种在线效率优化算法，并设计和实现了所需的控制器。所提出的WTGIC的设计功能包括ESU的高效充电/放电、实时电能质量（PQ）补偿以及WTG的高效功率平滑。通过在Powersim（PSIM）环境中进行仿真的案例研究以及以德州仪器（TI）的数字信号处理器（DSP）TI28335作为主控制器的小规模硬件实验系统的实现，验证了所提出的WTGIC的可行性和有效性。
