The analysis of communication architecture and control mode of wide area power systems control

Tong, Xiaoyang; Li, Guodong; Wang, Xiaoru; Shan, Zhang

doi:10.1109/isads.2005.1452018

Cited by 9 publications

(3 citation statements)

References 5 publications

(1 reference statement)

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“…To meet these strict requirements, scientists suggest using a dedicated, high-speed and high-bandwidth wirelane cables, e.g. 1 Gbps Ethernet [41]. Furthermore, it is proposed to use Wavelength Division Multiplexing (WDM) to increase the bandwidth and advanced protocols such as MultiProtocol Label Switching (MPLS) to reduce delays.…”

Section: Methodsmentioning

confidence: 99%

Improving power grid transient stability by plug-in electric vehicles

et al. 2014

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Plug-in electric vehicles (PEVs) can serve in discharge mode as distributed energy and power resources operating as vehicle-to-grid (V2G) devices and in charge mode as loads or grid-to-vehicle devices. It has been documented that PEVs serving as V2G systems can offer possible backup for renewable power sources, can provide reactive power support, active power regulation, load balancing, peak load shaving, can reduce utility operating costs and can generate revenue. Here we show that PEVs can even improve power grid transient stability, that is, stability when the power grid is subjected to large disturbances, including bus faults, generator and branch tripping, and sudden large load changes. A control strategy that regulates the power output of a fleet of PEVs based on the speed of generator turbines is proposed and tested on the New England 10-unit 39-bus power system. By regulating the power output of the PEVs we show that (1) speed and voltage fluctuations resulting from large disturbances can be significantly reduced up to five times, and (2) the critical clearing time can be extended by 20-40%. Overall, the PEVs control strategy makes the power grid more robust.

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Section: Methodsmentioning

confidence: 99%

Improving power grid transient stability by plug-in electric vehicles

et al. 2014

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“…15. Table 6 Wide Area Damping Controllers Reference Significance [83][84][85] Requirements for wide area control in terms of communication delay and data losses have been identified.…”

Section: Software Defined Networking For Pmusmentioning

confidence: 99%

A review on synchrophasor communication system: communication technologies, standards and applications

Appasani

Mohanta

2018

Prot Control Mod Power Syst

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The present-day power system is a complex network that caters to the demands of several applications with diverse energy requirements. Such a complex network is susceptible to faults caused due to several reasons such as the failure of the equipment, hostile weather conditions, etc. These faults if not detected in the real-time may lead to cascading failures resulting in a blackout. These blackouts have catastrophic consequences which result in a huge loss of resources. For example, a blackout in 2004 caused an economic loss of 10 billion U.S dollars as per the report of the Electricity Consumers Resource Council. Subsequent investigation of the blackout revealed that the catastrophe could have been prevented if there was an early warning system. Similar other blackouts across the globe forced the power system engineers to devise an effective solution for real-time monitoring and control of the power system. The consequence of these efforts is the wide area measurement system (WAMS). The WAMS consists of several sensors known as the phasor measurement units (PMUs) that collect the real information pertaining to the health of the power grid. This information in the form time synchronized voltage and current phasors is communicated to the central control center or the phasor data concentrator (PDC) where the data is analyzed for detection of power system anomalies. The communication of the synchrophasor data from each PMU to the PDC constitutes the synchrophasor communication system (SPCS). Thus, the SPCS can be considered as the edifice of the WAMS and its reliable operation is essential for the effective monitoring and control of the power system. This paper presents a comprehensive review of the various synchrophasor communication technologies, communication standards and applications. It also identifies the existing knowledge gaps and the scope for future research work.

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“…An essential factor to achieve this goal is the wide-area measurement system (WAMS), and, more specifically, the use of phasor measurement units (PMUs). Although many PMUs have been installed in power systems around the world for monitoring purposes and protection schemes, recently they are being incorporated in automatic control systems [6,[8][9][10][11]. Due to the high sampling rate and accuracy, compared with Supervisory Control and Data Acquisition (SCADA) systems, it has been possible to close the control loop not only locally, but in a wide-area-introducing in this way the wide-area control systems (WACS) [12,13].…”

Section: Introductionmentioning

confidence: 99%

Transient Stability Enhancement Using a Wide-Area Controlled SVC: An HIL Validation Approach

et al. 2018

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This paper presents a control scheme of a wide-area controlled static VAr compensator (WAC-SVC) and its real-time implementation in a hardware-in-the-loop (HIL) simulation scheme with three control objectives: (1) to increase the critical clearing time, (2) to damp the power oscillations, and (3) to minimize the maximum line current. The proposed control scheme considers a correction strategy to compensate the delays up to 200 ms. In addition to this, a generator tripping scheme based on synchrophasor measurements to determine the proximity to the loss of synchronism is proposed. A delay compensation algorithm based on polynomial approximations is also developed. The proposed WAC-SVC is experimentally validated using a Real-Time Digital Simulator platform (RTDS), industrial communication protocols, a commercial device for PMU-based control implementations, and digital relays with PMU capability. The real-time simulation results confirm its effectiveness and feasibility in real industrial applications. Furthermore, practical guidelines to implement this kind of control schemes are provided.

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The analysis of communication architecture and control mode of wide area power systems control

Cited by 9 publications

References 5 publications

Improving power grid transient stability by plug-in electric vehicles

Improving power grid transient stability by plug-in electric vehicles

A review on synchrophasor communication system: communication technologies, standards and applications

Transient Stability Enhancement Using a Wide-Area Controlled SVC: An HIL Validation Approach

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