WO2013183118A1 - 電動機制御装置 - Google Patents
電動機制御装置 Download PDFInfo
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- WO2013183118A1 WO2013183118A1 PCT/JP2012/064475 JP2012064475W WO2013183118A1 WO 2013183118 A1 WO2013183118 A1 WO 2013183118A1 JP 2012064475 W JP2012064475 W JP 2012064475W WO 2013183118 A1 WO2013183118 A1 WO 2013183118A1
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/12—Monitoring commutation; Providing indication of commutation failure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/64—Testing of capacitors
-
- 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
- H02P27/085—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 wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/026—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being a power fluctuation
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
Definitions
- the present invention relates to an electric motor control device, and more particularly, to an electric motor control device having a life estimation function of a main circuit capacitor that stabilizes and forms a bus voltage of a switching circuit.
- the switching circuit which is the main element of the inverter unit in the motor control device, generates drive power to the motor by switching the bus voltage with a switching element arranged between the DC buses of different polarity.
- the bus voltage in this switching circuit is a DC voltage that has been stabilized by removing a ripple component of the DC voltage obtained by rectifying the AC voltage input by the converter circuit using a smoothing capacitor.
- the smoothing capacitor that stabilizes and forms the bus voltage in the switching circuit is called a main circuit capacitor.
- a ripple current due to a ripple component included in the output current of the converter circuit flows through the smoothing capacitor, and is output from the switching circuit to the DC bus during the regenerative operation of the motor driven by the inverter unit.
- a ripple current due to a ripple component included in the regenerative power flows.
- a smoothing capacitor made of an electrolytic capacitor causes heat generation when a ripple current flows.
- the life of an aluminum electrolytic capacitor used as a smoothing capacitor is deteriorated according to the Arrhenius law due to thermal stress accompanying the temperature rise.
- First conventional example For example, when the main power supply of the motor control device is turned off, a constant current I is allowed to flow for a certain period ⁇ to measure the voltage drop ⁇ V of the smoothing capacitor during that period, and the remaining capacity C of the smoothing capacitor is calculated.
- the remaining capacity of the smoothing capacitor can be calculated with high accuracy without calculating the amount of thermal stress.
- the amount of thermal stress of a smoothing capacitor is calculated by means for detecting the temperature of the smoothing capacitor, a coefficient normalized from the carrier frequency, and a coefficient normalized from the output voltage command. And a means for accumulating the amount of thermal stress during the operation time of the motor control device, calculating output power to the motor from the voltage command, and calculating thermal stress of the smoothing capacitor from the output power Techniques have been proposed for performing life integration calculations.
- the life deterioration of the smoothing capacitor can be predicted online by integrating the amount of thermal stress of the smoothing capacitor.
- Patent Document 2 proposes a technique for reducing or stopping the output power of the motor control device when it is predicted that the smoothing capacitor has reached the lifetime based on the prediction result of the lifetime deterioration. . Since the electric motor control device disclosed in Patent Document 2 has a configuration in which the capacitor is determined to have a lifetime, the smoothing capacitor itself may be overheated and damaged, or the ripple voltage may increase due to a decrease in the capacitor capacity. The durability of the device can be utilized as effectively as possible without causing unstable control of the electric motor or applying an overvoltage to the switching element to cause damage to the switching element.
- the smoothing capacitor may reach the life without detecting the remaining capacity when continuously operating for a long time. Therefore, when performing maintenance, it is necessary to turn on and off the main power supply of the motor control device for each maintenance, and there is a problem that the efficiency of the maintenance work is poor.
- the AC power input from the system power supply is rectified by a diode bridge via the inserted system impedance. Since the ripple component included in the output current of the converter circuit is greatly influenced by the system impedance, it is difficult to accurately calculate the amount of thermal stress of the smoothing capacitor, and the desired estimated life accuracy cannot be obtained. .
- the operator checks the motor control device and checks its display and alarm to confirm the life determination result. Without it, life-prolonging treatment cannot be performed. In other words, if the display or alarm is overlooked, the motor control device stops the output due to the life determination without taking any life-prolonging treatment, so that there is a problem that the desired life time cannot be satisfied.
- the present invention has been made in view of the above, and it is possible to obtain an electric motor control device that can accurately perform life deterioration estimation of a main circuit capacitor online without detecting a ripple current flowing into the main circuit capacitor. With the goal.
- the present invention converts the AC power of the system power input through the inserted system impedance into DC power by full-wave rectification, and converts the positive and negative DC buses.
