CN112039391B - 高压断路器电机驱动控制系统 - Google Patents
高压断路器电机驱动控制系统 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/0003—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
- H02P21/0007—Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control using sliding mode control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/13—Observer control, e.g. using Luenberger observers or Kalman filters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/18—Estimation of position or speed
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
- H02P21/20—Estimation of torque
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
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CN202210738816.9A CN114977929B (zh) | 2020-09-04 | 2020-09-04 | 一种基于负载转矩观测的永磁同步电机控制及参数优化方法 |
CN202210705755.6A CN114915218B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机速度的负载扰动补偿控制方法 |
CN202010918602.0A CN112039391B (zh) | 2020-09-04 | 2020-09-04 | 高压断路器电机驱动控制系统 |
CN202210705776.8A CN114900086B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机负载转矩滑模观测方法 |
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CN202010918602.0A CN112039391B (zh) | 2020-09-04 | 2020-09-04 | 高压断路器电机驱动控制系统 |
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CN202210738816.9A Division CN114977929B (zh) | 2020-09-04 | 2020-09-04 | 一种基于负载转矩观测的永磁同步电机控制及参数优化方法 |
CN202210705776.8A Division CN114900086B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机负载转矩滑模观测方法 |
CN202210705755.6A Division CN114915218B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机速度的负载扰动补偿控制方法 |
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CN202210705755.6A Active CN114915218B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机速度的负载扰动补偿控制方法 |
CN202010918602.0A Active CN112039391B (zh) | 2020-09-04 | 2020-09-04 | 高压断路器电机驱动控制系统 |
CN202210738816.9A Active CN114977929B (zh) | 2020-09-04 | 2020-09-04 | 一种基于负载转矩观测的永磁同步电机控制及参数优化方法 |
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CN202210705755.6A Active CN114915218B (zh) | 2020-09-04 | 2020-09-04 | 一种永磁同步电机速度的负载扰动补偿控制方法 |
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CN114738181A (zh) * | 2022-04-19 | 2022-07-12 | 中南大学 | 一种大型风力发电机最大功率点跟踪控制方法及系统 |
CN115236973B (zh) * | 2022-07-27 | 2025-04-15 | 浙江工业大学 | 基于pso李雅普诺夫函数的agv轨迹跟踪控制方法 |
CN116599410B (zh) * | 2023-05-18 | 2024-05-03 | 南京理工大学 | 一种基于双曲正弦函数的电机调速系统负载转矩估计方法 |
CN116679551B (zh) * | 2023-07-31 | 2023-10-13 | 欣灵电气股份有限公司 | 基于编码器反馈排线轴速度的绕线机自动控制方法 |
CN118554813B (zh) * | 2024-04-24 | 2025-02-21 | 南京航空航天大学 | 基于扩展滑模扰动观测器的永磁直驱电机抗扰动控制方法 |
CN118508814B (zh) * | 2024-05-10 | 2025-06-06 | 中达电机股份有限公司 | 一种同步磁阻电机速度控制方法及系统 |
CN119483413B (zh) * | 2025-01-06 | 2025-05-02 | 深圳市安科讯电子制造有限公司 | 一种工业伺服电机运行控制方法及系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101714844A (zh) * | 2009-11-10 | 2010-05-26 | 哈尔滨工业大学 | 一种内置式永磁同步电机转子磁极初始位置检测方法 |
CN107070335A (zh) * | 2016-12-30 | 2017-08-18 | 湖南大学 | 双pwm永磁电力驱动系统转矩前馈控制方法及其控制装置 |
CN107359837A (zh) * | 2017-09-06 | 2017-11-17 | 湖南工业大学 | 基于滑模观测器和自抗扰控制的永磁同步电机转矩控制系统及方法 |
CN110557070A (zh) * | 2019-09-30 | 2019-12-10 | 山东深川变频科技股份有限公司 | 基于二阶滑模观测器的永磁同步电机参数辨识方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106026835A (zh) * | 2016-08-04 | 2016-10-12 | 上海应用技术学院 | 一种基于模糊控制和滑模观测器的无速度传感器优化方法 |
CN107070342A (zh) * | 2017-02-20 | 2017-08-18 | 哈尔滨理工大学 | 一种带负载状态观测器的永磁同步电机控制系统 |
CN110492817B (zh) * | 2019-08-05 | 2021-08-03 | 北方工业大学 | 一种永磁同步电机的直接速度预测控制方法及设备 |
CN111585488B (zh) * | 2020-05-18 | 2021-08-20 | 华中科技大学 | 一种永磁电机无速度传感器控制方法及系统 |
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2020
- 2020-09-04 CN CN202210705776.8A patent/CN114900086B/zh active Active
- 2020-09-04 CN CN202210705755.6A patent/CN114915218B/zh active Active
- 2020-09-04 CN CN202010918602.0A patent/CN112039391B/zh active Active
- 2020-09-04 CN CN202210738816.9A patent/CN114977929B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101714844A (zh) * | 2009-11-10 | 2010-05-26 | 哈尔滨工业大学 | 一种内置式永磁同步电机转子磁极初始位置检测方法 |
CN107070335A (zh) * | 2016-12-30 | 2017-08-18 | 湖南大学 | 双pwm永磁电力驱动系统转矩前馈控制方法及其控制装置 |
CN107359837A (zh) * | 2017-09-06 | 2017-11-17 | 湖南工业大学 | 基于滑模观测器和自抗扰控制的永磁同步电机转矩控制系统及方法 |
CN110557070A (zh) * | 2019-09-30 | 2019-12-10 | 山东深川变频科技股份有限公司 | 基于二阶滑模观测器的永磁同步电机参数辨识方法 |
Non-Patent Citations (4)
Title |
---|
Cascaded Observers for the Rotor Position, Speed and Load Torque of the PMSM using an Extended Dynamic Model;Mihai COMANESCU;《XVI-th International Conference on Electrical Machines, Drives and Power Systems ELMA 2019, 6-8 June 2019, Varna, Bulgaria》;20190630;全文 * |
Low Speed Control of Hybrid Excitation Synchronous Machines Based on a Novel Load Torque Sliding Mode Observer;Bingchu Liu等;《Proceedings of the 39th Chinese Control Conference》;20200729;全文 * |
基于负载转矩滑模观测的永磁同步电机滑模控制;张晓光 等;《中国电机工程学报》;20120125;第32卷(第3期);全文 * |
永磁同步电机负载转矩观测器;郑泽东 等;《电工技术学报》;20100228;第25卷(第8期);全文 * |
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Publication number | Publication date |
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CN114915218A (zh) | 2022-08-16 |
CN114915218B (zh) | 2024-09-24 |
CN114900086B (zh) | 2025-04-18 |
CN114977929B (zh) | 2024-11-26 |
CN114977929A (zh) | 2022-08-30 |
CN112039391A (zh) | 2020-12-04 |
CN114900086A (zh) | 2022-08-12 |
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Address after: No. 858, Huaguan Road, high tech Zone, Qingdao, Shandong Province 266000 Patentee after: QINGDAO TOPSCOMM COMMUNICATION Co.,Ltd. Country or region after: China Patentee after: Qingdao Zhidian New Energy Technology Co.,Ltd. Patentee after: Qingdao Tuowei Technology Co.,Ltd. Address before: No. 858, Huaguan Road, high tech Zone, Qingdao, Shandong Province 266000 Patentee before: QINGDAO TOPSCOMM COMMUNICATION Co.,Ltd. Country or region before: China Patentee before: Qingdao Zhidian New Energy Technology Co.,Ltd. Patentee before: QINGDAO DINGJUN ELECTRIC Co.,Ltd. |
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