冰蓄冷装置参与能量互补的微网自律协同控制研究
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TM73

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浙江省重点研发计划资助项目(2019C01149)


Autonomous coordinated control for microgrids considering
multi-energy complementary with ice storage devices
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以智能运检为核心的变电站开关设备状态深度融合感知技术研究 Research on deep state fusion sensing technology of substation switchgear based on intelligent operation inspection

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    摘要:

    为增强含冰蓄冷装置的多能微网的运行灵活性和可靠性,高效接纳分布式发电单元和储能单元,文中从系统全局出发,提出一种自律协同控制策略,包含交、直流微网控制及互联装置控制。交、直流微网松弛单元外环采用有功功率-频率(P-f)下垂控制和有功功率-直流电压(P-V)下垂控制。交流微网互联装置包含互联功率控制、虚拟同步控制和电压瞬时值闭环控制;直流微网互联装置包含互联功率控制和移相控制。通过所提控制策略可实现:电能富足时,冰蓄冷、蓄电池等装置按照其额定容量自适应吸纳电能,合理承担储能能量;负荷高峰时,优先投入冰蓄冷装置,其余冷负荷等效电负荷以及电负荷使用其他储能装置并按照额定容量比合理承担。最后通过仿真验证该控制策略的有效性。文中从系统层面研究微网协同控制方法,为多能微网系统控制器设计提供新的思路。

    Abstract:

    In order to enhance the flexibility and reliability of multi-energy microgrids with ice storage systems,integrate with distributed generations and energy storage systems effectively,an autonomous cooperative control is proposed in this paper,which consists of control of alternating current (AC) and direct current (DC) microgrids and interlinking converters (ICs). Slack terminals in AC and DC microgrids adopt P-f and P-V droop control respectively. The control of the IC with AC microgrid consists of interlinking power control loop,virtual synchronous control and inner voltage control. The control of the IC with DC microgrid includes interlinking power control and phase shift control. With the proposed method,it is possible to achieve followings. When electric energy is abundant,ice storage,storage battery and other devices absorb electric energy adaptively according to their rated capacity and bear the energy storage energy reasonably. At peak load,the ice storage device is put into operation preferentially,and other energy storage devices is used for other cooling loads,equivalent electrical loads and electrical loads,which is reasonably borne according to the rated capacity ratio. The effectiveness of the proposed control is verified by simulation. It should be noted that the proposed method improves the stability and controllability of the whole system,which provides a novel idea for system-level controller design for multi-energy microgrid.

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唐明,李玉杰,王林杰,徐卓凌,蒋伟毅,陆水锦.冰蓄冷装置参与能量互补的微网自律协同控制研究[J].电力工程技术,2022,41(3):118-124,132

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历史
  • 收稿日期:2021-11-25
  • 最后修改日期:2022-02-13
  • 录用日期:2021-01-28
  • 在线发布日期: 2022-05-24
  • 出版日期: 2022-05-28