- a converter circuit that outputs in between, a main circuit capacitor that smoothes and stabilizes the bus voltage between the positive and negative DC buses by removing ripple components contained therein, and a bus voltage that the main circuit capacitor forms stably
- the inverter unit that generates AC power for switching to AC voltage to drive the motor by switching according to the control signal, the detected output current to the motor, and the set operation speed command and carrier frequency
- the inverter And an inverter control unit that generates the control signal that defines a switching operation of the unit, Based on a voltage detection unit that detects a DC voltage applied to the main circuit capacitor, the DC voltage detected by the voltage detection unit, the detected output current to the motor, and the set carrier frequency Set in the inverter control unit that calculates output power to the motor, a system impedance setting unit that
- a capacitor ripple current estimator for detecting the ambient temperature of the main circuit capacitor.
- a second storage unit for storing capacitor life data; a DC voltage detected by the voltage detection unit; and an ambient temperature of the main circuit capacitor detected by the ambient temperature sensor and the second storage in advance. Based on the capacitor lifetime data prepared in the section, the internal temperature of the main circuit capacitor is estimated, the estimated internal temperature is used to estimate the lifetime of the main circuit capacitor, and the estimated internal temperature and lifetime are used.
- a capacitor life estimation time and a capacitor life consumption rate are calculated and stored in the second storage unit every time a life calculation period is repeated; a capacitor life estimation unit estimated by the capacitor life estimation unit; Compare the basic life time stored as the capacitor life data in the second storage unit.
- a capacitor life determination unit to be generated, and at least a display unit to display a pre-alarm generated by the capacitor life determination unit are provided.
- the ripple current of the main circuit capacitor can be estimated based on the output power to the motor and the system impedance without detecting the ripple current flowing into the main circuit capacitor. Capacitor ripple current estimation and life estimation calculations can be performed. At that time, since the system impedance data that has a large effect on the ripple current estimation of the main circuit capacitor is used, it is possible to estimate the capacitor ripple current according to the magnitude of the system impedance, and the main circuit capacitor life estimation calculation with high accuracy can be performed. There is an effect that it becomes possible.
- FIG. 1 is a block diagram showing a configuration of an electric motor control apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a diagram showing an example of the life characteristics of an aluminum electrolytic capacitor used for the main circuit capacitor.
- FIG. 3 is a block diagram showing the configuration of the motor control device according to Embodiment 2 of the present invention.
- FIG. 1 is a block diagram showing a configuration of an electric motor control apparatus according to Embodiment 1 of the present invention.
- the configuration for estimating the life of the main circuit capacitor is shown in a form using a part of the general configuration of the motor control device.
- a converter circuit 1 is a three-phase full-wave rectifier circuit constituted by a diode bridge, and an AC input terminal is connected to a system power supply 3 via an inserted system impedance (reactor) 2, and a DC output terminal Are connected to the positive electrode bus P and the negative electrode bus N. That is, the converter circuit 1 converts the three-phase AC voltage of the system power supply 3 input via the inserted system impedance 2 into a DC voltage including a ripple component by performing three-phase full-wave rectification, and converts it to the positive bus P Output between the negative bus N.
- a smoothing capacitor 4 and a switching circuit 5 are arranged in parallel.
- the smoothing capacitor 4 removes a ripple component included in the DC voltage rectified and output between the positive bus P and the negative bus N by the converter circuit 1 to form a stable bus voltage.
- the smoothing capacitor 4 is referred to as a main circuit capacitor 4.
- a series circuit of switching elements Q1 and Q2 a series circuit of switching elements Q3 and Q4, and a series circuit of switching elements Q5 and Q6 are arranged in parallel between the positive electrode bus P and the negative electrode bus N.
- the diodes D1 to D6 are connected in antiparallel to the switching elements Q1 to Q6, respectively.
- the control terminals of the switching elements Q1 to Q6 are connected to the output terminal of the drive circuit 6.
- the drive circuit 6 individually drives each of the switching elements Q1 to Q6 in accordance with a switching pulse (PWM signal) 8 from the inverter control unit 7a.
- PWM signal switching pulse
- the entirety of the switching circuit 5 and the drive circuit 6 is a so-called inverter unit.
- a connection end of the switching elements in each series circuit of the switching elements Q1 to Q6 serves as an output end, and a power cable to the electric motor 9 is connected.
