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    • 1. 发明申请
    • NON-INVERTER BASED DISTRIBUTED ENERGY RESOURCE FOR USE IN A DYNAMIC DISTRIBUTION SYSTEM
    • 基于非逆变器的分布式能源资源用于动态分配系统
    • US20080215187A1
    • 2008-09-04
    • US11681014
    • 2007-03-01
    • Robert H. LasseterShashank Krishmanurthy
    • Robert H. LasseterShashank Krishmanurthy
    • G05D7/06G05D13/46
    • H02P9/04H02P2101/15
    • A microsource is provided, which includes a generator, a prime mover, and a controller. The prime mover includes a shaft connected to drive the generator to generate power at a frequency controlled by a rotation rate of the shaft. The controller calculates an operating frequency for the generator based on a comparison between a power set point and a measured power flow. A requested shaft speed for the prime mover is calculated by combining a maximum frequency change, a minimum frequency change, and the calculated operating frequency A shaft speed adjustment is calculated for the prime mover based on a comparison between the requested shaft speed and a measured shaft speed of the prime mover. A fuel command for the prime mover is calculated based on the shaft speed adjustment. A rotation rate of the shaft of the prime mover is adjusted based on the calculated fuel command to control the frequency.
    • 提供了一个微源,它包括发电机,原动机和控制器。 原动机包括连接以驱动发电机以以由轴的转速控制的频率发电的轴。 控制器基于功率设定点和测量功率流之间的比较来计算发电机的工作频率。 通过组合最大频率变化,最小频率变化和计算的运行频率来计算原动机的要求轴速度。基于所请求的轴速度和测量轴之间的比较,为原动机计算轴速调整 原动机的速度。 基于轴速度调整计算原动机的燃料指令。 基于所计算的燃料指令来调整原动机的轴的旋转速度以控制频率。
    • 2. 发明授权
    • Hydraulic speed governor
    • 液压调速器
    • US4121609A
    • 1978-10-24
    • US393639
    • 1973-08-31
    • Harold Gold
    • Harold Gold
    • G05D13/46F16K11/00
    • G05D13/46Y10T137/2615Y10T137/87233Y10T137/87241
    • Flow from a pressure source is bidirectionally conducted to a prime-mover driven, bidirectional, positive displacement pump and in-series flow restrictions; the pressure source and flow restrictions functioning to provide the reference flow rate; the pressure gradient across said pump bidirectionally signalling the error in prime-mover speed. Means responsive to said pressure gradient provide proportional plus integral control of the prime-mover speed. The reference flow rate is controlled by a four-way valve. Load compensation of the four-way valve is provided to obtain high error signals.
    • 来自压力源的流量双向进行到原动机驱动,双向,容积式泵和串联流量限制; 压力源和流量限制功能用于提供参考流量; 所述泵上的压力梯度双向地表示原动机速度的误差。 响应于所述压力梯度的装置提供了原动机速度的比例积分控制。 参考流量由四通阀控制。 提供四通阀的负载补偿以获得高误差信号。