Isolated Wind–Hydro Hybrid System Using Cage Generators and Battery Storage
Isolated Wind–Hydro Hybrid System Using Cage Generators and Battery Storage
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DOI：
10.1109/tie.2009.2037646
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发表时间：
2011-04
影响因子：
7.7
通讯作者：
P. Goel;Bhim Singh;S. Murthy;N. Kishore
中科院分区：
文献类型：
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作者：
P. Goel;Bhim Singh;S. Murthy;N. Kishore
提出了一种新型的隔离式风力-水力混合发电系统，该系统采用一台由变速风力涡轮机驱动的鼠笼式异步发电机和一台由恒功率水力涡轮机驱动的鼠笼式异步发电机，并向三相四线制本地负载供电。该系统采用两个背靠背连接的脉宽调制控制的绝缘栅双极晶体管为基础的电压源转换器（VSC）与电池的能量存储系统在其直流链路。VSC的控制算法的主要目标是通过风力涡轮机驱动的SCIG在不同风速下的转子速度控制和负载电压的幅值和频率的控制来实现最大功率跟踪（MPT）。提出的风-水混合系统具有双向有功和无功功率流的能力，通过它控制负载电压的大小和频率。建议的机电系统，使用SCIGs，MPT控制器，电压和频率控制器进行建模和仿真，在MATLAB中使用Simulink和Sim电力系统集工具箱，和不同方面的建议系统进行了研究，为各种类型的线性，非线性和动态负载，并在不同的风速条件下。所提出的系统的性能，以证明其能力的MPT，电压和频率控制（VFC），谐波消除，负载平衡。
This paper deals with a new isolated wind-hydro hybrid generation system employing one squirrel-cage induction generator (SCIG) driven by a variable-speed wind turbine and another SCIG driven by a constant-power hydro turbine feeding three-phase four-wire local loads. The proposed system utilizes two back-to-back-connected pulsewidth modulationcontrolled insulated-gate-bipolar-transistor-based voltage-source converters (VSCs) with a battery energy storage system at their dc link. The main objectives of the control algorithm for the VSCs are to achieve maximum power tracking (MPT) through rotor speed control of a wind-turbine-driven SCIG under varying wind speeds and control of the magnitude and the frequency of the load voltage. The proposed wind-hydro hybrid system has a capability of bidirectional active- and reactive-power flow, by which it controls the magnitude and the frequency of the load voltage. The proposed electromechanical system using SCIGs, an MPT controller, and a voltage and frequency controller are modeled and simulated in MATLAB using Simulink and Sim Power System set toolboxes, and different aspects of the proposed system are studied for various types of linear, nonlinear, and dynamic loads, and under varying wind-speed conditions. The performance of the proposed system is presented to demonstrate its capability of MPT, voltage and frequency control (VFC), harmonic elimination, and load balancing.