- a current sensor 10 is provided on the power cable to the electric motor 9.
- the current calculation unit 11 calculates the output current I OUT from the detection current of the current sensor 7.
- the inverter control unit 7a uses the output current I OUT calculated by the current calculation unit 11, the operation speed command ⁇ set in the operation speed setting unit 12, and the switching frequency of the switching circuit 5 set in the carrier frequency setting circuit 13.
- a switching pulse (PWM signal) 8 to the drive circuit 6 is generated based on a certain carrier frequency fSW .
- the voltage detection unit 14 the system impedance setting unit 15, the capacitor ripple current estimation unit 16, and the ripple current calculation data
- a storage unit 17, an ambient temperature sensor 18, a capacitor life estimation unit 19a, a capacitor life data storage unit 20, a capacitor life determination unit 21a, and a display unit 22 are added, and some functions are added to the inverter control unit 7a. Has been made.
- a ripple current due to a ripple component contained in the output current of the converter circuit 1 flows through the main circuit capacitor 4, and the regenerative power output from the switching circuit 5 to the DC bus (P, N) during the regenerative operation of the electric motor 9.
- a ripple current due to the included ripple component flows.
- the ripple current causes the main circuit capacitor 4 to generate heat.
- Tx the internal temperature of the capacitor.
- Ta the ambient temperature of the main circuit capacitor 4.
- ⁇ Tx a temperature rise from the ambient temperature.
- I R is the ripple current flowing through the main circuit capacitor 4.
- R is an equivalent series resistance of the main circuit capacitor 4.
- ⁇ is a heat dissipation coefficient of the main circuit capacitor 4.
- the aluminum electrolytic capacitor used as the main circuit capacitor 4 causes life deterioration according to the Arrhenius law due to the thermal stress accompanying the temperature rise.
- Lo is a basic life time when the rated voltage is applied and the rated ripple voltage is applied under the upper limit temperature of the main circuit capacitor 4.
- Vo is the rated voltage of the main circuit capacitor 4.
- Vx is a DC voltage applied to the main circuit capacitor 4 during use.
- the exponent K is the applied voltage reduction rate of the main circuit capacitor 4.
- FIG. 2 is a diagram showing an example of the life characteristics of an aluminum electrolytic capacitor used for the main circuit capacitor.
- the vertical axis represents the lifetime L
- the horizontal axis represents the internal temperature Tx.
- the voltage detection unit 14 detects the DC voltage Vx applied to the main circuit capacitor 4 and outputs it to the inverter control unit 7a and the capacitor life estimation unit 19a.
- the inverter control unit 7a is based on the operation speed command ⁇ set in the operation speed setting circuit 12, the output current I OUT calculated by the current calculation unit 11, and the applied DC voltage Vx detected by the voltage detection unit 14. It calculates the output power P OUT to 9, and outputs the capacitor ripple current estimator 16.
- the capacitor ripple current estimation unit 16 outputs the output power P OUT obtained by the inverter control unit 7 a, the carrier frequency f SW set in the carrier frequency setting circuit 13, and the impedance of the system impedance 3 set in the system impedance setting unit 15.
- a coefficient Z S the coefficient k 1, k 2 stored in the ripple current calculation data storage unit 17 is applied to equation (3), to estimate the ripple current I R flowing through the main circuit capacitor 4, the capacitor lifetime estimation To the unit 19a.
- I R P OUT ⁇ ⁇ ⁇ (k 1 ⁇ f SW ) 2 + (Z S ⁇ k 2 ) 2 ⁇ (3)
- the coefficient k 1 is a carrier ripple current correction coefficient.
- Coefficient k 2 is a system ripple current correction factor.
- the capacitor life estimation unit 19a first includes the ambient temperature Ta of the main circuit capacitor 4 measured by the ambient temperature sensor 18, the DC voltage Vx applied to the main circuit capacitor 4 measured by the voltage detection unit 14, and the capacitor ripple current estimation unit. 16 and ripple current I R estimated in, by applying the life calculation data 24 stored in the capacitor lifetime data storing unit 20 in the formula (1) to calculate the internal temperature Tx of the main circuit capacitor 4.
- the capacitor life estimation unit 19 a stores the calculated internal temperature Tx and the capacitor life data storage unit 20.
- the capacitor life consumption rate L N / L 0 is calculated using the stored life calculation data 24, the equation (2), and the equation (4) for determining the capacitor life integration time L N.
- L 0 is the basic life time.
