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Series capacitors compensations may cause subsynchronous resonance (SSR) of steam turbine-generators. Using the principle which is depressed SSR by STATCOM and choosing appropriate measured data to design the subsynchronous damping control (SSDC) based on improved particle swarm optimization algorithm which is presented in this paper. Regard the controller parameter of STATCOM as adaptive parameter...
The conventional approach of parameters design for power system stabilizer (PSS), which aims at a special mode of low-frequency oscillations can not have the damping effect on wide range of low-frequency band. This paper presents a new approach to implement the parameters optimization of PSS controller. With genetic algorithm(GA), this approach can have better damping effect on all the main frequency...
The problem of damping control and Hopf bifurcation control is discussed. To guarantee the level of system damping and dynamic load margin together, a multi-objective optimization model is proposed in this paper. Not only the minimum damping torque is identified, but also the effect on Hopf bifurcations. According to Hopf bifurcation index, quasi- Hopf bifurcations is proposed to approximate Hopf...
This paper presents a novel practical approach for large-disturbance stability control. Firstly, the relation between large-disturbance stability region OmegaLDSR and small-signal stability region OmegaSSSR is investigated. Then, a method to approximately identify OmegaLDSR through shrinking the OmegaSSSR of the corresponding post-disturbance, is proposed in terms with several rational assumes. Finally,...
At the process control system, the measure signals from sensors are often applied into control system, protection system and state monitoring system. To a large extent, the property of shunt active power filter depend on the precision of the access of current instruction signal and the tolerance capacity of the current instruction signal .The shunt active power filter itself is a harmonic source if...
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