• 对在河北南网区内实施电力需求侧管理的方案进行了研究。

    And then the applying DSM for southern Hebei power network is studied.

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  • 网侧绕组和阀侧绕组的电磁线采用H级聚酰亚胺漆包铜扁线,以提高绝缘可靠 性。

    The electromagnetic wires of the line side winding and the valve side windings adopt H-grade polyimide enamel covered flat wires so as to improve the insulating reliability.

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  • 采用型钢焊接的框架结构,两侧有安全护网,带支撑挂耳固定在链条上。

    Frame is sectional steel design with two lateral safety grids. Supporting angles are fixed on bush roller chains.

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  • 在稳态条件下,分析了电压型PWM整流器四象限运行工作原理,得出关键在于网侧电流控制的结论。

    Under steady state, the four-quadrant working principle of PWM rectifier has been explained here, the key for which has been found to be ac-side current control.

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  • 方法对19例胸腰段椎体爆裂骨折侧前路减压及髂骨、肋骨、钛网植骨加z - plate、Kaneda内固定系统重建脊柱稳定的临床资料进行总结。

    Methods 19 cases with thoracolumbar burst fracture were treated by anterolateral decompression, intervertebral bone grafting with ilium costa titanium mesh, and fixation with Z-PLATE or KANEDA system.

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  • 建立厂网分开、竞价上网的发电侧电力市场是中国电力市场商业化运营的第一步。

    Building up the power market on power generation side through separate power plants from power network and price competition is the first step for China power market commercial operation.

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  • 探讨了当热水供暖系统用户侧流量随意调节后一次网流量的调控问题。

    Discusses the problem about the water flow control of primary pipe network when consumers randomly regulate water flow.

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  • 文化中心相邻建筑间还有许多空间,通过两侧植物墙和陶瓷砖网的限定,可以用作公共广场。

    The Center has some space between the adjacent building allowing the creation of a public square flanked by the green wall on one side and ceramic mesh on the other.

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  • 提出一种电网电压不对称情况下抑制三相脉宽调制(PWM)电流型变流器(CSC)直流输出电流二次谐波、减少网侧电流低次谐波的控制方法。

    This paper presents a new control strategy to eliminate second harmonic of dc output current in the 3-phase unbalanced network voltage PWM current-source converters (CSC).

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  • 在软交换网络体系中,IP中继媒体网关完成电路交换网侧与IP分组网络侧媒体流的转换,同信令网关一起完成电路交换网与IP网络的互通。

    Trunking Media Gateway transmits media stream between IP and circuit switching networks, implements interworking of IP and circuit switching networks with signaling gateway in Softswitch network.

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  • 同时,设计并实现了一种新型的技术解决方案,分别采用FPGA技术和嵌入式系统完成PSTN侧和以太网侧的网络通信功能。

    Furthermore, a novel technique solution is designed and implemented, deploying FPGA and embedded system, to achieve network communication between PSTN with Ethernet.

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  • 在目前厂网分开、逐步建立发电侧竞争性电力市场的背景下,进行盈亏平衡分析很有必要。

    In the background of separation of power plants from the power grids and establishment of power market it is necessary to implement the profit and loss balance analysis.

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  • 在分析了该系统控制方法的基础上,建立了交直交变频器网侧电压定向以及转子侧定子磁场定向的矢量控制系统模型。

    Based on the analysis of control strategy of the system, this paper used respectively voltage oriented and stator flux oriented vector control in grid side and rotor side of the converter.

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  • 根据轻型直流输电系统要求及本文的设计方案,研究了机组侧和网侧的大功率VSC的特性。

    According to VSC-HVDC system requirements and the design scheme, the characteristics of the high-power VSCs of wind farm side and grid side are studied.

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  • 基于双向变流器技术的蓄电池充放电装置具有充电和放电功能,同时实现了网侧电流正弦化及单位功率因数,因而减少了对电网的谐波和无功污染。

    The device for battery charge or discharge based on the technology of bidirectional converter can be used in charging or discharging battery, and realize sine wave of ac and unity power factor.

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  • 本论文来源于1.5MW风电变流器的研制项目,主要研究内容是网侧数字化并网逆变器的开发。

    This paper comes from a project of developing 1.5mw wind power converter the major content of which is developing digital inverter in grid-side.

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  • PWM整流器可实现正弦的网侧电流、单位或可调的功率因数、能量的双向流动,是一种真正意义上的“绿色环保”电力电子装置。

    The PWM rectifier is a "green" power electronics equipment since it offers sinusoidal input currents, unity or adjustable power factor, reversal of power flow.

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  • 仿真结果表明,电机转速比是影响交交变频轧机系统网侧基波功率因数与电流总畸变率的关键原因。

    The simulation results show that the speed ratio of the motor mostly affects the total harmonic distortion of the current and the displacement power factor.

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  • 有限阻抗型混合有源电力滤波器中应用电压谐波前馈控制,能加强对网侧电压的谐波抑制。

    Applying feedforward control of harmonic voltage to hybrid active power filter of finite harmonic impedance can restrain line harmonic voltage.

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  • 实验表明,作为双馈感应发电机转子励磁电源的三相pwm变换器具有功率因数高、网侧电流谐波小、能量双向流等优点。

    Experimental results show that three-phase PWM converters are advantageous in high power factor, small input-line current harmonic distortion and bi-directional power flow.

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  • 为了解决上述问题,本文采用了抑制网侧负序电流分量的控制方案,仿真结果表明采用该方案后输出电流波形满足了正弦化及平衡化的要求。

    In this paper, a control system with restraining negative sequence current is adopted simulation results of which demonstrate that output current waveform can meet sinusoidal and balanced demand.

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  • 本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型,设计了LCL滤波器的参数。

    Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.

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  • 本文建立了采用LCL滤波器的网侧变换器的拓扑结构和数学模型,设计了LCL滤波器的参数。

    Using LCL-filter can resolve these problems. The topology and mathematical model of grid-side converter based LCL filter are established, the parameters of LCL-filter are designed.

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