- the capacitor life integration time L N and the capacitor life consumption rate L N / L 0 calculated by the capacitor life estimation unit 19a are stored in the capacitor life data storage unit 20, and also the capacitor life determination unit 21a and the display unit 22 And output.
- the capacitor life data storage unit 20 as the life calculation data 24, the equivalent series resistance R of the main circuit capacitor 4, the heat dissipation coefficient ⁇ , the rated voltage V 0 , the applied voltage reduction rate k, the allowable internal temperature T 0 , the basic life The time L 0 and the previous life integration data L N ⁇ 1 are stored.
- Equation (4) for determining the capacitor life integrated time LN will be described.
- L N L N ⁇ 1 + ( ⁇ t ⁇ k 3 ) / 3600 (4)
- ⁇ t is a life deterioration calculation cycle [seconds].
- k 3 is the lifetime coefficient obtained by Equation (5).
- k 3 [2 ⁇ ⁇ (T 0 -T X ) / 10 ⁇ ] ⁇ (V 0 / V X ) K (5)
- the capacitor life determination unit 21a includes the capacitor life integration time L N at the capacitor life consumption rate L N / L 0 estimated by the capacitor life estimation unit 19a and the life calculation data 23 stored in the capacitor life data storage unit 20. Compared with the basic life L 0 of L N ⁇ L 0 When this happens, a pre-alarm 25 is generated and displayed on the display 22.
- the display 22 can display the life time L, the life consumption rate L N / L 0 , and the pre-alarm 24 of the main circuit capacitor 4 online.
- the ripple current of the main circuit capacitor can be estimated based on the output power to the motor and the system impedance without detecting the ripple current flowing into the main circuit capacitor. On-line, it is possible to always perform the ripple current estimation and life estimation calculation of the main circuit capacitor.
- FIG. FIG. 3 is a block diagram showing the configuration of the motor control device according to Embodiment 2 of the present invention.
- components that are the same as or equivalent to the components shown in FIG. 1 are assigned the same reference numerals.
- the description will be focused on the portion related to the second embodiment.
- the electric motor control apparatus has an expected life setting unit 26 and an operating time integrating unit 27 added to the configuration shown in FIG.
- An inverter control unit 7b, a capacitor life estimation unit 19b, and a capacitor life determination unit 21b are provided.
- Capacitor life estimator circuit 19b is a remaining life time of the main circuit capacitor 4
- L R is calculated using Equation (6) to the capacitor life determination unit 21b.
- L R (L 0 ⁇ L N ) ⁇ [2 ⁇ ⁇ (T 0 -T X ) / 10 ⁇ ] ⁇ (V 0 / V X ) K (6)
- Expected life setting section 26 outputs an expected lifetime L E of the main circuit capacitor 4 which is set in the capacitor life determination unit 21b. Further, the operating time integrating unit 27 integrates the operating time TL of the electric motor control device and outputs it to the capacitor life determining unit 21b.
- Capacitor life determination part 21b compares the difference between the operating time T L of the expected lifetime L E and the motor control unit, the main circuit capacitor 4 and a remaining lifetime L R, L R ⁇ L E ⁇ T L If a to and determines that it can not satisfy the expected life time L E of the main circuit capacitor 4 which is set to the expected service life estimation unit 26, and outputs a power alleviate instruction 28 to the inverter control unit 7b.
- the inverter control unit 7 b When the inverter control unit 7 b receives the power reduction instruction 28 from the capacitor life determination unit 21 b, the inverter control unit 7 b outputs a switching pulse 8 that reduces the output power of the motor control device, that is, the output power to the motor 9, to the drive circuit 6.
- the upper limit value of the output power of the motor control device is limited, so that the temperature rise of the main circuit capacitor 4 can be reduced, and the expected life time of the main circuit capacitor 4 set in the expected life estimation unit 25 the L E will be able to satisfy.
- the output power of the motor control device is slightly limited.
- the ambient temperature of the motor control device is high and the life of the main circuit capacitor 4 cannot satisfy the expected life time.
- the main circuit capacitor can satisfy the desired expected life time.
- the motor control device is useful as a motor control device that can accurately estimate the life deterioration of the main circuit capacitor online without detecting the ripple current flowing into the main circuit capacitor. is there.
