State Estimation and Bad Data Detection in Hybrid AC/DC Systems with LCC/MMC

doi:10.11930/j.issn.1004-9649.202307020

Abstract

Abstract:

Based on the CIM/XML and CIM/E documents exported from the regional dispatching system, this paper focuses on data generation and starts by converting the exported documents into raw input data for state estimation. Considering the interactions between the AC system and LCC, MMC, and between LCC and MMC, the unified iterative method is used to model the AC/DC state estimation of the 500kV subnetwork. Subsequently, the Gaussian noise is added to the original measurement data, and the maximum residual test method is employed for detecting and identifying bad data. Finally, the effectiveness of the proposed models for AC/DC state estimation and the detection and identification of bad data are validated through simulation data.

Key words: CIM/XML, AC/DC state estimation, LCC, MMC, detection and identification of bad data, maximum likelihood residual test

Huashi ZHAO, Yaohui HUANG, Zhiqiang SONG, Jianzhong XU, Kexin ZHENG, Kangkang LIANG. State Estimation and Bad Data Detection in Hybrid AC/DC Systems with LCC/MMC[J]. Electric Power, 2024, 57(11): 62-69.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202307020

https://www.electricpower.com.cn/EN/Y2024/V57/I11/62

Figures/Tables 9

References 20

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设备种类		设备数量/个
交流线路		4017
直流线路		28
母线		5320
电容及电抗		2279
负荷		5068
接地刀闸		14673
断路器		22683
刀闸		55532
直流开关		1534
发电机组		1285
变压器绕组		6526

设备种类		设备数量/个
交流线路		4017
直流线路		28
母线		5320
电容及电抗		2279
负荷		5068
接地刀闸		14673
断路器		22683
刀闸		55532
直流开关		1534
发电机组		1285
变压器绕组		6526

节点/线路	量测类型	数量/个
交流节点	节点电压幅值量测	188
	节点注入有功量测	188
	节点注入无功量测	188
交流线路	线路有功量测	230
交流线路	线路无功量测	230
LCC	交流有功量测	4
	交流无功量测	4
	直流功率量测	4
	直流电压量测	4
	直流电流量测	4
MMC	交流有功量测	2
	交流无功量测	2
	直流功率量测	2
	直流电压量测	2
	直流电流量测	2
直流线路	直流有功量测	4

节点/线路	量测类型	数量/个
交流节点	节点电压幅值量测	188
	节点注入有功量测	188
	节点注入无功量测	188
交流线路	线路有功量测	230
交流线路	线路无功量测	230
LCC	交流有功量测	4
	交流无功量测	4
	直流功率量测	4
	直流电压量测	4
	直流电流量测	4
MMC	交流有功量测	2
	交流无功量测	2
	直流功率量测	2
	直流电压量测	2
	直流电流量测	2
直流线路	直流有功量测	4

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