Applying flywheel energy storage system to integrated power system for power quality and stability enhancement
Applying flywheel energy storage system to integrated power system for power quality and stability enhancement
复制标题
将飞轮储能系统应用于综合电力系统，提高电能质量和稳定性
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Xie Zhen
中科院分区：
文献类型：
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作者：
Ji Feng;Gongbao Wang;F. Lijun;Wang Gang;Xie Zhen
综合电力系统（IPS）是一个用于发电、日常用电、电力推进、高能武器和大功率探测设备供电的一体化电气平台，代表了现代舰船电力系统的发展趋势。针对具有刚性、高阶、非线性、强耦合特性的感应电机易受系统瞬态影响的问题，提出了一种由感应电机、飞轮和双向变流器组成的飞轮储能系统。FES与IPS的直流母线并联。提出了基于磁场定向的空间矢量脉宽调制（SVPWM）控制策略，并在PSCAD/EMTDC中建立了含FES的简化直流IPS仿真模型，以检验FES的效率。模拟了发电机短时跳闸和突然加负荷的情况，研究了IPS在加恒功率负荷和故障时的静态稳定性和暂态稳定性。研究表明，该控制策略可使FES自动切换运行模式，调节直流母线电压，补偿发电机与负荷之间的功率不平衡。采用FES可以有效地抑制直流母线电压波动，提高电能质量和IPS的稳定性。
The integrated power system (IPS) is an integral electrical platform used for power generation, daily electricity demand, electric propulsion, power supply for high-energy weapons and high-power detecting devices, and represents the trend of developing modern vessel power systems. As the IPS with stiff, high-order, nonlinear, strong-coupling characteristics is vulnerable to the system transients, a flywheel energy storage (FES) system is introduced, which is composed of an induction machine, a flywheel and a bi-directional converter. The FES is connected to the DC bus of IPS in parallel. The control strategy based on the field oriented space vector pulse width modulation (SVPWM) is proposed and a simulative model of the simplified DC IPS containing FES is established in PSCAD/EMTDC in order to test the efficiency of the FES. A short-time trip to the generator and a sudden application of load are simulated, and the static stability and transient stability are studied by applying constant-power load and fault to IPS, respectively. The study shows that the FES can switch its operating modes automatically by this strategy to adjust the DC bus voltage and to compensate the power unbalance between generators and loads. Using FES, the DC bus fluctuation can be restrained and the power quality and the stability of the IPS can be improved effectively.