- Converter circuit 2 System impedance 3 System power supply 4 Smoothing capacitor (Main circuit capacitor) DESCRIPTION OF SYMBOLS 5 Switching circuit 6 Drive circuit 7a, 7b Inverter control part 9 Electric motor 10 Current sensor 11 Current calculation part 12 Driving speed setting part 13 Carrier frequency setting part 14 Voltage detection part 15 System impedance setting part 16 Capacitor ripple current estimation part 17 Ripple current calculation Data storage unit 18 Ambient temperature sensor 19a, 19b Capacitor life estimation unit 20 Capacitor life data storage unit 21a, 21b Capacitor life determination unit 22 Display unit 26 Expected life setting unit 27 Operating time integration unit
Abstract
Description
図1は、本発明の実施の形態1による電動機制御装置の構成を示すブロック図である。図1では、主回路コンデンサの寿命推定を行う構成が電動機制御装置の一般的な構成の一部を利用する形で示されている。
図1において、コンバータ回路1は、ダイオードブリッジで構成される三相全波整流回路であり、交流入力端は、挿入した系統インピーダンス(リアクトル)2を介して系統電源3に接続され、直流出力端は、正極母線Pおよび負極母線Nに接続される。つまり、コンバータ回路1は、挿入した系統インピーダンス2を介して入力される系統電源3の三相交流電圧を三相全波整流してリプル成分を含む直流電圧へ変換し、それを正極母線Pと負極母線Nとの間に出力する。
Tx=Ta+ΔTx=Ta+IR 2×R×β …(1)
なお、式(1)において、Taは主回路コンデンサ4の周囲温度である。ΔTxは周囲温度からの温度上昇である。IRは主回路コンデンサ4に流れるリプル電流である。Rは主回路コンデンサ4の等価直列抵抗である。βは主回路コンデンサ4の放熱係数である。
L=L0×[2^{(T0-TX)/10}]×(V0/VX)K …(2)
IR=POUT×√{(k1×fSW)2+(ZS×k2)2} …(3)
なお、係数k1は、キャリアリプル電流補正係数である。係数k2は、系統リプル電流補正係数である。
LN=LNー1+(Δt×k3)/3600 …(4)
なお、式(4)において、Δtは寿命劣化演算周期[秒]である。k3は式(5)により求められる寿命係数である。
k3=[2^{(T0-TX)/10}]×(V0/VX)K …(5)
LN≒L0
となった場合に、プリアラーム25を生成し、表示器22に表示させる。
図3は、本発明の実施の形態2による電動機制御装置の構成を示すブロック図である。なお、図3では、図1(実施の形態1)に示した構成要素と同一ないし同等である構成要素には同一の符号が付されている。ここでは、この実施の形態2に関わる部分を中心に説明する。
LR=(L0-LN)×[2^{(T0-TX)/10}]×(V0/VX)K …(6)
LR≦LE-TL
となった場合に、期待寿命推定部26に設定された主回路コンデンサ4の期待寿命時間LEを満足できないと判断し、電力軽減指示28をインバータ制御部7bに出力する。
2 系統インピーダンス
3 系統電源
4 平滑コンデンサ(主回路コンデンサ)
5 スイッチング回路
6 駆動回路
7a,7b インバータ制御部
9 電動機
10 電流センサ
11 電流演算部
12 運転速度設定部
13 キャリア周波数設定部
14 電圧検出部
15 系統インピーダンス設定部
16 コンデンサリプル電流推定部
17 リプル電流算出データ記憶部
18 周囲温度センサ
19a,19b コンデンサ寿命推定部
20 コンデンサ寿命データ記憶部
21a,21b コンデンサ寿命判定部
22 表示部
26 期待寿命設定部
27 稼動時間積算部
Claims (2)
- 挿入される系統インピーダンスを介して入力される系統電源の交流電力を全波整流により直流電力へ変換し正極と負極の直流母線間に出力するコンバータ回路と、前記正極と負極の直流母線間の母線電圧をそれに含まれるリプル成分を取り除いて平滑し安定化させる主回路コンデンサと、前記主回路コンデンサが安定化形成する母線電圧を制御信号に従ってスイッチングして交流電圧へ変換し電動機を駆動する交流電力を生成するインバータ部と、検出された前記電動機への出力電流と、設定された運転速度指令およびキャリア周波数とに基づき、前記インバータ部のスイッチング動作を規定する前記制御信号を生成するインバータ制御部とを備える電動機制御装置において、
前記主回路コンデンサに印加される直流電圧を検出する電圧検出部と、
前記電圧検出部にて検出された直流電圧と前記検出された前記電動機への出力電流と前記設定されたキャリア周波数とに基づき前記電動機への出力電力を演算する前記インバータ制御部と、
前記挿入される系統インピーダンスを設定する系統インピーダンス設定部と、
リプル電流算出データを記憶する第1の記憶部と、
