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功率转换器共振控制器用于不平衡和非恒定的频率供应
Jaime Rohten1, Felipe Villarroel1, José Silva2
1Department of Electrical and Electronic Engineering, Universidad del Bío-Bío, Concepción 4030000, Chile.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
本研究介绍了一种共振控制算法,用于稳定电力转换器在经历电压扭曲,频率变化和不平衡条件的弱电网中. 这种新的方法确保了电网稳定,尽管电力供应动态具有挑战性.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 控制理论 控制理论
背景情况:
- 微电网和岛屿系统等弱电网容易受到电压扭曲的影响,包括失衡和频率变化.
- 负载变化加剧了这种情况,特别是大单相负载导致电压不平衡,高电流负载导致频率波动.
研究的目的:
- 为功率转换器提出一个共振控制算法,有效地管理电压幅度和频率变化的扭曲电源.
- 通过采用可变采样频率来解决共振控制中频率变化所带来的挑战.
- 通过调整不同阶段的功耗,在不平衡的电压条件下提高电网稳定性.
主要方法:
- 为扭曲的电源量身定制的共振控制算法的开发.
- 实施可变采样频率以适应电网频率变化而无需调节控制器.
- 一个策略来管理不平衡的电压,通过重新分配功率跨相.
主要成果:
- 拟议的共振控制算法有效地处理电压幅度和电网频率的变化.
- 可变采样频率成功克服了传统共振控制器的调限制.
- 该方法通过智能地管理电流,在电压不平衡条件下提高电网供应稳定性.
结论:
- 共振控制算法为电源转换器控制在电压扭曲的弱电网中提供了强大的解决方案.
- 适应性采样频率和相位功率再分配策略是保持稳定的关键.
- 该研究的结果通过数学分析,实验和模拟结果来验证.
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