为了抑制电流换相期间的浪涌电压，逆变器采用最佳相角控制。
The inverter uses opetimal phase angle control scheme to suppress the surge voltage during the commutation of current.
分析了系统的电路原理、幅值控制、相角控制及功率因数控制的实现方式。
It analyzes the circuit principle of the system, amplitude control method, phase control method and realization of the power factor control.
该方法将为建设基于全网相角测量的安全稳定监测与控制系统提供一项技术基础。
The method will provide a technical foundation for developing a safe and stable monitoring and control system based on the whole net phase angle measurement.
认为电力电子技术不仅可以在高压输电系统中用于提高稳定、控制电压、相角和潮流，也具备了快速控制大电网的能力。
It is also believed that power electronic technology is able to not only raise and stabilize the controlling voltage, phase Angle and tidal current, but also fast control big power supplying network.
通过直接调节四象限变流器控制电压的幅值和相角，达到稳定输出电压和输入功率因数的目的。
Stable output voltage and input power factor is available by direct adjustment of the amplitude and phase angles of the control voltage for 4qs converter.
给出了在希望的幅值和相角裕量下控制器参数的计算方法。
Parameters estimation method of controller based on the gain and phase margin is proposed.
调度员可实时观察到全网各节点间相角差的变化情况，并作出调度和稳定控制策略。
Dispatchers can timely observe the condition of difference in phasor Angle between national network joints, accordingly, some adjustments and stably control strategies are made.
本设计利用超前校正原理，最终满足对控制系统性能指标开环放大系数、相角裕量、截止角频率的要求。
This design is the use of leading correction principle, finally meet the performance index of a control system open loop gain, phase margin, angular frequency requirements.
该控制器以PM U得到的区域间电压相角差信号作为输入信号，能够直接有效地反映区域间低频振荡特性。
This controller's input signal is the voltage phase Angle difference between two areas obtained by PMU, which can effectively reflect the inter-area low frequency oscillation characteristics.
为充分发挥含PMU的广域量测系统（W AM S/PMU）在电力系统安全预警、保护与控制中的作用，研究了节点相角-电压空间上保证暂态稳定的动态安全域的边界性质。
To make full use of the WAMS/PMU in the security monitoring, protection and control of power system, PDSR in phase angle-voltage space was studied.
提出一类新型非线性控制器和二次优化控制系统大相角裕量设计法。
The large phase Angle allowance design method for a first class new type non - linear controller and second optimal control system is presented.
论述了相角测量装置的测量原理，以及实时相角测量装置和实时相角测量系统的构成，并展望了实时相角在集中监控、状态估计、FACTS、稳定控制等方面的应用。
Its measuring principle and structure are presented. The applications of real time phasor are prospected in centralized monitoring, state estimation, FACTS and stability control of power system.
最后分析证明了采用移相调压最优SPWM控制的逆变器，控制电路简单，在移相角较小时，波形质量较好。
The final analysis proved that a phase-shifting surge SPWM optimal control of the inverter, a simple control circuit, in the phase shift smaller, better quality waveform.
最后分析证明了采用移相调压最优SPWM控制的逆变器，控制电路简单，在移相角较小时，波形质量较好。
The final analysis proved that a phase-shifting surge SPWM optimal control of the inverter, a simple control circuit, in the phase shift smaller, better quality waveform.
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