前記系統インピーダンス設定部に設定された系統インピーダンスと前記インバータ制御部にて算出された出力電力と前記設定されたキャリア周波数と予め前記第1の記憶部に用意したリプル電流算出データとに基づき前記主回路コンデンサのリプル電流を推定するコンデンサリプル電流推定部と、
前記主回路コンデンサの周囲温度を検出する周囲温度センサと、
コンデンサ寿命データを記憶する第2の記憶部と、
前記電圧検出部にて検出された直流電圧と前記周囲温度センサにて検出されて前記主回路コンデンサの周囲温度と予め前記第2の記憶部に用意したコンデンサ寿命データとに基づき、前記主回路コンデンサの内部温度を推定し、推定した内部温度を用いて前記主回路コンデンサの寿命時間を推定し、推定した内部温度および寿命時間を用いてコンデンサ寿命積算時間とコンデンサ寿命消費率とを算出し、前記第2の記憶部に蓄積することを寿命演算周期毎に繰り返すコンデンサ寿命推定部と、
前記コンデンサ寿命推定部が推定したコンデンサ寿命積算時間と前記第2の記憶部にコンデンサ寿命データとして記憶されている基本寿命時間とを比較し、両者がほぼ等しいときプリアラームを生成するコンデンサ寿命判定部と、
少なくとも、前記コンデンサ寿命判定部が生成するプリアラームを表示する表示部と
を備えたことを特徴とする電動機制御装置。 - 前記電圧検出部にて検出された直流電圧と前記周囲温度センサにて検出されて前記主回路コンデンサの周囲温度と前記第2の記憶部に記憶されるコンデンサ寿命データとに基づき、前記主回路コンデンサの内部温度を推定し、推定した内部温度を用いて前記主回路コンデンサの残寿命時間を推定算出する前記コンデンサ寿命推定部と、
前記主回路コンデンサの期待寿命時間を設定する期待寿命設定部と、
当該電動機制御装置の稼動時間を積算する稼動時間積算部と、
前記期待寿命設定部に設定された前記主回路コンデンサの期待寿命時間と前記稼動時間積算部が積算した当該電動機制御装置の稼動時間との差分を求め、その求めた差分と前記コンデンサ寿命推定部にて推定された前記主回路コンデンサの残寿命時間とを比較し、前記主回路コンデンサの寿命時間が残寿命時間を満足できないと判定すると電力軽減指示を出力する前記コンデンサ寿命判定部と、
前記コンデンサ寿命判定部から前記電力軽減指示が入力されたとき、前記インバータ部へ出力する前記制御信号を、前記電動機への出力電力を減少させる制御信号に切り換える前記インバータ制御部と
を更に備えていることを特徴とする請求項1に記載の電動機制御装置。
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016031305A (ja) * | 2014-07-29 | 2016-03-07 | 日本電信電話株式会社 | 寿命判定方法、寿命予測方法、および装置 |
WO2018193712A1 (ja) * | 2017-04-21 | 2018-10-25 | 株式会社日立製作所 | 電力変換装置、その診断システム、診断方法、及びそれを用いた電動機制御システム |
JP2020171100A (ja) * | 2019-04-02 | 2020-10-15 | 三菱重工サーマルシステムズ株式会社 | 寿命予測装置、空調システム、寿命予測方法及びプログラム |
JP2020171101A (ja) * | 2019-04-02 | 2020-10-15 | 三菱重工サーマルシステムズ株式会社 | 空調システムの制御装置、空調システムの制御方法及びプログラム |
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WO2022131292A1 (ja) * | 2020-12-16 | 2022-06-23 | 本田技研工業株式会社 | 情報処理装置、算出方法、プログラム、および記憶媒体 |
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Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
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US20160105097A1 (en) * | 2013-05-13 | 2016-04-14 | Linak A/S | Electric actuator system |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03269269A (ja) * | 1990-03-19 | 1991-11-29 | Hitachi Ltd | インバータ装置 |
JPH1169834A (ja) * | 1997-08-12 | 1999-03-09 | Fuji Electric Co Ltd | インバータ装置用アルミ電解コンデンサの寿命警報装置 |
JPH11356036A (ja) * | 1998-06-04 | 1999-12-24 | Toshiba Corp | 直流電源装置 |
JP2008164453A (ja) * | 2006-12-28 | 2008-07-17 | Mitsubishi Electric Corp | インバータ装置の平滑コンデンサ寿命判定装置 |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0792212A (ja) | 1993-09-24 | 1995-04-07 | Toshiba Corp | コンデンサ寿命診断装置 |
