Alleviating congestion of hybrid urban grid by VSC‐control and AC‐line switching

Xiong, Qian; Li, Yong; Peng, Hai; Zhang, Xi; Liu, Youbo; Liu, Xianglong

doi:10.1049/joe.2018.8518

Cited by 2 publications

(5 citation statements)

References 12 publications

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“…According to (12) and (13), the DC unbalanced power can be accurately distributed by both VSC i1 and VSC i2 .…”

Section: Unbalanced Power Coordinated Distribution Strategy Considerimentioning

confidence: 99%

“…According to (12), (13), (14) and (16), the controller parameters can be calculated. Based on the above-mentioned, under VSC i1 priority mode, the selection of U dcli1 should consider the control margin, which is reserved for VSC i2 .…”

Section: Calculation Of the Apc Converter Controller Parametersmentioning

confidence: 99%

“…Similar to case 4.1, U dcL2 and U dcL4 are 391 kV and 390 kV, respectively. U dcl2 and U dcl4 are 379 kV and 383 kV, according to (12), (13), (14), and (16). Under the shared control mode, the DC unbalanced power is absorbed by both VSC 2 and VSC 4 , and the active power is −176.3 MW and −67.1 MW.…”

Section: Simulation Under Shared Control Modementioning

confidence: 99%

“…The results verify the effectiveness of the proposed control strategy. In [12], a coordinative control model that combines the load transfer capability of the HVDN and flexible and precise control of VSC is proposed to alleviate the urban transmission congestion. Although the above two papers have studied the control of VSC-HVDC in the urban power grid, the research project is the two-terminal DC system, and the multi-terminal DC system is not mentioned.…”

Section: Introductionmentioning

confidence: 99%

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Coordinated Control Strategy of CU-MTDC under Abnormal Conditions Considering Power Supply Security

Wang

Liang

et al. 2021

Applied Sciences

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The coastal urban multi-terminal DC (CU-MTDC) is a prospective solution for enhancing the power supply security of the coastal urban power (CUP) grid and integrating the large-scale offshore wind farm. However, the large DC disturbances may significantly impact the CUP power supply security. The existing DC unbalanced power distribution methods are difficult to be applied in the CU-MTDC because of the complicated optimization process and the expansion of the influence range of a DC fault. To solve the above problems, this paper proposes a coordinated control strategy of CU-MTDC under abnormal conditions. First, calculation principles for the active power reference of center coastal urban power (CCUP) grid converters are proposed. Second, a DC unbalanced power coordinated distribution strategy under abnormal conditions is used based on the dynamic priority control to ensure power supply security of the critical AC lines. Third, the controller parameters of CCUP grid converters are calculated. Through a simple control process, the number of the regulation converters is dynamically scheduled according to the DC unbalanced power. The DC fault influence range on the urban power grid can be limited in a sufficiently small area. Simulation verified the effectiveness of the proposed control strategy.

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“…According to (12) and (13), the DC unbalanced power can be accurately distributed by both VSC i1 and VSC i2 .…”

Section: Unbalanced Power Coordinated Distribution Strategy Considerimentioning

confidence: 99%

Section: Calculation Of the Apc Converter Controller Parametersmentioning

confidence: 99%

Section: Simulation Under Shared Control Modementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Coordinated Control Strategy of CU-MTDC under Abnormal Conditions Considering Power Supply Security

Wang

Liang

et al. 2021

Applied Sciences

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“…Traditionally, switching reconfiguration is applied to achieve peak shaving or load balance among multiple AC distribution networks [3]- [5]. EVs and ES are also considered as active measures to participate in peak shaving.…”

Section: Introductionmentioning

confidence: 99%

Interactive game based peak shaving management in the AC/DC hybrid distribution network

2021

CSEE JPES

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The large-scale integration of DC loads such as electric vehicles and air conditioners has increased the peak demand of the distribution network. Therefore, this paper proposed a load peak shaving operation management model based on interactive games among multi-stakeholder (e.g., distribution network operator, energy storage owner and electric vehicle users) in AC/DC hybrid distribution network. The supply and demand balance among multiple AC networks can be realized through DC network with the help of electric vehicles and energy storage when the distribution network operator adjusts the time-of-use electricity price in the peak shaving management model. Distribution network operators aim at minimizing the peak-to-valley difference and maximizing the operation revenue while energy storage owner and electric vehicle users seek for the greatest benefits in interactive game process. The above game model is constructed in a master-slave framework, where the existence and uniqueness of the game equilibrium is also proved. Finally, the numerical results show that the proposed operation management model can effectively reduce the peak-to-valley difference when ensuring the interests of all stakeholders.

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Alleviating congestion of hybrid urban grid by VSC‐control and AC‐line switching

Cited by 2 publications

References 12 publications

Coordinated Control Strategy of CU-MTDC under Abnormal Conditions Considering Power Supply Security

Coordinated Control Strategy of CU-MTDC under Abnormal Conditions Considering Power Supply Security

Interactive game based peak shaving management in the AC/DC hybrid distribution network

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