JPH0792213A (ja) | 1993-09-28 | 1995-04-07 | Meidensha Corp | 直流電解コンデンサの寿命診断装置 |
JPH09290970A (ja) | 1996-04-26 | 1997-11-11 | Hitachi Ltd | エレベータの制御装置 |
JPH11163074A (ja) | 1997-12-02 | 1999-06-18 | Toshiba Corp | 半導体装置およびその寿命推定方法 |
JPH11190754A (ja) | 1997-12-26 | 1999-07-13 | Isuzu Motors Ltd | 電解コンデンサ寿命推定方法および装置 |
JPH11231008A (ja) | 1998-02-16 | 1999-08-27 | Omron Corp | コンデンサ寿命診断装置およびコンデンサ内蔵機器 |
JP2002025872A (ja) | 2000-07-11 | 2002-01-25 | Matsushita Electric Ind Co Ltd | アルミ電解コンデンサの寿命推定方法 |
JP3958938B2 (ja) | 2001-02-21 | 2007-08-15 | 矢崎総業株式会社 | 自動通報装置 |
JP2002281735A (ja) | 2001-03-23 | 2002-09-27 | Hitachi Ltd | コンデンサ寿命診断装置付き電源ユニット及びコンデンサ寿命診断装置 |
JP2004120969A (ja) * | 2002-09-30 | 2004-04-15 | Kyocera Corp | 電力変換装置 |
JP4069373B2 (ja) | 2002-11-22 | 2008-04-02 | 株式会社安川電機 | コンデンサ寿命診断装置およびコンデンサ寿命診断方法 |
JP4151651B2 (ja) * | 2003-03-17 | 2008-09-17 | 三菱電機株式会社 | インバータ装置 |
JP2006524332A (ja) | 2003-04-23 | 2006-10-26 | パワートロン エンジニアリング カンパニー リミテッド | 非常電源システムの劣化診断システム |
JP2006229130A (ja) | 2005-02-21 | 2006-08-31 | Kansai Electric Power Co Inc:The | 電源装置の寿命推定方法および寿命管理方法 |
JP4755840B2 (ja) | 2005-03-31 | 2011-08-24 | 関西電力株式会社 | 電解コンデンサの劣化診断装置および劣化診断方法 |
JP2007049837A (ja) * | 2005-08-10 | 2007-02-22 | Hitachi Ltd | 電力変換器の制御装置 |
JP4812368B2 (ja) | 2005-08-24 | 2011-11-09 | 三菱電機エンジニアリング株式会社 | 電力用コンデンサの寿命診断機能付き充電装置 |
JP4661590B2 (ja) * | 2005-12-27 | 2011-03-30 | パナソニック株式会社 | 洗濯乾燥機のモータ駆動装置 |
US7132816B1 (en) * | 2006-02-20 | 2006-11-07 | Hamilton Sundstrand Corporation | Brushless wound field synchronous machine rotor position tracking with exciter stator current harmonic tracking |
JP2007244161A (ja) | 2006-03-10 | 2007-09-20 | Mels Corp | 電源装置及びその寿命診断装置 |
JP2007295655A (ja) | 2006-04-21 | 2007-11-08 | Yaskawa Electric Corp | 電力変換装置 |
JP2007318838A (ja) | 2006-05-23 | 2007-12-06 | Daikin Ind Ltd | 制御装置 |
JP2007318872A (ja) | 2006-05-24 | 2007-12-06 | Daikin Ind Ltd | 制御装置 |
JP4845613B2 (ja) | 2006-07-05 | 2011-12-28 | 三菱電機エンジニアリング株式会社 | 電力用コンデンサ寿命診断機能付き充電装置 |
DE112007001787T5 (de) * | 2006-07-31 | 2009-09-10 | Mitsubishi Electric Corp. | Stromversorgungsvorrichtung und Sequenzersystem |
JP4861784B2 (ja) | 2006-09-27 | 2012-01-25 | 三菱電機株式会社 | スイッチング電源装置 |
US7723929B2 (en) * | 2006-11-27 | 2010-05-25 | Power Integrations, Inc. | Variable inductive power supply arrangement for cold cathode fluorescent lamps |
US7728544B2 (en) * | 2007-05-08 | 2010-06-01 | Rockwell Automation Technologies, Inc. | System and method for controlling input line harmonics in a motor drive |
JP5294704B2 (ja) | 2008-05-26 | 2013-09-18 | 株式会社日立産機システム | 電源監視装置 |
JP5428810B2 (ja) | 2009-12-03 | 2014-02-26 | 富士電機株式会社 | 余寿命推定方法及び余寿命推定システム |
-
2012
- 2012-06-05 CN CN201280073746.4A patent/CN104335470B/zh active Active
- 2012-06-05 WO PCT/JP2012/064475 patent/WO2013183118A1/ja active Application Filing
- 2012-06-05 JP JP2012551014A patent/JP5197897B1/ja active Active
- 2012-06-05 KR KR1020147036135A patent/KR101668174B1/ko active IP Right Grant
- 2012-06-05 US US14/395,360 patent/US9397593B2/en active Active
- 2012-11-01 TW TW101140477A patent/TWI485970B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03269269A (ja) * | 1990-03-19 | 1991-11-29 | Hitachi Ltd | インバータ装置 |
JPH1169834A (ja) * | 1997-08-12 | 1999-03-09 | Fuji Electric Co Ltd | インバータ装置用アルミ電解コンデンサの寿命警報装置 |
JPH11356036A (ja) * | 1998-06-04 | 1999-12-24 | Toshiba Corp | 直流電源装置 |
JP2008164453A (ja) * | 2006-12-28 | 2008-07-17 | Mitsubishi Electric Corp | インバータ装置の平滑コンデンサ寿命判定装置 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016031305A (ja) * | 2014-07-29 | 2016-03-07 | 日本電信電話株式会社 | 寿命判定方法、寿命予測方法、および装置 |
WO2018193712A1 (ja) * | 2017-04-21 | 2018-10-25 | 株式会社日立製作所 | 電力変換装置、その診断システム、診断方法、及びそれを用いた電動機制御システム |
JP2018183015A (ja) * | 2017-04-21 | 2018-11-15 | 株式会社日立製作所 | 電力変換装置、その診断システム、診断方法、及びそれを用いた電動機制御システム |
CN110521104A (zh) * | 2017-04-21 | 2019-11-29 | 株式会社日立制作所 | 电力转换装置、其诊断系统、诊断方法和使用它的电动机控制系统 |
CN110521104B (zh) * | 2017-04-21 | 2021-01-29 | 株式会社日立制作所 | 电力转换装置、其诊断系统、诊断方法和使用它的电动机控制系统 |
JP2022515575A (ja) * | 2019-03-26 | 2022-02-18 | ミツビシ・エレクトリック・アールアンドディー・センター・ヨーロッパ・ビーヴィ | Dcバスコンデンサのパラメーターを監視する方法 |
JP2020171100A (ja) * | 2019-04-02 | 2020-10-15 | 三菱重工サーマルシステムズ株式会社 | 寿命予測装置、空調システム、寿命予測方法及びプログラム |
JP2020171101A (ja) * | 2019-04-02 | 2020-10-15 | 三菱重工サーマルシステムズ株式会社 | 空調システムの制御装置、空調システムの制御方法及びプログラム |
JP7288332B2 (ja) | 2019-04-02 | 2023-06-07 | 三菱重工サーマルシステムズ株式会社 | 空調システムの制御装置、空調システムの制御方法及びプログラム |
JP7366571B2 (ja) | 2019-04-02 | 2023-10-23 | 三菱重工サーマルシステムズ株式会社 | 寿命予測装置、空調システム、寿命予測方法及びプログラム |
WO2022131292A1 (ja) * | 2020-12-16 | 2022-06-23 | 本田技研工業株式会社 | 情報処理装置、算出方法、プログラム、および記憶媒体 |
WO2023037470A1 (ja) * | 2021-09-09 | 2023-03-16 | 三菱電機株式会社 | 空調システム |
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CN104335470B (zh) | 2017-03-08 |
KR20150021535A (ko) | 2015-03-02 |
US20150130380A1 (en) | 2015-05-14 |
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US9397593B2 (en) | 2016-07-19 |
JP5197897B1 (ja) | 2013-05-15 |
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